Abstract: A phacoemulsification apparatus includes an ultrasound transmitter, an irrigation-aspiration tool, a robotic arm, and a processor. The ultrasound transmitter is configured to generate and focus an ultrasound beam into a lens capsule of an eye of a patient, to emulsify a lens of the eye. The irrigation-aspiration tool having a distal end including an outlet of an irrigation channel for flowing irrigation fluid into the lens capsule, and an inlet of an aspiration channel for removing material from the lens capsule. The robotic arm is configured to move the distal end of the irrigation-aspiration tool inside the lens capsule. The processor is configured to control the ultrasound transmitter to irradiate one or more target locations in the eye capsule with the focused ultrasound beam, and control the robotic arm to move the distal end of the irrigation-aspiration tool in coordination with the target locations irradiated by the ultrasound transmitter.

Abstract: A phacoemulsification system, comprising: a handpiece comprising a piezoelectric element and a needle, the needle configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; circuitry configured to determine whether at least a distal tip of the needle is inside the eye or is outside the eye; and a processor, which is configured to receive a determination from the circuitry as to whether the distal tip of the needle is inside or outside the eye, and to control operation of at least the irrigation module according to the determination.

Abstract: A phacoemulsification system and an operation method thereof, the system including a handpiece having a piezoelectric element and a needle, wherein the needle is configured to be inserted into an eye and to be vibrated by the piezoelectric element to emulsify a lens of the eye; an irrigation module configured to supply a flow of irrigation fluid into the eye; an aspiration module configured for removing material from the eye; image capturing means for acquiring images which include the eye; an image analysis module configured to determine whether at least a distal tip of the needle is present in the captured images; and a processor, which is configured to receive a determination from the image analysis module as to whether the distal tip of the needle is present in the captured images, and to control operation of at least the irrigation module according to the determination.

Abstract: A phacoemulsification system, including a probe having an irrigation channel and an aspiration channel, and a distal end including a needle and a sleeve insertable into an eye. There is an irrigation pump pumping irrigation fluid via the irrigation channel into the eye, and an aspiration pump pumping aspiration fluid via the aspiration channel from the eye. A first pressure sensor is coupled with the irrigation fluid and provides a first signal of intraocular pressure (IOP) in the eye; a second pressure sensor is coupled with the aspiration fluid and provides a second signal of the IOP. A system processor receives the first and second signals, and responsively to at least one of the signals, identifies at least one frequency and an associated at least one phase of the IOP, and pumps at least one of the pumps at the identified frequency and in antiphase to the identified phase.

Abstract: A system includes an interface and a processor. The interface is configured to receive an electrogram acquired in a heart of a patient. The processor is configured to (i) estimate a level of injury current present in the electrogram, and (ii) based on the estimated level of injury current, decide whether to use the electrogram in a subsequent analysis.

Abstract: A guidewire, consisting of a flexible biocompatible tube, having a tube distal end, the tube containing an internal lumen and being configured to be inserted into an orifice of a body of a living subject. A planar resilient strip is inserted into the internal lumen, the strip having a strip proximal end and a strip distal end fixed to the tube distal end. A coil spring is fixed to the strip proximal end so that an axis of symmetry of the coil is coplanar with the strip, the coil spring containing a coil lumen. A wire is threaded through the coil lumen and has a termination fixed to the strip distal end, so that pulling on the wire causes the strip and the tube to bend.

Abstract: In one embodiment, a system includes a catheter including an insertion tube and a first position sensor, a pusher including a second position sensor, and an expandable assembly including flexible strips disposed circumferentially around a distal portion of the pusher, with first ends of the strips connected to the distal end of the insertion tube and second ends of the strips connected to the distal portion of the pusher, the flexible strips bowing radially outward when the pusher is retracted, processing circuitry to receive a respective position signal from the first and second position sensors, compute location and orientation coordinates for the position sensors subject to a constraint that the position sensors are coaxial and have a same orientation, compute a distance between the computed location coordinates of the position sensors, and find position coordinates of the flexible strips responsively to at least the computed distance.

Abstract: A medical system includes a catheter configured to be inserted into a body part of a living subject, and including a distal end comprising an electrode, and a processor configured to compute position coordinates of the electrode, and find a measure of proximity of the electrode to tissue of the body part responsively to the position coordinates of the electrode and position coordinates of a wall of an anatomical map of the body part.

Abstract: Apparatus, including an enclosure having a base and a cover with respective conductive layers. The conductive layers connect to form a shield attenuating electromagnetic radiation originating outside the enclosure in a range of 10 kHz-100 kHz by at least 20 dB within the enclosure. An adapter circuit within the enclosure processes electrophysiological signals to generate an output signal. A first connector passing through the enclosure connects to a probe to receive the electrophysiological signals and convey them to the adapter circuit. A second connector passing through the enclosure receives the output signal from the adapter circuit and conveys it to a console. A control input receives a control signal indicative of a frequency within the range, and a sensing circuit senses a magnetic field within the enclosure and outputs a warning signal when the magnetic field at the frequency indicated by the control signal exceeds a preset threshold.

Abstract: A medical system is configured to receive electrical signals responsive to electrical activity in myocardial tissue at respective locations on from each electrode of a first portion of a plurality of electrodes at a distal end of a catheter, determine a geometric center of the first portion of the plurality of electrodes, determine a focus of an arrhythmia, and output an indication of a spatial relationship between the geometric center and the focus. The first portion of the plurality of electrodes includes at least three electrodes, and the plurality of electrodes includes a second portion of electrodes distinct from the first portion and not in contact with myocardial tissue. The focus is determined based at least in part on the electrical signals from the electrodes of the first portion of the plurality of electrodes. An associated method is also described.

Abstract: A system includes a needle, an actuator assembly and a generator. The needle is configured to be vibrated so as to emulsify a lens of an eye. The actuator assembly, includes a first actuator, a second actuator and a third actuator, which are distributed around a longitudinal axis of the needle and are configured to vibrate along the longitudinal axis in response to a first driving signal, a second driving signal and a third driving signal, respectively. The generator is configured to generate the first driving signal, the second driving signal and the third driving signal, so as to vibrate the needle in accordance with a predefined pattern.

Abstract: A location pad includes multiple field-generators, a frame and a mounting fixture. The multiple field-generators are configured to generate respective magnetic fields in a region-of-interest of a patient body, for measuring a position of a medical instrument in the region-of-interest. The frame is configured to fix the multiple field-generators at respective positions surrounding the region-of-interest. The mounting fixture is configured to position the frame above the patient body.

Abstract: Medical apparatus includes a probe with a basket assembly at its distal end, including a plurality of resilient spines with multiple electrodes arrayed along a length of each of the spines. Processing circuitry is configured to acquire a first bipolar electrical signal from the tissue between first and second electrodes at first and second locations along a first spine of the basket assembly, and to acquire a second bipolar electrical signal from the tissue between the first electrode and a third electrode in a third location on a second spine of the basket assembly, and to interpolate, based on the first and second bipolar electrical signals, a vectorial electrical property of the tissue along an axis that passes through the first location and between the second and third locations.

Abstract: A system including first and second camera assemblies, and a processor. The first camera assembly includes a first camera producing, in a first imaging modality, a first image of an organ acquired from a first angle, and a first position sensor, producing a first position signal indicative of a first position and a first orientation, of the first camera. The second camera assembly includes a second camera, producing, in a second imaging modality, a second image of the organ acquired from a second angle, and a second position sensor, producing a second position signal indicative of a second position and a second orientation, of the second camera. The processor registers between the first and second images based on the first and second position signals and displays, based on the first and second images, a third image including a combination of at least part of the first and second images.

Abstract: A method, apparatus and computer program product, the method comprising: obtaining a plurality of electrical signals from a plurality of electrodes distally disposed on a catheter inserted into one or more chambers of a heart of a patient, wherein each electrode from at least some of the electrodes obtains electrical activity at a plurality of locations selectively accepting a portion of the plurality of electrical signals obtained; associating each electrode with a number of locations for which an electrical signal obtained by the electrode has been accepted; determining a selected part of the plurality of electrodes for which the number of locations is highest; and causing display of electrograms obtained by the selected part of the plurality of electrodes.

Abstract: A medical visualization apparatus includes two or more imaging devices, two or more robotic arms, multiple magnetic sensors coupled with the imaging devices, and a processor. The two or more imaging devices are configured to acquire images of an organ of a patient. The two or more robotic arms are configured to move the respective imaging devices. The multiple magnetic sensors are configured to output, in response to a magnetic field of a position tracking system, signals indicative of positions and viewing directions of the imaging devices. The processor is configured to estimate a position and a viewing direction of each of the imaging devices based on the signals, and, using the estimated positions and viewing directions, combine the images of the organ acquired by the imaging devices into a virtual reality (VR) image of the organ, and present the VR image to a user on a VR viewer.

Abstract: A method includes receiving a plurality of data points including electrophysiological (EP) values measured at respective positions in at least a portion of an organ of a patient. Some of the EP values are classified as outlier values in accordance with a defined criterion. A visual representation of at least the portion of the organ is derived from the plurality of data points. The visual representation represents the EP values with respective colors, and visualizes less than all the outlier values, by performing one or both of (a) identifying outlier values that deviate from respective neighboring EP values by less than a defined deviation, and representing the outlier values using colors that match the neighboring EP values, and (b) setting for the visual representation a mapping, which maps the EP values to the colors and which excludes at least some of the outlier values.

Abstract: A phacoemulsification probe includes an irrigation sleeve configured to fit over a hollow aspiration needle and a probe body, the irrigation sleeve to provide a fluid pathway for the flow of irrigation fluid between the needle and the walls of the irrigation sleeve, the sleeve having a distal end insertable into an incision made in an eye, the distal end having ports to release said irrigation fluid into said eye, where the walls of the irrigation sleeve have at least one anti-tortional element longitudinally placed along a length of the irrigation sleeve to provide structural support to prevent twisting of the sleeve and where the at least one anti-tortional element allows flattening of the irrigation sleeve for maneuvering of the sleeve within the eye while preserving the integrity of the incision.

Abstract: A phacoemulsification system includes a phacoemulsification probe, an aspiration tube and an irrigation tube. The aspiration tube is connectable to the phacoemulsification probe to aspirate a cataract from an eye. The irrigation tube is connectable to the probe and, in one embodiment, has at least one integrated compliant tube section at an end near the phacoemulsification probe. Each integrated compliant tube section is less than 1% of the length of the irrigation tube, has a section diameter larger than a tube diameter of the irrigation tube, and is more compliant than a cornea of the eye. In another embodiment, a compliant tube section is connectable to an end of the irrigation tube and to the probe and is formed of a material more compliant than the irrigation tube.

Abstract: A pumping system for a phacoemulsification system, consisting of: a phacoemulsification probe, an irrigation tube providing irrigation fluid into an eye, an irrigation pump pumping the irrigation fluid, an aspiration tube conveying aspiration fluid from the eye, an aspiration pump pumping the aspiration fluid from the eye, an aspiration pump sensor providing a first signal indicating activation of the aspiration pump, and a pressure sensor providing a second signal indicating intraocular pressure (IOP) in the eye. A controller receives the first signal and second signals, and in response controls the irrigation pump to alter a registered flow rate of the irrigation fluid to a preset adjusted flow rate until a threshold, dependent on at least one of a time of operation of the irrigation pump at the preset adjusted flow rate and the second signal, is crossed. When crossed the irrigation fluid is pumped at the registered flow rate.