Patent application number | Description | Published |
20080275428 | OPTIC-BASED CONTACT SENSING ASSEMBLY AND SYSTEM - The invention relates to an optic-based sensing assembly and a system incorporating the assembly and related use of the assembly. In particular, the invention relates to an optic-based catheter assembly and related system used to determine contact between a catheter and surrounding proximate environment, such as tissue. An embodiment of such a system may, for example, be used for visualization, mapping, ablation, or other methods of diagnosis and treatment of tissue and/or surrounding areas. | 11-06-2008 |
20080275442 | Systems and Methods for Electrode Contact Assessment - Systems and methods are disclosed for assessing electrode-tissue contact for tissue ablation. An exemplary electrode contact sensing system comprises an electrode | 11-06-2008 |
20110160584 | Acoustic coupling for assessment and ablation procedures - Acoustic coupling systems and methods are disclosed as these can be used for assessment and ablation procedures. An exemplary acoustic assessment system for a catheter may comprise a flexible catheter shaft. At least one acoustic transducer is positioned in the flexible catheter shaft. The at least one acoustic transducer emits a generated acoustic signal for reflection by adjacent tissue. The at least one acoustic transducer receives a reflected acoustic signal from the adjacent tissue and generates electrical signals corresponding to one or more property of the tissue. An output device is electrically connected to the at least one acoustic transducer. The output device receives the electrical signals and generate output for a user for assessing the tissue. | 06-30-2011 |
20110270046 | Optic-based contact sensing assembly and system - A contact sensing assembly including a catheter and an electrode including a tip portion and a base portion, and a generally central axis, with the electrode being connected to a distal end of the catheter. Optical sensor(s) may be provided for emitting and/or receiving an optical signal, with a part of the optical signal being transverse to the central axis. Optical interference member(s) may be provided for interfering with the optical signal. A method for sensing contact force exerted by an electrode on a tissue includes directing an optical signal along a portion of a catheter, emitting and/or receiving an optical signal, with a part of the optical signal being at a predetermined angle relative to the central axis, and sensing changes in intensity of the optical signal based on displacement associated with the electrode tip portion based on the contact force exerted by the electrode on the tissue. | 11-03-2011 |
20110276046 | Monitoring, Managing and/or Protecting System and Method for Non-Targeted Tissue - A monitoring, managing and protecting system is provided that includes a monitoring probe working in conjunction with an ablating device. The probe is configured to be positioned in close proximity to a region of non-targeted tissue proximate an ablation site of targeted tissue and to be operatively connected to an electrical response assessment system or component. The probe includes an elongate shaft having proximal and distal ends, with a handle disposed at the proximal end thereof and a tissue monitoring and protecting apparatus disposed at the distal end thereof. The ablating device includes an elongate shaft having proximal and distal ends, with a handle mounted at the proximal end thereof and an ablation element mounted at the distal end thereof. The monitoring probe measures electrical characteristics of the non-targeted tissue and/or of the tissue between the monitoring electrode and the ablation electrode. The electrical response assessment system determines whether the tissue is being damaged based on the electrical measurements. The monitoring, managing and protecting system can notify a practitioner based on the determination, or modify or stop the ablation procedure. | 11-10-2011 |
20120165809 | ABLATION ELECTRODE ASSEMBLIES AND METHODS FOR USING SAME - Ablation electrode assemblies include an inner core member and an outer shell surrounding the inner core member. The inner core member and the outer shell define a space or separation region therebetween. The inner core member is constructed from a thermally insulative material having a reduced thermal conductivity. In an embodiment, the space is a sealed or evacuated region. In other embodiments, irrigation fluid flows within the space. The ablation electrode assembly further includes at least one thermal sensor in some embodiments. Methods for providing irrigation fluid during cardiac ablation of targeted tissue are disclosed that include calculating the energy delivered to irrigation fluid as it flows within the ablation electrode assembly through temperature measurement of the irrigation fluid. Pulsatile flow of irrigation fluid can be utilized in some embodiments of the disclosure. | 06-28-2012 |
20120173217 | CATHETER CONFIGURATION INTERFACE AND RELATED SYSTEM - A system for implementing a procedure for the diagnosis or treatment of tissue in a body is provided. The system includes an electronic control unit configured to generate a graphical user interface on a display. The interface depicts an image of the tissue. The unit is further configured to receive one or more inputs regarding target locations on the tissue for diagnosis or treatment. The electronic control unit identifies a catheter for use in the procedure and determines configurations for a distal end of the catheter at each target location. The unit superimposes representations of the distal end of the catheter having the determined configurations on the image of the tissue at the target locations. The unit may also generate control signals to guide the distal end of the catheter to the target locations and to assume the determined configurations at each location. | 07-05-2012 |
20140094688 | Optic-based contact sensing assembly and system - The invention relates to an optic-based sensing assembly and a system incorporating the assembly and related use of the assembly. In particular, the invention relates to an optic-based catheter assembly and related system used to determine contact between a catheter and surrounding proximate environment, such as tissue. An embodiment of such a system may, for example, be used for visualization, mapping, ablation, or other methods of diagnosis and treatment of tissue and/or surrounding areas. | 04-03-2014 |
20140316756 | Catheter configuration interface and related system - A system for implementing a procedure for the diagnosis or treatment of tissue in a body is provided. The system includes an electronic control unit configured to generate a graphical user interface on a display. The interface depicts an image of the tissue. The unit is further configured to receive one or more inputs regarding target locations on the tissue for diagnosis or treatment. The electronic control unit identifies a catheter for use in the procedure and determines configurations for a distal end of the catheter at each target location. The unit superimposes representations of the distal end of the catheter having the determined configurations on the image of the tissue at the target locations. The unit may also generate control signals to guide the distal end of the catheter to the target locations and to assume the determined configurations at each location. | 10-23-2014 |
20140364848 | SYSTEM FOR OPTIMIZED COUPLING OF ABLATION CATHETERS TO BODY TISSUES AND EVAULATION OF LESIONS FORMED BY THE CATHETERS - A system for diagnosis or treatment of tissue in a body is provided. The system includes an ablation catheter having a deformable, elongate shaft having proximal and distal ends. The catheter further includes an ablation delivery member disposed proximate the distal end of the shaft and configured to deliver ablation energy to ablate the tissue. In one embodiment, the ablation delivery member comprises an ablation electrode and may also be configured to generate a signal indicative of electrical activity in the tissue. The catheter further includes one or more sensing electrodes disposed proximate the ablation delivery member. The sensing electrodes are configured to generate signals indicative of electrical activity in the tissue. The system further includes an electronic control unit configured to control delivery of ablation energy from the ablation delivery member responsive to one or more of the generated signals indicative of electrical activity in the tissue. | 12-11-2014 |