A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Systems and methods are provided for inserting an endoscope through an anatomical cavity to a target site. A speaker is positioned externally proximate to a patient and the endoscope is inserted into the anatomical cavity. A signal is received from at least one sensor positioned near the distal end of the endoscope. The signal is indicative of vibrations induced in internal cavity tissue by the externally positioned speaker. A first anatomical structure in contact with the distal end of the endoscope is identified based on the signal indicative of vibrations induced in the internal cavity tissue by the externally positioned speaker. As the distal end of the endoscope moves from the first anatomical structure into contact with other anatomical structures along a path to the target site, the received signal indicative of induced vibrations changes correspondingly and is used to guide the endoscope to the target site.

In a method, system and device a member is provided around an aneurysm enabling treatment and monitoring of the aneurysm. In accordance with one embodiment the device is adapted to be adjusted postoperatively. Hereby the treatment can be efficiently carried out without having to perform surgery when adjusting the member.

A method for detecting when a tool contacts a wall of a region of interest includes the steps of: tracking the motion of the tool and creating a tool motion profile; calculating a correlation value representative of the correlation between the tool motion profile and a wall motion profile indicative of the motion of the wall; and determining when the correlation value exceeds a threshold indicative of contact of the tool with the wall of the region of interest.

A medical display processing device and a method of reusing data includes acquiring, over time via electrodes, electrical signals each acquired via one of the electrodes and indicating electrical activity at a location of a portion of patient anatomy in a 3D space. Electrical signal data, corresponding to the electrical signals, is filtered according to first filter parameter settings and first mapping information is generated for displaying a map of the portion of patient anatomy and the filtered electrical signal data. An indication of a region of the portion of patient anatomy on the map is received and second mapping information is generated for displaying, at the region on the map, a portion of the electrical signal data previously filtered from display.

A robotic surgical system includes a track, a catheter holding device including a catheter receiving portion translatably associated with the track, a translation servo mechanism to control translation of the catheter holding device relative to the track, a catheter deflection control mechanism, a deflection servo mechanism to control the catheter deflection control mechanism, and a controller to control at least one of the servo mechanisms. The catheter receiving portion is adapted for quick installation and removal of a catheter. The catheter receiving portion may be rotatable, with a rotation servo mechanism to control the rotatable catheter receiving portion. The controller controls at least one of the deflection and rotation servo mechanisms to maintain a substantially constant catheter deflection as the catheter rotates. An introducer, which may be steerable, and an expandable, collapsible sterile tube may also be provided.

An ablation catheter Has a spring assembly residing between an ablation head and a proximal catheter body. Three optical fibers extend through a lumen in the catheter body. Three mirrors supported by the ablation head face proximally but are spaced distally from the optical fibers. The mirrors are provided with a pattern of reflectance that varies along a radius from a central area of reflectance. Light of a respective defined power shines from each of the optical fibers to a corresponding one of the mirrors with a reflected percentage of the respective defined light power being reflected back to the optical fiber. A percentage of the reflected percentage of the respective defined light power is captured by and travels along each optical fiber to a dedicated light wave detector connected to a controller. From the percentage of the reflected percentage of the light of the respective defined power received by each detector, the controller is programmed to calculate whether an axial or lateral force is imparted to the ablation head and, if so, the magnitude and vector of those forces.

A fastener for securing a medical or surgical line with respect to a patient, the fastener comprising: an elongate braided tubular sleeve for receiving the line therethrough, the sleeve having a variable length and being capable when lengthened of gripping the line, an attachment arrangement for attaching the sleeve to the patient, and a sensor mounted to the fastener, the sensor being arranged to sense at least one of a physiological parameter of the patient and a parameter in relation to the line.

A surgical apparatus is provided including an endoscope, a camera, a light source, and a structured light pattern source. The endoscope includes an elongate body having a plurality of segments manipulatable relative to one another. The camera, light source, and structured light pattern source cooperate to determine the topography of a surface within a patient. A method of performing surgery is also provided.

A medical device system and method for detecting dislodgement of a ventricular lead determines one or more characteristics of a cardiac signal received via the ventricular lead that are associated with dislodgement of the ventricular lead during atrial fibrillation, and detects dislodgement of the ventricular lead based on the determined characteristics. The medical device and system provides a lead dislodgment alert in response to detecting dislodgement. In some examples, an implantable medical device withholds delivery of a ventricular defibrillation therapy based on detecting dislodgement of the ventricular lead.