Patent classifications
A61B2017/00185
Power parameters for ultrasonic catheter
In one embodiment of the present invention, a method of applying ultrasonic energy to a treatment site within a patient's vasculature comprises positioning an ultrasound radiating member at a treatment site within a patient's vasculature. The method further comprises activating the ultrasound radiating member to produce pulses of ultrasonic energy at a cycle period T1 second. The acoustic parameters such as peak power, pulse width, pulse repetition frequency and frequency or any combination of them can be varied non-linearly.
ASPIRATION DEVICES AND METHODS
An aspiration system includes a pump and a control system in communication with the pump. The control system includes a microcontroller, an antenna configured to receive a signal, and a pump control board in communication with the microcontroller. The antenna is in communication with the microcontroller. Upon receiving the signal, the pump control board operates the pump to create negative pressure according to the signal.
MOTOR ADJUSTMENTS IN ABSENCE OF MOTOR DRIVE SIGNAL
Disclosed is a surgical system, comprising an end effector configured to grasp tissue and provide therapeutic treatment to tissue. The surgical system further comprises a motor, a motor drive circuit, and a motor control circuit. The motor control circuit is configured to provide a motor drive signal to the motor drive circuit and adaptively control elements of the motor drive circuit to control deceleration of the motor in the absence of the motor drive signal. When the motor drive signal is present, the motor drive circuit can be configured to pass the motor drive signal through to the motor.
System For Effecting And Controlling Oscillatory Pressure Within Balloon Catheters For Fatigue Fracture Of Calculi
A dynamic balloon angioplasty system for applying a dynamic pressure to fracture hardened materials embedded within an elastic conduit. The system having a pressure source system outputting at least a first predetermined pressure from a pressure source outlet, and an angioplasty unit fluidly coupled to the pressure source outlet receiving at least the first predetermined pressure. The angioplasty unit having an angioplasty inflation device, an angioplasty balloon connector, and an oscillating mechanism selectively actuated to output a plurality of pressure pulses to the angioplasty balloon via a fluid communication path. A control system is configured to determine an optimal hydraulic pressure oscillation frequency and amplitude for a given procedure and output a control signal to the oscillating mechanism, and monitor a pressure signal to detect fracture of the hardened material within the elastic conduit or system failure or leakage.
Biased electrodes for improved tissue contact and current delivery
A medical probe, including a flexible insertion tube having proximal and distal ends, and a basket assembly at the distal end of the flexible insertion tube. In embodiments of the present invention, the basket assembly includes a plurality of spines and a plurality of electrodes, each of the electrodes having a lumen therethrough fitting a given spine.
MULTIPLE LASER WAVELENGTH TREATMENT DEVICE
A laser treatment system comprising a plurality of laser devices disposed on a cart, a combiner coupled to the plurality of laser devices, the combiner configured to combine a plurality of laser signals from the plurality of laser devices into a single conducting medium and a treatment head coupled to the conducting medium, the treatment head configured to deliver the plurality of laser signals to a predetermined location.
MEDICAL SKIN WRINKLE IMPROVEMENT DEVICE USING PEAK OF LASER PULSE WAVE
The present invention relates to a medical skin wrinkle improvement device using a peak of a laser pulse wave, and more specifically, to a medical skin wrinkle improvement device using a peak of a laser pulse wave, thereby lowering the degree of carbonization of a skin tissue having the laser irradiated thereon, thus enhancing a skin generation effect and shortening recovery time. The present invention comprises: a main body (100) which has formed on the upper part thereof a holding groove (110) having a tablet computer (200) attached/detached thereto, and which has mounted therein a controller (120) for controlling a hand piece (300) and the tablet computer (200); the hand piece (300) which comprises a laser oscillation unit (320), an optical unit (330) and a laser scanner, the laser oscillation unit (320) generating a laser to be irradiated for skin treatment, the optical unit (330) irradiating, as a parallel light, the laser generated by the laser oscillation unit (320), and the laser scanner adjusting the irradiation location of the laser transferred from the optical unit (330); and the tablet computer (200) which is provided with data input and screen display functions by means of a touch screen method, and which remotely controls the main body (100) through the transmission/reception of a bi-directional wireless signal.
Ultrasonic surgical instruments and methods of compensating for transducer aging
An ultrasonic surgical instrument includes a housing, a waveguide extending distally from the housing, an end effector coupled to the distal end of the waveguide, an ultrasonic transducer retained within the housing, and a controller. The ultrasonic transducer is coupled to the proximal end of the waveguide and configured to produce mechanical motion for transmission along the waveguide to the end effector. The controller is configured to control an amplitude of the mechanical motion of the ultrasonic transducer in accordance with at least one amplitude value. The at least one amplitude value is adjusted according to an age of the ultrasonic transducer to compensate for aging of the ultrasonic transducer. Methods for controlling the amplitude of the mechanical motion of an ultrasonic transducer to compensate for aging of the ultrasonic transducer are also provided.
SURFACE MOUNTED ELECTRODE CATHETER
In one embodiment, a medical system includes a catheter configured to be inserted into a body part of a living subject, and including an elongated deflectable element including a distal end, a proximal coupler connected to the distal end, an expandable assembly comprising a plurality of flexible polymer circuit strips, the flexible polymer circuit strips having respective proximal ends connected to, and disposed circumferentially around, the proximal coupler, respective ones of the flexible polymer circuit strips including respective multiple strip electrodes, respective contact arrays disposed at the respective proximal ends, and respective multiple circuit traces electrically connecting the respective multiple strip electrodes with the respective contact arrays, and a plurality of surface mountable electrodes mounted on, and bulging over respective ones of the flexible polymer circuit strips.
SINGLE DRIVING BUTTON CONTROL-TYPE ULTRASONIC SURGICAL APPARATUS AND METHOD FOR CONTROLLING ULTRASONIC OUTPUT USING SAME
The present invention relates to an ultrasonic wave surgery apparatus controlled by a single switch button and a control method of ultrasonic power using the same, where the an ultrasonic wave surgery apparatus controlled by a single switch button comprises: a body with an accommodating space therein, comprising: a grip that can be gripped by the user, and; an ultrasonic wave delivery unit which extends forward by a distance to allow for access to tissue; an transducer unit that is disposed in the accommodating space and which causes oscillations; an ultrasonic transducer unit disposed at the front end of the ultrasonic wave delivery unit and which comprises an end effector that is connected to the transducer unit and receives transmission of oscillations; a gripping unit disposed at the front end of the ultrasonic wave delivery unit and formed to allow variation of the distance thereof from the end effector, comprising an operating portion on the body to allow for control of the gripping portion; a start button disposed on the body and which causes an input signal according to controls by the user, and; a control portion which, if an input signal from the start button occurs once within a preset reference time duration and is sustained, operates the transducer unit at a first oscillation strength, and which, if an input signal from the start button occurs n times within a preset reference time duration and is sustained, operates the transducer unit at an n.sup.th oscillation strength.