Patent classifications
A61B2017/22024
SCANNING URETEROSCOPE FOR MAXIMIZING EFFICIENCY IN LASER LITHOTRIPSY
A surgical laser system comprises a laser source configured to generate laser energy; a laser fiber optically coupled to the laser source and configured to discharge the laser energy generated by the laser source; a rocker arm configured to control an orientation of the discharged laser energy; and a controller configured to control a movement of the rocker arm in response to feedback of the discharged laser energy or to pre-defined settings of the laser source.
Shock wave valvuloplasty device with moveable shock wave generator
A valvuloplasty system includes a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.
LASER-INDUCED FLUID FILLED BALLOON CATHETER
The present disclosure relates generally to the use of medical devices for the treatment of vascular conditions. In particular, the present disclosure provides devices and methods for using laser-induced pressure waves to disrupt vascular occlusions. The present disclosure not only provides devices and methods for using laser-induced pressure waves to disrupt vascular occlusions or portions thereof, but the present disclosure also provides devices and methods for disrupting calcium in the media and/or intima layer of an arterial wall.
Ultrasonic surgical instrument with features for forming bubbles to enhance cavitation
An ultrasonic element comprises an ultrasonic transducer and a head or blade. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The head or blade is in acoustic communication with the ultrasonic transducer such that the ultrasonic transducer is operable to drive the ultrasonic blade to vibrate ultrasonically. The head or blade has a curved distal face. The curved distal face defines a proximally extending concave curve. The transducer and head or blade may be driven using a control logic that is configured to cause the ultrasonic transducer to generate a first vibration set followed by a second vibration set. The first vibration set is configured to generate microbubbles in a fluid. The second vibration set is configured to grow microbubbles generated by the first vibration set. The control logic may provide a pause between the first vibration set and the second vibration set.
Ballistic shockwave focusing waveguide
A waveguide that is configured to focus ballistic shockwaves by harnessing the propagation speed of an acoustic wave through different materials by controlling the geometry and the materials forming the waveguide through which the ballistic shockwave is travelling so as to focus the ballistic shockwaves at a focal zone.
Feedback dependent lithotripsy energy delivery
A lithotripter is provided that includes a lithotripsy apparatus for treatment of a urinary tract stone by fragmentation. The lithotripsy apparatus includes a lithotripsy wave guide shaft configured to transmit an energy form to at least one urinary tract stone. The lithotripter includes a sensing device configured to provide signal data for determining optimal application of energy during treatment with the lithotripsy apparatus. The lithotripter includes a processor configured to collect the signal data and provide feedback to a user. The processor has a control logic configured to determine at least one of: a) if the lithotripsy wave guide shaft is in contact with a tissue; b) if the lithotripsy wave guide shaft is in contact with a stone; c) type of stone; d) if a user is applying force in excess of a predetermined threshold; and e) physical characteristics of a stone. A method is also provided.
Devices and methods for intrabody surgery
A method for conducting intrabody surgery by means of a surgical device having a cutting arrangement actuated by a driveshaft and rotationally supported by the guide wire. A receiving cannel extends through the cutting arrangement and movably receives the guidewire. A plurality of sensors is provided within the cutting arrangement to emit signals capable of changing parameters depending on the composition of the occlusion, so as to allow the control unit to generate signals controlling operation of the cutting arrangement. The method includes the steps of detecting parameters within the intrabody area by the sensors to controlling operation of the cutting arrangement with the power and control unit.
Method for replacement of heart valve
A method for implanting a replacement heart valve within a diseased valve includes accessing a patient's heart by piercing a myocardium, advancing a guidewire into the patient's heart, and installing an access device in a wall of the heart. The access device preferably has at least one valve mechanism. A valve delivery device is advanced over the guidewire and through the access device. The valve delivery device has a replacement heart valve disposed along a distal end portion thereof. The replacement heart valve preferably includes an outer support structure and a leaflet valve disposed within the outer support structure. The replacement heart valve is radially expanded within the diseased valve. During implantation, the outer support structure conforms to a diameter of the diseased valve and the leaflet valve expands to a fixed size having a diameter smaller than the diameter of the diseased valve.
Device for delivering mechanical waves through a balloon catheter
A device for delivering mechanical waves to treat a lesion present in a blood vessel, including a catheter extending between a first proximal end and a first distal end, an inflatable balloon secured to the catheter and being adjustable between an inflated configuration and a deflated configuration, and at least one mechanical waveguide extending between a second proximal end and a second distal end for propagating at least one mechanical wave from the second proximal end to the second distal, with the mechanical waveguide being secured to the inflatable balloon or the catheter.
Scanning ureteroscope for maximizing efficiency in laser lithotripsy
A surgical laser system comprises a laser source configured to generate laser energy; a laser fiber optically coupled to the laser source and configured to discharge the laser energy generated by the laser source; a rocker arm configured to control an orientation of the discharged laser energy; and a controller configured to control a movement of the rocker arm in response to feedback of the discharged laser energy or to pre-defined settings of the laser source.