СПОСОБ И СИСТЕМА ДЛЯ УДАЛЕНИЯ НЕЖЕЛАТЕЛЬНЫХ ОБРАЗОВАНИЙ В ТЕЛЕ МЛЕКОПИТАЮЩЕГО

... 1. Способ интракорпорального лечения для разрушения нежелательного образования в теле млекопитающего, включающий этапы, на которых ! a) берут зонд, выполненный с возможностью введения в тело млекопитающего и возможностью электрического соединения с блоком управления и имеющий рабочую головку, ! b) приводят передний конец рабочей головки в физический контакт с образованием, ! c) подают энергетические импульсы от блока управления на зонд в ходе по меньшей мере одного лечебного сеанса, ! d) подсчитывают число импульсов, поданных на зонд, ! e) определяют остаточный срок службы зонда путем вычитания числа импульсов, поданных на зонд, из числа импульсов, соответствующего изначальному сроку службы зонда, ! f) прекращают лечебный сеанс, если число поданных на зонд импульсов близко по меньшей мере к некоторой доле определенного остаточного срока службы зонда, ! g) сохраняют данные об определенном остаточном сроке службы зонда. ! 2. Способ по п.1, согласно которому энергетические импульсы определены ...

EQUIPMENT FOR ABLATION WITH BF

MEDICAL PROBE WITH MECHANISM FOR OPTICAL OBSERVATION

Medical probe device with optic viewing capability

Method of operating microsurgical instruments

FOOTSWITCH OPERABLE TO CONTROL A SURGICAL SYSTEM

... ²² A surgical footswitch that includes a base, a pedal, an encoder ²assembly, a wireless interface, and an internal power generator. The²pedal mounts upon the base and pivots. The encoder assembly couples to the ²pedal. ²As the pedal pivots, the encoder assembly translates the mechanical signal of ²the pedal ²into a control signal based on the pedals position and/or orientation. The ²wireless ²interface couples the encoder assembly to receive the control signal. The ²wireless ²interface also couples the surgical footswitch to a surgical console operable ²to control ²and direct surgical equipment. The wireless interface passes the control ²signal from ²the encoder to the surgical console, which then directs the surgical equipment ²based ²on the control signal. This wireless interface eliminates the tangle of wires ²or tethers, ²which may be a hazard in the surgical theater. The internal power generator ²translates ²footswitch movement into stored energy to eliminate potential failures of ...

TREATMENT OF DERMAL GLANDS BY THE APPLICATION OF NON-THERMAL ENERGY

Described herein are methods and apparatuses for reducing or eliminating skin glands (e.g., sebaceous, eccrine and apocrine) with an electric treatment. Also described herein are methods for treating and/or preventing a disorder of a skin gland. For example, described herein are methods of treating sebaceous hyperplasia.

MOTOR DRIVEN ELECTROSURGICAL DEVICE WITH MECHANICAL AND ELECTRICAL FEEDBACK

An electrosurgical device comprises an end effector, a cutting member, and en electromechanical driver. The end effector comprises a pair of jaws that clamp tissue. The jaws include electrodes that deliver RF energy to clamped tissue. The cutting member cuts tissue clamped between the jaws. The electromechanical driver drives the cutting member. A control module commands the electromechanical driver, and regulates the delivery of RF energy to the electrodes, based on a combination of user input and feedback signals from the electrodes and from the electromechanical driver. The device may provide tactile feedback to the user through the user input feature, based on a load encountered by the cutting member. The device may alert the user when the exterior of end effector makes incidental contact with tissue, to avoid inadvertently burning the tissue. The device may include a removable battery pack to power the electromechanical driver and the electrodes.

UVULA, TONSIL, ADENOID AND SINUS TISSUE TREATMENT DEVICE AND METHOD

An apparatus for ablating at least a portion of a uvula includes an electrode means with a proximal end, and an electrode means distal end sharpened sufficiently to pierce an exterior of the uvula without a retainer device supporting the uvula. An advancement and retraction means coupled to the electrode means is configured to advance the electrode means distal end through an exterior surface of the uvula and into an interior region of the uvula. The advancement and retraction means is configured to retract the electrode means distal end from the interior of the uvula. Handle means is coupled to the electrode means proximal end. Cabling means is coupled to the electrode means. The treatment is made by the use of RF energy. Aspiration and infusion means are provided.

Medical probe device with optical viewing

La présente invention concerne un dispositif à sonde médicale comprenant un cathéter (2) ayant un logement de guidage de stylet avec au moins une lumière de stylet sur son côté et des moyens de guidage de stylet (6) pour diriger un stylet souple (8) vers l'extérieur au travers d'au moins une lumière de stylet et au travers du tissu intermédiaire vers les tissus cibles, un stylet positionné dans au moins un desdits moyens de guidage de stylet et un moyen de vision optique disposé dans le logement de guidage de stylet ayant un champ de vision qui s'étend au moins à l'extrémité du logement de guidage de stylet. The present invention relates to a medical probe device comprising a catheter (2) having a stylet guide housing with at least one stylet lumen on its side and stylet guide means (6) for directing a flexible stylet (8) outwardly through at least one stylet lumen and through the intermediate tissue to the target tissues, a stylus positioned in at least one of said stylus guide means and an optical vision means disposed in the guide housing A stylus having a field of vision that extends at least to the end of the stylus guide housing.

ULTRASOUND CATHETER SYSTEM

An ultrasonic system operable at high drive frequencies and/or in pulsed operation is disclosed. The system may be used in a procedure to treat an occluded blood vessel. The system can be used to transmit ultrasonic energy from an ultrasonic transducer to a distal end of an ultrasonic transmission device. The ultrasonic device may operate at a resonant frequency. The resonant frequency can be determined prior to using the device and/or during use. The ultrasonic device may operate in a range of frequencies at or near resonance. Operational parameters including, for example, reflected vibrations, temperature, and/or user input can be used by the system to adjust the driving waveform.

RAPID PULSE PHACO POWER FOR BURN FREE SURGERY

Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing pulsed electrical power source for providing pulsed electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate. In addition, a separate input enables manual control of pulse amplitude and the control system in response to a selected amplitude determines a duty cycle of the provided pulsed electrical power.

APPARATUS AND PROCESS FOR LASER-ASSISTED DRILLING

Apparatus (2) and process of laser assisted drilling includes structure (22) and method for receiving laser energy (4) and projecting it onto an object to produce structural changes within the object (8). Structure (6) and method are also provided for mechanically abrading the structurally perturbed portions of the object. By combining laser and mechanical energy, drilling is quickly and accurately performed.

Ultrasound probe with thermal sensing

A medical probe apparatus comprising a catheter having a stylet guide housing with one or more stylet ports therein and stylet guides for directing one or more flexible stylets outward through respective stylet ports and through intervening tissue to target tissue. The active stylets emit radio frequency RF energy which establishes an RF current in the patient. The current, being densest at the stylet tips, causes heating of the surrounding tissue to initiate ablation of the target tissue. One aspect of the invention includes temperature sensing stylets at the location of the RF emitting stylets to monitor the temperature of the tissue being ablated. This allows the surgeon to have increased knowledge about the abating action under way in order to control the intensity of the applied RF current, or to adjust the amount of time the current is applied, or both. Further included herein is a plurality of temperature sensors mounted on an ultrasound probe to be used to monitor tissue temperature ...

Ultrasonic surgery apparatus

An ultrasonic surgery apparatus enabling smooth surgery. The ultrasonic apparatus is provided with an ultrasonic chip, a vibration inducing unit which induces ultrasonic vibration to the ultrasonic chip, an aspiration unit which aspirates tissue emulsified by vibration of the ultrasonic chip, a detection unit which detects a clogging condition of the ultrasonic chip, a footswitch, having a pedal, for emitting an output signal which is based on a depression amount or a depression position of the pedal, and a control unit which controls at least one of ultrasonic power and a pulse-duty ratio of the ultrasonic vibration based on the output signal from the footswitch and a detection result obtained by the detection unit.

Liquid ejection control device, liquid ejection system, and control method

In a liquid ejection control device, an ejection tube section type acquisition unit discriminates an ejection tube section type of an ejection tube section mounted in a main body section, and acquires a fitted correspondence relationship fitting the discriminated ejection tube section type. A voltage amplitude setting unit sets a voltage amplitude of a drive voltage waveform so as to cause kinetic energy to meet an energy instruction value input by using an energy dial based on a rising index value related to rising of the drive voltage waveform and a repetitive frequency instruction value input by using a repetitive frequency dial with reference to the fitted correspondence relationship.

METHOD FOR CONTROLLING AN ENERGY MODULE OUTPUT

A method for controlling an output of an energy module of a modular energy system. The energy module can comprise a plurality of amplifiers configured to generate a drive signal at a frequency range and a plurality of ports coupled to the plurality of amplifiers. The method includes determining to which port of the plurality of ports the surgical instrument is connected, selectively coupling an amplifier of the plurality of amplifiers to the port of the plurality of ports to which the surgical instrument is connected, and controlling the amplifier to deliver the drive signal for driving the energy modality to the surgical instrument through the port.

Method and apparatus for irradiating ultrasound into tissue

Verfahren zum Ansteuern eines Einstrahlungsmittels für die Einstrahlung von Ultraschall in ein Gewebe (16) mit einer vorgegebenen thermischen Wirkung (T) und einer vorgegebenen mechanischen Wirkung (M) in dem Gewebe (16), wobei nacheinander Ultraschallpulse (P) mit einer jeweiligen Pulsbreite (T1) eingestrahlt werden, und wobei ein Tastverhältnis (T1/T2) der Ultraschallpulse (P) in Abhängigkeit von der thermischen und der mechanischen Wirkung (T, M) des Ultraschalls eingestellt wird.

UVULA, TONSIL, ADENOID AND SINUS TISSUE TREATMENT DEVICE AND METHOD

An apparatus for ablating at least a portion of a uvula includes an electrode means with a proximal end, and an electrode means distal end sharpened sufficiently to pierce an exterior of the uvula without a retainer device supporting the uvula. An advancement and retraction means coupled to the electrode means is configured to advance the electrode means distal end through an exterior surface of the uvula and into an interior region of the uvula. The advancement and retraction means is configured to retract the electrode means distal end from the interior of the uvula. Handle means is coupled to the electrode means proximal end. Cabling means is coupled to the electrode means. The treatment is made by the use of RF energy. Aspiration and infusion means are provided.

MICRO-SURGICAL EQUIPMENT

CONTROLLING OF A PULSE DUTY CYCLE BY MANIPULATION OF A FOOT SWITCH

FAST PULSING CHAMFERING OEM FOR BURN-FREE SURGERY

FOOT SWITCH FOR A SURGICAL ARRANGEMENT

PULSED LASER SYSTEM

BEAM MULTIPLEXER FOR WRITING REFRACTIVE INDEX CHANGES IN OPTICAL MATERIALS

A refractive index writing system includes a pulsed laser source, an objective lens for focusing an output of the pulsed laser source to a focal spot in an optical material, and a scanner for relatively moving the focal spot with respect to the optical material along a scan region. A beam multiplexer divides the output of the laser source into at least two working beams that are focused to variously shaped focal spots within the optical material. A controller controls at least one of a temporal and a spatial offset between the focal spots of the working beams together with the relative speed and direction of the scanner for maintaining an energy profile within the optical material along the scan region above a nonlinear absorption threshold of the optical material and below a breakdown threshold of the optical materials.

FOOTSWITCH OPERABLE TO CONTROL A SURGICAL SYSTEM

The present invention provides a surgical footswitch that includes a base, a pedal, an encoder assembly, a wireless interface, and an internal power generator. The pedal mounts upon the base and pivots. The encoder assembly couples to the pedal. As the pedal pivots, the encoder assembly translates the mechanical signal o f the pedal into a control signal based on the pedals position and/or orientation. The wireless interface couples the encoder assembly to receive the control signal. The wireless interface also couples the surgical footswitch to a surgical console operabl e to control and direct surgical equipment. The wireless interface passes the control signal from the encoder to the surgical console, which then directs the surgical equipme nt based on the control signal. This wireless interface eliminates the tangle of wire s or tethers, which may be a hazard in the surgical theater. The internal power generator translates footswitch movement into stored energy to eliminate potential failures of th e footswitch during a procedure and overcome the need to replace batteries within the footswitch.

Local acupuncture treatment appts. - has oblong head with end aperture and contains laser diode unit (NL 20.11.78)

SYSTEM AND METHOD FOR SENDING OF ULTRASONIC POWER BEATEN USING CAVITATION EFFECT

Medical probe device with optic viewing capability

A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide housing has an optical viewing means positioned for viewing the stylet and adjacent structure which includes a fiber optic channel means for receiving a fiber optic viewing device. The fiber optic channel means can include a guide port means for directing longitudinal movement of a fiber optic device with respect to the stylet guide means in a viewing zone and a flushing liquid channel in the stylet guide housing having an exit port positioned to direct flushing liquid issuing therefrom across the end of a fiber optic device when positioned in the viewing zone. The optical viewing means can comprise a viewing window positioned in the stylet guide housing for viewing the stylet when it is directed outward ...

TERMINATING DRYING CYCLES BY MONITORING IMPEDANCE IN ELECTROSURGICAL SYSTEMS

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Dual channel RF delivery system

A method and an apparatus for delivering controlled heat independently on separate channels to perform ablation to treat benign prosthetic hypertrophy or hyperplasia (BPH). The dual channel power system provides independent control of radio frequency energy to each of two stylets protruding from a catheter into a human prostate through the urethra. The energy is independently transferred directly into the respective tissue around the stylets in such a manner as to provide respective tissue ablation without damage to surrounding tissues. Automatic shut-off of both channels occurs when any one of a number of surrounding areas to include the urethra or surrounding mass or the adjacent organs exceeds predetermined safe temperature limits. Automatic shut off of the individual channels occurs when the temperature of the tissue proximal to the respective stylet exceeds respective predetermined values. The dual channel system is microprocessor controlled and contains self-test startup and thermocouple autocalibration circuitry.

Method of operating microsurgical instruments

A method of operating a microsurgical instrument, such as a vitrectomy probe, is disclosed. The probe includes a port for receiving tissue and an inner cutting member. A flow of tissue is induced into the port with a vacuum source, and the member is actuated in a cyclic manner to open and close the port over a plurality of cut rates. A duty cycle of the member is varied with the cut rate to vary the flow of the tissue into the port. The method yields the ability to adjust flow rate into the probe and aperture of the probe for a given cut rate so as to effectively perform a wide variety of vitreoretinal surgical objectives.

COORDINATED ENERGY OUTPUTS OF SEPARATE BUT CONNECTED MODULES

Aspects of the present disclosure are presented for providing coordinated energy outputs of separate but connected modules, in some cases using communication protocols such as the Data Distribution Service standard (DDS). In some aspects, there is provided a communication circuit between a header or main device, a first module, and a second module, each including connection to a segment of a common backplane, where the output from a first module can be adjusted by sensing a parameter from a second module. In some aspects, the signal can pass from the first module through the header to the second module, or in other cases directly from the first module to the second module. Aspects of the present disclosure also include methods for automatically activating a bipolar surgical system in one or more of the modular systems using the DDS standard.

DRIVING A PHACOEMULSIFIER ACTUATOR

Methods and apparatuses provide a phacoemulsification probe, wherein the probe has a piezoelectric actuator coupled with a needle configured to be inserted into an eye of a patient; and a processor configured to sequentially drive the actuator electrically in a range of frequencies, to measure a respective electrical power input to the actuator at each of the frequencies in the range, to identify a frequency in the range of frequencies wherein a metric of the electrical power input is a maximum, and to estimate from the identified frequency a mechanical resonant frequency of the actuator, and to drive the actuator electrically at the mechanical resonant frequency.

Correction to measured tissue impedance to account for electrode temperature in electrosurgical systems

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

MICROSURGICAL INSTRUMENT

A pulsed laser system and method of operation

A pulsed laser system (500) capable of operating in a plurality of modes for delivering a burst of laser pulses to a target (506) wherein the pulse width of the laser pulses are automatically controlled in response to the mode selected. A special calibration procedure allows the system to determine the pulse width and pulse repetition rate when the laser (200) is producing a predetermined power output level as measured by a power meter at the target site. Using calibrated pulse width and pulse repetition rate, the pulse width and pulse repetition rate of the laser pulses to be delivered to the target (506) for any particular treatment burst can be determined.

УЛЬТРАЗВУКОВАЯ КАТЕТЕРНАЯ СИСТЕМА

FIELD: medicine. SUBSTANCE: system includes an elongated ultrasound device comprising a distal end and a proximal end, an ultrasonic actuator coupled to the proximal end of the transmitter and configured to actuate the transmitter in a pulsed mode. The pulse mode includes application of at least the first frequency during the first-time period and the second frequency during the second-time period. EFFECT: application of the system allows to increase the efficiency when transferring ultrasound to a hard tissue. 9 cl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 640 564 C2 (51) МПК A61B 17/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК A61B 17/22012 (2006.01); A61B 17/320016 (2006.01); A61N 7/022 (2006.01) (21)(22) Заявка: 2015106608, 01.08.2013 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): БАРД ПЕРИФЕРЭЛ ВАСКЬЮЛАР (US) Дата регистрации: 09.01.2018 02.08.2012 US 61/678,920 (43) Дата публикации заявки: 27.09.2016 Бюл. № 27 2007240154 A1, 03.01.2008. US 5163421 A, 17.11.1992. US 20060122591 A1, 08.06.2006. RU 2434579 C2, 27.05.2010. (45) Опубликовано: 09.01.2018 Бюл. № 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.03.2015 2 6 4 0 5 6 4 (56) Список документов, цитированных в отчете о поиске: US 5447509 A, 05.09.1995. AU Приоритет(ы): (30) Конвенционный приоритет: R U 01.08.2013 (72) Автор(ы): САРЖ Джефф (US), САММЕРС Майкл А. (US) US 2013/053306 (01.08.2013) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 4 0 5 6 4 WO 2014/022716 (06.02.2014) Адрес для переписки: 119019, Москва, Гоголевский бульвар, 11, этаж 3, "Гоулингз Интернэшнл Инк.", Е.В. Екимовой (54) УЛЬТРАЗВУКОВАЯ КАТЕТЕРНАЯ СИСТЕМА (57) Реферат: Изобретение относится к медицинской для приведения в действие передающего технике, а именно к системам для подачи устройства в импульсном режиме. Импульсный ультразвуковой вибрации. Система включает в режим включает применение по меньшей ...

Steerable medical probe with stylets

Vitrectomy surgical apparatus employing multisensor pressure feedback

A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a plurality of sensors provided at a plurality of points between the pressure source and the vitrectomy handpiece, and a controller configured to employ a function correlating a desired cut rate with a pressure source duty cycle and employ a different function when one sensor of the plurality of sensors senses a pressure outside a predetermined pressure range.

ELECTROSURGICAL SYSTEM

Various embodiments disclose an electrosurgical system for treating biological tissue. The electrosurgical system comprises: an electrosurgical generator configured to supply microwave energy; a surgical scoping device having a steerable insertion cord for minimally invasive insertion to a treatment site within a body; and an electrosurgical instrument dimensioned to fit within an instrument channel that is located within the insertion cord. The electrosurgical instrument comprises: a flexible coaxial cable arranged to convey the microwave energy; and a radiating tip portion connected at a distal end of the coaxial cable and configured to receive the microwave energy, wherein the radiating tip portion has a maximum outer diameter that is 1.0 mm or less, and wherein the maximum outer diameter of the radiating tip portion is smaller than an outer diameter of the coaxial cable. Also, the radiating tip portion comprises: a proximal coaxial transmission line for conveying the microwave energy ...

DEVICE FOR THE LOCAL TREATMENT OF A PATIENT AND MORE PARTICULARLY APPLICABLE IN ACUPUNCTURE AND AURICULOTHERAPY

FOOTSWITCH OPERABLE TO CONTROL A SURGICAL SYSTEM

A surgical footswitch that includes a base, a pedal, an encoder assembly, a wireless interface, and an internal power generator. The pedal mounts upon the base and pivots. The encoder assembly couples to the pedal. As the pedal pivots, the encoder assembly translates the mechanical signal of the pedal into a control signal based on the pedals position and/or orientation. The wireless interface couples the encoder assembly to receive the control signal. The wireless interface also couples the surgical footswitch to a surgical console operable to control and direct surgical equipment. The wireless interface passes the control signal from the encoder to the surgical console, which then directs the surgical equipment based on the control signal. This wireless interface eliminates the tangle of wires or tethers, which may be a hazard in the surgical theater. The internal power generator translates footswitch movement into stored energy to eliminate potential failures of the footswitch during ...

RAPID PULSE PHACO POWER FOR BURN FREE SURGERY

Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing pulsed electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate. In addition, a separate input enables manual control of pulse amplitude and the control system in response to a selected amplitude determines a duty cycle of the provided pulsed electrical power.

BHP ABLATION METHOD AND APPARATUS

A method and an apparatus (14) is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus (14), the energy is transferred directly into the tissue mass (6) which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shutoff occurs when any one of a number of surrounding areas to include the urethra (2) or surrounding mass or the adjacent organs (6) exceed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electro-surgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

BHP ABLATION METHOD AND APPARATUS

A method and an apparatus (14) is disclosed for deliv-ering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus (14), the energy is transferred directly into the tissue mass (6) which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shutoff occurs when any one of a number of surrounding areas to include the urethra (2) or surrounding mass or the adjacent organs (6) exceed pre-determined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electro-surgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hos-pitalization or surgery.

Eastern medical probe equipped with stylets

L'invention concerne une sonde médicale orientable équipée de stylets. Cette sonde comprend un cathéter possédant une extrémité de commande et une extrémité de sondage qui comprend des moyens de guidage d'un stylet, possédant une pointe flexible (14), une poignée (2) pourvue de moyens (76, 12) d'orientation et d'avance de cette pointe pour diriger le stylet vers un orifice et à travers des tissus, le stylet étant positionné dans les moyens de guidage comprenant un manchon non conducteur possédant un passage pour une électrode (20), qui se termine au niveau d'un orifice distal du manchon et dans lequel eut se déplacer l'électrode. Application notamment aux sondes à cathéter pour l'ablation thérapeutique de tissus dans le corps humain. The invention relates to a steerable medical probe equipped with stylets. This probe comprises a catheter having a control end and a probing end which comprises means for guiding a stylet, having a flexible tip (14), a handle (2) provided with means (76, 12) for orientation. and advancing this tip to direct the stylet to an orifice and through tissue, the stylet being positioned in the guide means comprising a non-conductive sleeve having a passage for an electrode (20), which terminates at the level of 'a distal orifice of the sleeve and in which the electrode had to move. Application in particular to catheter probes for the therapeutic ablation of tissues in the human body.

Medical probe device with optic viewing capability

BPH ABLATION METHOD AND APPARATUS

A method and an apparatus (14) is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus (14), the energy is transferred directly into the tissue mass (6) which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shutoff occurs when any one of a number of surrounding areas to include the urethra (2) or surrounding mass or the adjacent organs (6) exeed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electro-surgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

Ultrasonic surgery apparatus

An ultrasonic surgery apparatus enabling smooth surgery. The ultrasonic apparatus is provided with an ultrasonic chip, a vibration inducing unit which induces ultrasonic vibration to the ultrasonic chip, an aspiration unit which aspirates tissue emulsified by vibration of the ultrasonic chip, a detection unit which detects a clogging condition of the ultrasonic chip, a footswitch, having a pedal, for emitting an output signal which is based on a depression amount or a depression position of the pedal, and a control unit which controls at least one of ultrasonic power and a pulse-duty ratio of the ultrasonic vibration based on the output signal from the footswitch and a detection result obtained by the detection unit.

SURGICAL MODULAR ENERGY SYSTEM WITH FOOTER MODULE

A modular surgical system for use in a surgical procedure to treat tissue is disclosed. The modular surgical system includes a footer module including a power supply, a first surgical module configured to be stacked on top of the footer module, and a second surgical module configured to be stacked on top of the first surgical module. The first surgical module is detachably couplable to the footer module to receive power from the power supply of the footer module to generate a first therapeutic energy for delivery to the tissue. The second surgical module is detachably couplable to the first surgical module to receive power from the power supply of the footer module to generate a second therapeutic energy for delivery to the tissue.

Liquid ejection control device, liquid ejection system, and control method

In a liquid ejection control device, an operation unit includes an energy dial for inputting an energy instructing value related to kinetic energy of a pulsed liquid jet ejected from a liquid ejection device, and a repetitive frequency dial for inputting a repetitive frequency instructing value related to the number of times ejection of the pulsed liquid occurs per unit time. In addition, a controller includes a voltage magnitude setting section that sets voltage magnitude of the drive voltage waveform such that the kinetic energy becomes the energy instructing value, based on a rising index value related to rising of the drive voltage waveform and the repetitive frequency instructing value.

CLEANING SYSTEM AND METHOD FOR OPERATING THE CLEANING SYSTEM

The application relates to a cleaning system configured for cleaning of cavities filled with a liquid, including fragmentation, debridement, material removal, irrigation, disinfection, and decontamination. The cleaning system includes an electromagnetic radiation system and a liquid. A treatment handpiece irradiates the liquid within a cavity with a radiation beam, producing a first vapor bubble using first pulse, and, at a different location, a second vapor bubble using a second pulse. The pulse repetition time is adjusted to ensure efficacy, for example such that an onset time of the second vapor bubble is within the first contraction phase of the first vapor bubble, when the first vapor bubble has contracted from its maximal volume to a size in a range from about 0.7 to about 0.1 of the maximal volume.

HRUNG FÜR VERBRENNUNGSFREIE CHIRURGIE

LASER CONTROL DEVICE WITH INTERVAL TIMER

DEVICE FOR THE IRRADIATION OF ULTRASONIC IN FABRICS

CONDUCTIBLE MEDICAL PROBE WITH STILETTE

Footswitch operable to control a surgical system

Re: 2707 US F ess Mail EV 676196989 US FOOTSWITCH OPERABLE TO CONTROL A SURGICAL SYSTEM 5 The present invention provides a surgical footswitch that includes a base, a pedal, an encoder assembly, a wireless interface, and an internal power generator. The pedal mounts upon the base and pivots. The encoder assembly couples to the pedal. As the pedal pivots, the encoder assembly translates the mechanical signal of the pedal into a control signal based on the pedals position and/or orientation, The wireless 10 interface couples the encoder assembly to receive the control signal. The wireless interface also couples the surgical footswitch to a surgical console operable to control and direct surgical equipment. The wireless interface passes the control signal from the encoder to the surgical console, which then directs the surgical equipment based on the control signal. This wireless interface eliminates the tangle of wires or tethers, 15 which may be a hazard in the surgical theater. The internal ...

Modulated pulsed ultrasonic power delivery system and method

Modulated pulsed ultrasonic power delivery system and method

MODULATED PULSED ULTRASONIC POWER DELIVERY SYSTEM AND A method for providing modulated ultrasonic energy to an ocular region during a phacoemulsification procedure, the method comprising: applying ultrasonic energy to the 5 ocular region using at least one modulated energy period, wherein each modulated period comprises: applying first ultrasonic energy to the ocular region using a high energy pulse for a first period of time; and subsequently applying second ultrasonic energy to the ocular region after applying first ultrasonic energy, said second ultrasonic energy applied using a low nonzero energy pulse having magnitude lower than said relatively high energy pulse 10 for a second period of time. Fig. I ...

ULTRASOUND-MEDIATED INDUCEMENT, DETECTION, AND ENHANCEMENT OF STABLE CAVITATION

SYSTEM AND METHOD FOR PULSED ULTRASONIC POWER DELIVERY EMPLOYING CAVITATION EFFECTS

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering energy during a surgical procedure, including applying energy at a level and for a time period sufficient to induce transient cavitation, and reducing applied energy after applying energy during a second nonzero lower energy period.

FOOTSWITCH OPERABLE TO CONTROL A SURGICAL SYSTEM

A surgical footswitch that includes a base, a pedal, an encoder assembly, a wireless interface, and an internal power generator. The pedal mounts upon the base and pivots. The encoder assembly couples to the pedal. As the pedal pivots, the encoder assembly translates the mechanical signal of the pedal into a control signal based on the pedals position and/or orientation. The wireless interface couples the encoder assembly to receive the control signal. The wireless interface also couples the surgical footswitch to a surgical console operable to control and direct surgical equipment. The wireless interface passes the control signal from the encoder to the surgical console, which then directs the surgical equipment based on the control signal. This wireless interface eliminates the tangle of wires or tethers, which may be a hazard in the surgical theater. The internal power generator translates footswitch movement into stored energy to eliminate potential failures of the footswitch during ...

Modulated pulsed ultrasonic power delivery system and method

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

Local acupuncture treatment appts. - has oblong head with end aperture and contains laser diode unit (NL 20.11.78)

Device to medical probe device with optical viewing.

MEDICAL PROBE DEVICE WITH OPTIC VIEWING CAPABILITY

A medical probe device comprising a catheter (2) having a stylet guide housing (6) and a stylet guide means for directing a flexible stylet (8) outward through intervening tissue to targeted tissues. The stylet guide housing has an optical viewing means (14) positioned for viewing the stylet and adjacent structure which includes a fiber optic channel means. The fiber optic channel means can include a guide port means for directing longitudinal movement of a fiber optic device with respect to the stylet guide means in a viewing zone and a flushing liquid channel (64) in the stylet guide housing having an exit port positioned to direct flushing liquid issuing therefrom across the end of a fiber optic device when positioned in the viewing zone. The optical viewing means can comprise a viewing window (84) positioned in the stylet guide housing. The optical viewing means can include a fiber optic channel in the stylet guide housing for receiving the fiber optic viewing device, and aligning the ...

DEVICE FOR TREATING BODILY SUBSTANCES

The invention concerns a device for treating bodily substances, in particular for intraocular cataract surgery, said device comprising a laser beam source, for example, an erbium YAG laser, which produces pulsed laser radiation at wavelengths in the infrared range. A control device comprises a first arrangement (38, 48) by means of which an acceptable range for the pulse energy and/or pulse length and/or pulse frequency can be predetermined before an operation, and a second arrangement (34, 36, 40, 42) by means of which the pulse energy and/or pulse length and/or pulse frequency can be adjusted to a given value or values within the predetermined range during the operation.

Medical probe device with optical viewing capability

A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide housing has an optical viewing means positioned for viewing the stylet and adjacent structure which includes a fiber optic channel means for receiving a fiber optic viewing device. The fiber optic channel means can include a guide port means for directing longitudinal movement of a fiber optic device with respect to the stylet guide means in a viewing zone and a flushing liquid channel in the stylet guide housing having an exit port positioned to direct flushing liquid issuing therefrom across the end of a fiber optic device when positioned in the viewing zone. The optical viewing means can comprise a viewing window positioned in the stylet guide housing for viewing the stylet when it is directed outward ...

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.

PULSING AT THE END OF THE DRYING CYCLE IN ELECTROSURGICAL SYSTEMS

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Motor driven electrosurgical device with mechanical and electrical feedback

An electrosurgical device comprises an end effector, a cutting member, and en electromechanical driver. The end effector comprises a pair of jaws that clamp tissue. The jaws include electrodes that deliver RF energy to clamped tissue. The cutting member cuts tissue clamped between the jaws. The electromechanical driver drives the cutting member. A control module commands the electromechanical driver, and regulates the delivery of RF energy to the electrodes, based on a combination of user input and feedback signals from the electrodes and from the electromechanical driver. The device may provide tactile feedback to the user through the user input feature, based on a load encountered by the cutting member. The device may alert the user when the exterior of end effector makes incidental contact with tissue, to avoid inadvertently burning the tissue. The device may include a removable battery pack to power the electromechanical driver and the electrodes.

Vitrectomy surgical apparatus employing multisensor pressure feedback

A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a plurality of sensors provided at a plurality of points between the pressure source and the vitrectomy handpiece, and a controller configured to employ a function correlating a desired cut rate with a pressure source duty cycle and employ a different function when one sensor of the plurality of sensors senses a pressure outside a predetermined pressure range.

BPH ablation method and apparatus

Medical probe apparatus with laser and/or microwave monolithic integrated circuit probe

METHOD OF OPERATING MICROSURGICAL INSTRUMENTS

L'invention concerne un procédé de fonctionnement d'un instrument microchirurgical, tel qu'une sonde de vitrectomie (10). Ladite sonde comprend un orifice (16) permettant d'accueillir un tissu et un élément coupant interne (14). Un flux de tissu est amené dans l'orifice au moyen d'une source de vide, et l'élément est actionné de manière cyclique afin d'ouvrir et de fermer l'orifice selon plusieurs vitesses de découpe. On fait varier un cycle de travail de l'élément avec la vitesse de découpe pour faire varier le flux de tissu dans l'orifice. Le procédé permet d'adapter le débit du flux dans la sonde et l'ouverture de la sonde pour une vitesse de découpe donnée, de manière à réaliser efficacement une large diversité d'objectifs chirurgicaux vitréo-rétiniens.

ROBOTIC SURGICAL APPARATUS AND FLUID EJECTING APPARATUS FOR ROBOTIC SURGICAL APPARATUS

A robotic surgical apparatus including a robot arm portion, an operation portion that receives an input by a user, and a tool control portion configured to operate the robot arm portion based on the input which the operation portion receives from a user. The robotic surgical apparatus includes a fluid chamber, a pulsating flow-provision portion configured to provide a fluid within the fluid chamber with a pulsating flow, a fluid ejection tube which includes a fluid ejection port for ejecting a fluid, a fluid supply portion which supplies a fluid to the fluid chamber, and a fluid ejection control portion which controls the pulsating flow-provision portion. The fluid ejection tube is mechanically fixed to the robot arm portion, and the fluid ejection control portion is configured such that the ejection amount of a fluid per unit time is changed in accordance with the movement speed of the fluid ejection port.

METHOD FOR CONTROLLING MASSAGE APPARATUS AND MASSAGE APPARATUS

A method for controlling massage apparatus and a massage apparatus are provided. The method includes presetting multiple temperature modes of infrared hot compress and a number of pulses corresponding to the multiple temperature modes; receiving the temperature mode (S 21 ) selected by a user; outputting a pulse corresponding to the selected temperature mode to make the infrared hot compress operate in the temperature mode (S 21 ) corresponding to the pulse. The temperature of the infrared hot compress may be regulated by this method.

TERMINATING DRYING CYCLES BY MONITORING CURRENT IN ELECTROSURGICAL SYSTEMS

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

EVALUATION OF CONSUMED ENERGY IN ELECTROSURGICAL SYSTEMS

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

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 40 at a treatment site within a patient's vasculature. The method further comprises activating the ultrasound radiating member 40 to produce pulses of ultrasonic energy at a cycle period T ≤ 1 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.

УЛЬТРАЗВУКОВАЯ КАТЕТЕРНАЯ СИСТЕМА

... 1. Терапевтическая система для подачи ультразвуковой вибрации, содержащая:удлиненное передающее ультразвук устройство, которое характеризуется наличием дистального конца и проксимального конца; иультразвуковой привод, присоединенный к проксимальному концу передающего устройства и сконфигурированный для приведения в действие передающего устройства в импульсном режиме.2. Система по п. 1, в которой импульсный режим характеризуется рабочим циклом, составляющим приблизительно 50%.3. Система по п. 1, в которой импульсный режим характеризуется рабочим циклом, составляющим приблизительно 60-70%.4. Система по п. 1, в которой импульсный режим характеризуется рабочим циклом, составляющим приблизительно 30-40%.5. Система по п. 1, в которой импульсный режим характеризуется рабочим циклом, который оптимизирован для конкретного субстрата окклюзии.6. Система по п. 1, в которой импульсный режим включает применение, по меньшей мере, первой частоты в течение первого периода времени и второй частоты в течение ...

System and method for pulsed ultrasonic power delivery employing cavitation effects

Control of pulse duty cycle based upon footswitch displacement

METHOD FOR CONTROLLING MASSAGE DEVICE AND MASSAGE DEVICE

Device for treating bodily substances

A device for treating bodily substances, in particular for intraocular cataract surgery, said device comprising a laser beam source, for example, an erbium YAG laser, which produces pulsed laser radiation at wavelengths in the infrared range. A control device comprises a first arrangement (38, 48) by means of which an acceptable range for the pulse energy and/or pulse length and/or pulse frequency can be predetermined before an operation, and a second arrangement (34, 36, 40, 42) by means of which the pulse energy and/or pulse length and/or pulse frequency can be adjusted to a given value or values within the predetermined range during the operation.

Fussschalter für eine chirurgische Anordnung

Modulated pulsed ultrasonic power delivery system and method

Footswitch operable to control a surgical system

Method, apparatus and kit for thermal suture cutting

Abstract A novel suture removal instrument, kit and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. 5 Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient 10 discomfort and at a competitive or lower cost.

Variable repetition rate picosecond laser

CONTROL OF PULSE DUTY CYCLE BASED UPON FOOTSWITCH DISPLACEMENT

... ²²²Phacoemulsification apparatus includes a phacoemulsification handpiece having ²a needle and an electrical circuitry for ultrasonic vibrating the needle. A ²power source provides pulsed electrical power to the handpiece electrical ²circuitry and an input is provided for enabling a surgeon to select an ²amplitude of dislighted pulses and a pulse width. A control system and pulse ²duty cycle is provided for controlling the off duty cycle to insure heat ²dissipation before a subsequent pulse is activated, including a foot pedal ²switch.² ...

DISPOSITIF DE TRAITEMENT LOCAL D'UN PATIENT, NOTAMMENT POUR ACUPUNCTURE OU AURICULOTHERAPIE

L'invention concerne le traitement local externe d'un patient par apport d'énergie. Une tête de traitement 1 est constituée d'un corps allongé se terminant par un orifice de traitement 5. Elle comporte un dispositif à diode laser 10 susceptible de produire un faisceau par l'orifice de traitement Un ensemble d'alimentation 9 est couplé à cette tête de traitement. Il peut fournir au dispositif à diode laser une tension de 12 volts pour la détection ou de 100 volts pour le traitement. Un oscillateur 32 définit une fréquence de récurrence choisie parmi huit valeurs possibles, et susceptible d'une correction de + ou - 20 %. Chaque impulsion de récurrence fournie par l'oscillateur 32 est transmise à un générateur de train d'impulsions 34 qui fournit à chaque fois vingt impulsions ou quatre impulsions, lesquelles sont traduites en autant d'impulsions d'énergie lumineuse par le dispositif comprenant la diode laser 10. Application notamment an acupuncture et en auriculothérapie.

Local acupuncture treatment appts. - has oblong head with end aperture and contains laser diode unit (NL 20.11.78)

Appts. is for local treatment of a patient by acupuncture or auricular therapy by means of a treatment head connected to a supply unit. The head (1) is an oblong body ending in a treatment aperture (5), and contains a laser diode unit (10) whose illuminating end works with the aperture. The supply unit has means for controlling the supply to the diodes. The head body can be cylindrical, ending in a truncated cone section (3) and finally in a cylindrical one (4) of small dia., in which the aperture is incorporated. The diode is mounted in the truncated cone section.

LASER ANGIOPLASTY

A laser therapy system (10) having improved effectiveness in surgical use, particularly in laser angioplasty, can be formed by employing a pulsed source of radiation. The pulsed energy source is preferably an excimer laser (14) having a coherent beam of ultraviolet radiation and preferably is employed in conjunction with a dye laser (20) to produce an output beam which is tunable over a wide portion of the ultraviolet and visible spectrum. The output beam is coupled via a novel coupling device to an optical fiber (48) disposed within a surgical instrument, for example, a percutaneous catheter (80). The operative components are sealed in gas-tight, liquid-tight housing (12). An electronic controller (46) monitors and adjusts the output energy density, duration, and pulse repetition rate. In operation, a pulsed, high energy beam of extremely short duration is available to remove atherosclerotic plaque with less damage to the underlying tissue and less chance of perforating the blood vessel ...

Method, apparatus, and kit for thermal suture cutting

A novel suture removal instrument, kit and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient discomfort and at a competitive or lower cost.

Modulated pulsed ultrasonic power delivery system and method

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

System, method and computer-accessible medium for in-vivo tissue ablation and/or damage

Systems, methods and computer-accessible mediums can be provided that can establish particular parameters for electric pulses based on a characteristic(s) of the tissue(s), and control an application of the electric pulses to tissue(s) for a plurality of automatically controlled and separated time periods to ablate the tissue(s) through mediation of membrane potential and through inducing the cells through a plurality of charge-discharge cycles such that an electroporation of a majority of the tissue(s) is prevented or reduced.

Method for controlling a modular energy system user interface

A method for controlling a user interface of a modular energy system. The modular energy system comprises a header module and a display screen on which the user interface is displayed. The modular energy system can detect attachment of a first module thereto, control the user interface to display one or more first user interface elements corresponding to the first module, detect attachment of a second module to the modular energy system, control the user interface to resize the one or more first user interface elements to accommodate display of one or more second user interface elements corresponding to the second module, and control the user interface to display the one or more second user interface elements. The various UI elements can correspond to the particular module type that is being connected to the modular energy system.

Energy module for drivig multiple energy modalities through a port

An energy module connectable to a surgical instrument is disclosed. The energy module can include a circuit, which can include a first amplifier and a second amplifier coupled to a port of the energy module to which a surgical instrument is connectable. The first amplifier can be configured to generate a first drive signal at a first frequency range and the second amplifier can be configured to generate a second drive signal at a second frequency range. The circuit can be configured to control the amplifiers to deliver the first drive signal, the second drive signal, and/or a combination of the first and second drive signals to a surgical instrument connected to the port.

Methods and devices for ultrasound contrast-assisted therapy

Various methods of performing ultrasound contrast assisted therapy are provided. One such method includes delivering a plurality of microbubble-based ultrasound contrast agents to a target area and disrupting the microbubble-based ultrasound contrast agents by delivering tone bursts of ultrasound to the target area. The oscillation of the microbubble-based ultrasound contrast agents can be achieved by delivering ultrasound tone bursts of greater than 5 acoustic cycles with a pulse repetition frequency of between 0.01 and 20 Hz, with pressure greater than 0.3 MPa.

Ultrasound catheter system

A method of recanalizing a lumen of a vessel includes positioning an ultrasonic device having a distal end in a first position within the lumen of the vessel; transmitting pulsed ultrasonic vibrations though the ultrasonic device to the distal end; and advancing the distal end through the lumen to recanalize the vessel.

SYSTEM, METHOD AND COMPUTER-ACCESSIBLE MEDIUM FOR IN-VIVO TISSUE ABLATION AND/OR DAMAGE

Systems, methods and computer-accessible mediums can be provided that can establish particular parameters for electric pulses based on a characteristic(s) of the tissue(s), and control an application of the electric pulses to tissue(s) for a plurality of automatically controlled and separated time periods to ablate the tissue(s) through mediation of membrane potential and through inducing the cells through a plurality of charge—discharge cycles such that an electroporation of a majority of the tissue(s) is prevented or reduced. 1. A non-transitory computer-accessible medium having stored thereon computer-executable instructions for ablating at least one tissue , wherein , when a computer hardware arrangement executes the instructions , the computer arrangement is configured to perform procedures comprising:establishing particular parameters for electric pulses based on at least one characteristic of at least one tissue; andcontrolling an application of the electric pulses to the at least one tissue for a plurality of automatically controlled and separated time periods to ablate the at least one tissue such that a substantial electroporation of a majority of the at least one tissue is at least one of prevented or reduced.221-. (canceled)22. A method for ablating at least one tissue , comprising:using a computer hardware arrangement, establishing particular parameters for electric pulses based on at least one characteristic of the at least one tissue; andcontrolling an application of the electric pulses to the at least one tissue for a plurality of automatically controlled and separated time periods to ablate the at least one tissue such that an electroporation of majority of the at least one tissue is at least one of prevented or reduced.23. The method of claim 22 , wherein the electric pulses include at least one waveform.24. The method of claim 23 , wherein the at least one waveform is based on at least one of (i) an applied voltage of the electric pulses claim 23 ...

LITHOPLASTY DEVICE WITH ADVANCING ENERGY WAVEFRONT

The present invention is directed toward a method for treating a vascular lesion within or adjacent to a vessel wall. The method includes the steps of generating energy with an energy source; receiving the energy with a plurality of energy guides; and controlling the energy source with a system controller of a catheter system so that the energy from the energy source is sequentially directed to each of the plurality of energy guides in a first firing sequence. The method can include the system controller controlling a firing rate of the energy source to each of the plurality of energy guides. The method can include the system controller controlling a firing sequence to the plurality of energy guides so that an advancing wavefront is generated toward the vascular lesion from near a balloon proximal end and/or from near a balloon distal end. The system controller can control a firing energy level, which can be dependent at least partially upon the pulse width, the wavelength and/or the amplitude of the energy pulses. 1. A method for treating a vascular lesion within or adjacent to a vessel wall , the method comprising the steps of:generating light energy with an energy source;receiving the light energy with a plurality of energy guides; andcontrolling the energy source with a system controller of a catheter system so that the light energy from the energy source is sequentially directed to each of the plurality of energy guides in a first firing sequence.2. The method of wherein the step of controlling includes the system controller controlling a firing rate of the energy source to each of the plurality of energy guides.3. The method of wherein the step of controlling includes the system controller controlling the energy source so that light energy from the energy source is alternatively directed to each of the plurality of energy guides at a first firing rate and a second firing rate that is different than the first firing rate.4. The method of wherein the step of ...

Modulated pulsed ultrasonic power delivery system and method

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

FLUID EJECTION METHOD AND FLUID EJECTION DEVICE

A fluid ejection method includes: supplying fluid at a predetermined fluid supply flow rate to a pressure chamber; generating a pulsed flow by varying the volume of the pressure chamber at a predetermined frequency; and ejecting the pulsed flow, wherein the fluid supply flow rate is proportional to the frequency. 16.-. (canceled)7. A fluid ejection device comprising:a fluid supplying unit configured to supply fluid to a pressure chamber;a pulsed flow generating unit configured to generate a pulsed flow by varying a volume of the pressure chamber;a controller configured to control the fluid supplying unit and the pulsed flow generating unit,wherein the controller control the fluid supplying unit to increase a fluid supply flow when a voltage of a drive waveform supplied to the pulsed flow generating unit is increased.8. The fluid ejection device according to claim 7 , whereinthe controller control the fluid supplying unit to increase the fluid supply flow when a drive frequency of the pulsed flow generating unit is increased.9. The fluid ejection device according to claim 8 , whereinthe drive waveform includes a voltage rise part, a voltage drop part and a pause part,the controller changes a length of the pause part when the drive frequency is changed.10. The fluid ejection device according to claim 8 , whereinthe fluid supply flow rate is equal to or more than the product of a displacement volume of fluid discharged from the pressure chamber and the drive frequency.11. A control unit configured to control a fluid ejection device comprising a fluid supplying unit supplying fluid to a pressure chamber and a pulsed flow generating unit varying a volume of the pressure chamber claim 8 , comprisinga controller configured to control the fluid supplying unit and the pulsed flow generating unit,wherein the controller control the fluid supplying unit to increase a fluid supply flow when a voltage of a drive waveform supplied to the pulsed flow generating unit is increased.12 ...

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 T≤1 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. 1. An ultrasound catheter system comprising:a catheter having at least one ultrasonic element, wherein the catheter is configured to be advanced to a treatment site in a patient's vascular system; anda control system configured to generate power parameters that drive the at least one ultrasonic element to generate ultrasonic energy,wherein the control system is configured to implement a non-linear protocol in a control routine to vary non-linearly at least one of the power parameters and a physiological parameter of the at least one ultrasonic element.2. The system of claim 1 , wherein the power parameters comprise at least one of peak power claim 1 , pulse repetition frequency claim 1 , pulse width claim 1 , duty cycle claim 1 , pulse average acoustic power claim 1 , time average acoustic power claim 1 , peak rarefactional pressure claim 1 , spatial peak pulse average intensity claim 1 , and spatial peak time average intensity claim 1 , or any combination of aforementioned power parameters claim 1 , and the at least one physiological parameter comprises at least one of mechanical index and soft tissue thermal index claim 1 , or any combination of the aforementioned physiological parameter.3. The system of claim 1 , wherein the at least one power parameter and the at least one physiological parameter are varied randomly between a maximum value and a minimum value.4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. A control ...

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 T≤1 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. 1. An ultrasound catheter system comprising:a catheter having at least one ultrasonic element;a control system configured to generate power parameters that drive the at least one ultrasonic element to generate ultrasonic energy;wherein the control system is configured to implement a non-linear protocol in a control routine to vary non-linearly at least one of the power parameters of the at least one ultrasonic element, wherein the power parameter is selected from the group consisting of peak power, pulse repetition frequency, pulse width, and pulse repetition interval.2. (canceled)3. The system of claim 1 , wherein the at least one acoustic parameter is varied randomly between a maximum value and a minimum value.4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. A control system for an ultrasound catheter comprising a control unit configured to non-linearly vary a power parameter of an ultrasonic element of an ultrasonic catheter claim 1 , wherein the power parameter is selected from the group consisting of peak power claim 1 , pulse repetition frequency claim 1 , pulse width claim 1 , and pulse repetition interval.10. (canceled)11. The control system of claim 9 , wherein the power parameter is configured to be varied randomly between a maximum value and a minimum value.12. An ultrasound therapeutic system comprising:an ultrasonic delivery device having at least one ultrasonic element; anda control system configured to ...

MODULATED PULSED ULTRASONIC POWER DELIVERY SYSTEM AND METHOD

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period. 18-. (canceled)9. A surgical apparatus , comprising:a controller; anda surgical handpiece configured to receive commands from a controller and apply modulated ultrasonic energy to a surgical area of a patient in a plurality of short burst periods, said short burst periods comprising a relatively high energy burst period followed a predetermined time thereafter by a nonzero relatively low energy burst period.10. The apparatus of claim 9 , wherein said surgical handpiece applying modulated ultrasonic energy tends to induce transient cavitation within the surgical environment.11. The apparatus of claim 10 , wherein said surgical handpiece comprises piezoelectric crystals configured to deliver ultrasonic energy via the surgical handpiece in said plurality of short burst periods interspersed by multiple de minimis power application periods.12. The apparatus of claim 13 , wherein said predetermined time is essentially zero.13. The apparatus of claim 13 , wherein said surgical handpiece is configured to further provide a subsequent nonzero relatively low energy burst period.14. The apparatus of claim 13 , wherein said surgical handpiece comprises a phacoemulsification handpiece having a needle and piezoelectric crystals configured to provide ultrasonic energy by vibrating said needle.15. The apparatus of claim 13 , further comprising a switch configured to enable operation of the apparatus at a first desired time when ultrasonic energy application is desired and disable operation of the apparatus at ...

Alternate power correction outputs in electrosurgical systems

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Fluorescence videostroboscopy of vocal cords

Fluorescence videostroboscopy imaging is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to cause the emitter to emit the pulses of electromagnetic radiation at a strobing frequency determined based on a vibration frequency of vocal cords of a user. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

Ultrasound catheter system

Fluid injection method

Variable repetition rate picosecond laser

ABSTRACT A system for varying the pulse repetition rate of a pulsed laser beam includes a computer which is electronically connected to the system's oscillator and regenerative amplifier. Specifically, the computer is electronically connected to the oscillator to create a first signal which is indicative of a first pulse repetition rate for the laser beam, as it is initially generated by the oscillator. The computer then selectively divides the initial first pulse repetition rate by an integer to create a second signal which is indicative of a second pulse repetition rate. The second repetition rate is variable according to the dividing integer and is substantially lower than the first repetition rate. The Pockels cell of the regenerative amplifier is then activated by the computer with the second signal to admit pulses from the oscillator laser beam into the regenerative amplifier at the second pulse repetition rate. Thus, the output laser beam from the regenerative amplifier comprises amplified pulses having a variable second pulse repetition rate. The system may also include an attenuator which is controlled by the computer to establish the energy level of pulses in the output laser beam.

Variable repetition rate picosecond laser

A system for varying the pulse repetition rate of a pulsed laser beam includes a computer (10) which is electronically connected to the system's oscillator (12) and regenerative amplifier (14). Specifically, the computer is electronically connected to the oscillator to create a first signal (50) which is indicative of a first pulse repetition rate for the laser beam, as it is initially generated by the oscillator. The computer.then selectively divides the initial first pulse repetition rate by an integer to create a second signal (82) which is indicative of a second pulse repetition rate. The second repetition rate is variable according to the dividing integer and is substantially lower than the first repetition rate. The Pockels cell (62) of the regenerative amplifier is then activated by the computer with the second signal to admit pulses from the oscillator laser beam into the regenerative amplifier at the second pulse repetition rate. Thus, the output laser beam (78) from the regenerative amplifier comprises amplified pulses having a variable second pulse repetition rate. The system may also include an attenuator (84) which is controlled by the computer to establish the energy level of pulses in the output laser beam.

Self-contained power sypply and monitoring station for RF tissue ablation

A method and an apparatus is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus, the energy is transferred directly into the tissue mass which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shut-off occurs when any one of a number of surrounding areas to include the urethra or surrounding mass or the adjacent organs exceed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electrosurgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities

A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissue. The stylet comprises an electrical central conductor which is enclosed within an insulating or dielectric sleeve surrounded by a conductive layer terminated by an antenna to selectively deliver microwave or radio frequency energy to target tissue. One embodiment includes the electrical conductor being enclosed within a non-conductive sleeve which itself is enclosed within a conductive sleeve in a coaxial cable arrangement to form a microwave transmission line terminated by an antenna. Another embodiment includes a resistive element near the distal end of the stylet which couples the center electrode to an outer conductor to generate joulian heat as electromagnetic energy is applied, such as an RF signal.

Dual-channel RF power delivery system

A dual-channel RF power delivery system for applying RF energy to dual electrodes of an RF ablation device with independent control of the power level, frequency, phase, and time duration of the RF energy applied to each electrode to more accurately control the ablation of a target tissue. The power delivery system supplies a first controlled RF signal having a first power level, frequency, phase, and time duration to the electrode of a first flexible stylet and a second controlled RF signal having a second power level frequency, phase, and time duration to the electrode of a second flexible stylet. The difference between the first and second power levels and the temperature of the tissue between the first and second stylers are monitored to control the ablation of the target tissue. The supply of the first RF signal is terminated when the monitored temperature of the first stylet exceeds a first predetermined value and the supply of the second RF signal is terminated when the monitored temperature of the second stylet exceeds a second predetermined value. By adjusting the frequency and/or phase of the first and second RF signals, the relative amounts of bipolar and monopolar ablation can be adjusted for accurate control of the lesion volume. The lesion volume can also be controlled by varying the deployment length of the electrodes.

Motor driven electrosurgical device with mechanical and electrical feedback

An electrosurgical device comprises an end effector, a cutting member, and en electromechanical driver. The end effector comprises a pair of jaws that clamp tissue. The jaws include electrodes that deliver RF energy to clamped tissue. The cutting member cuts tissue clamped between the jaws. The electromechanical driver drives the cutting member. A control module commands the electromechanical driver, and regulates the delivery of RF energy to the electrodes, based on a combination of user input and feedback signals from the electrodes and from the electromechanical driver. The device may provide tactile feedback to the user through the user input feature, based on a load encountered by the cutting member. The device may alert the user when the exterior of end effector makes incidental contact with tissue, to avoid inadvertently burning the tissue. The device may include a removable battery pack to power the electromechanical driver and the electrodes.

Bph ablation method and apparatus

본 발명은 양성 전립선 증식증 또는 비대증(BPH)을 치료를 위한 절제술을 수행하기 위하여 제어된 열을 전달하는 방법 및 장치(14)에 관한 것이다. 본 방법 및 장치(14)에 따르면, 에너지는 둘러싸인 조직에 손상을 입히지 않고 조직이 절제되도록 하는 상기 방식으로 치료된 조직 매스(6)안으로 직접 이동된다. 요도(2) 또는 주위 매스 또는 인접한 기관(6)을 포함한 많은 주위 영역중의 어떠한 하나라도 소정의 안정한 온도 한계를 초과할 때 자동정지된다. 결정된 시간동안 유지된 라디오파 에너지의 일정한 적용은 짧은 회복 시간에 BPH의 고통을 빠르게 덜어주면서 전기-외과적 및 다른 외과적 수술을 피하는 안정한 절차를 제공한다. 이러한 절차는 입원 또는 외과수술을 요하지 않고 진찰실에서만으로도 성취될 수 있다. The present invention is directed to a method and apparatus 14 for delivering controlled heat to perform resection for treating benign prostatic hyperplasia or hypertrophy (BPH). According to the method and apparatus 14, energy is transferred directly into the treated tissue mass 6 in this manner, allowing the tissue to be excised without damaging the surrounding tissue. Any one of the many surrounding areas, including the urethra 2 or the surrounding mass or adjacent trachea 6, is automatically stopped when a certain stable temperature limit is exceeded. The constant application of radiowave energy maintained for a determined time provides a stable procedure that avoids electro-surgical and other surgical operations while quickly relieving the pain of BPH in a short recovery time. This procedure can be accomplished only in the examination room without requiring hospitalization or surgery.

Steerable medical probe with stylets

A medical probe device for reducing tissue mass in a selected portion of the body comprises a torquable catheter having a control end and a probe end. The probe end includes a stylet guide means with a flexible tip and a tip directing means extending from the control end to the flexible tip for changing the orientation of the central axis of the stylet guide means for directing a flexible stylet outward through the stylet port and through intervening tissue to targeted tissues. A stylet is positioned in the said stylet guide means. The stylet can be an RF electrode, microwave antenna, biopsy means, fluid supply means or combination thereof. Preferably, the stylet is a non-conductive sleeve having an electrode lumen and a second lumen therein, the electrode lumen terminating at a distal port in the distal end of the non-conductive sleeve, a radiofrequency electrode being positioned in said electrode lumen for longitudinal movement therein through the distal port. The medical probe device is particularly useful for removing tissue mass from the prostate and can be used for treating BPH or benign or cancerous tumors of the prostate. The device of this invention can be used in combination with a viewing scope such as a cystoscope, endoscope, laproscope and the like, being sized to extend therethrough or it can include a viewing scope. In one construction, the flexible tip comprises a metal tube with parallel spaced-apart slots extending through the tube to a continuous longitudinal section and enclosed within a flexible sleeve, whereby the tip will preferentially bend in a plane through the axis of the tube and the continuous longitudinal section.

System and method for pulsed ultrasonic power delivery employing cavitation effects

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering energy during a surgical procedure, including applying energy at a level and for a time period sufficient to induce transient cavitation, and reducing applied energy after applying energy during a second nonzero lower energy period.

BPH ablation method and apparatus

A method and an apparatus is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus, the energy is transferred directly into the tissue mass which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shut-off occurs when any one of a number of surrounding areas to include the urethra or surrounding mass or the adjacent organs exceed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electrosurgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

Medical probe device and method

A medical ablation device comprising a flexible RF electrode wire or tube, the terminal portion thereof extending through an insulating sleeve axially moveable thereon. The electrode and surrounding sleeve extend through a portion of a rigid tube having a distal end adapted to be inserted into the body of a patient. Tabs are attached to the proximal end of the sleeve and electrode for advancing them together from the terminal end of the tube, for retracting the sleeve from the distal end of the electrode to expose a predetermined area of electrode surface, and for retracting them together into the terminal end of the tube. The electrode can also be a hollow tube, the proximal end thereof being adapted to be connected to a suction source for aspiration of tissue adjacent its distal end or it can optionally contain a fiber optic, the end thereof being enclosed within the tube and closely adjacent its distal end. In one embodiment, the electrode is a hollow electrode tube of highly flexible memory metal, preformed to have a curved memory configuration. The portion of the electrode tube and its surrounding sleeve extending beyond the distal end of the outer tube adopts the curved memory configuration, causing it to follow a curved path when extended through intervening tissue to reach a target tissue to be ablated.

Method for the ablation treatment of the uvula

A method of medical ablation of tissue accessible thorough the mouth or nose is disclosed having the steps of: a) inserting a probe through the mouth into the oral cavity, wherein said probe has a disposable electrode enclosed within an insulating sleeve bendable therewith; b) steering said probe through the oral cavity into close proximity to the tissue; c) extending the disposable electrode and the insulating sleeve out of the probe and penetrating the tissue; and d) applying RF energy to the tissue surrounding the electrode to effect ablation of said tissue.

Method for reducing snoring by RF ablation of the uvula

A medical ablation method for reducing snoring wherein a flexible RF electrode wire surrounded by an insulating sleeve axially moveable thereon is inserted into an uvula; the sleeve is retracted to expose a predetermined portion of the electrode; and RF energy is applied to the uvula tissue through the electrode to cause internal lesions in the uvula and reduce snoring.

PBH ablation method and apparatus

A method and an apparatus is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus, the energy is transferred directly into the tissue mass which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shut-off occurs when any one of a number of surrounding areas to include the urethra or surrounding mass or the adjacent organs exceed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electrosurgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

Steerable medical probe with stylets

A medical probe for the treatment by radio frequency ablation of a target volume in tissue of a human having a urethral channel extending into the base of a bladder along a longitudinal axis. The probe comprises an elongate probe member having proximal and distal extremities and is sized so that it can be introduced into the urethra. The elongate probe member has a passage extending from the proximal extremity to the distal extremity. Guide cannulae are mounted in the passage of the elongate probe member and have proximal and distal extremities with the distal extremities of the guide cannulae being in the vicinity of the distal extremity of the elongate probe member. Each of the guide cannulae have a lumen extending therethrough from the proximal extremity to the distal extremity. A radio frequency conductive electrode is disposed in each lumen. An insulating sleeve is coaxially disposed on each radio frequency electrode. A control handle is secured to the proximal extremity of the elongate probe member. The control handle is connected to each radio frequency electrode and each insulating sleeve so that each radio frequency electrode and each insulating sleeve can be advanced and retracted.

Therapeutic system for energy release

FIELD: heating. SUBSTANCE: invention refers to therapeutic systems for releasing energy into the target point. A therapeutic system comprises a therapeutic module for induction heating of the target zone which is made with the possibility of measuring the temperature in the measurement field of the target zone, and a control module for therapeutic module control which is made with the possibility of creating a prior estimate of the induction heating before the energy releases basing on the measured temperature, the successive energy releases are divided by a cooling period. The control module is additionally made with the possibility of prior estimating the cooling period basing on the estimate of the induction heating before the energy releases and with the possibility of adjusting the cooling period basing on the cooling period estimate. Machine readable medium of the system contains a computer programme which is saved on it and, when implemented, order the therapeutic module to perform successive energy releases and includes instructions to create a prior estimate, adjustment of the therapeutic module and creation of prior estimate of the cooling period before the energy releases. EFFECT: invention allows for improved accuracy of energy releasing into the target zone. 10 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 518 528 C2 (51) МПК A61N 7/02 (2006.01) A61N 5/02 (2006.01) A61B 5/01 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011113751/14, 04.09.2009 (24) Дата начала отсчета срока действия патента: 04.09.2009 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.10.2012 Бюл. № 29 (73) Патентообладатель(и): КОНИНКЛЕЙКЕ ФИЛИПС ЭЛЕКТРОНИКС Н.В. (NL) R U 09.09.2008 US 61/095,366 (72) Автор(ы): КЕХЛЕР Макс О. (NL), ВААРА Теуво Й. (NL), СОККА Шунмугавелу (NL), ЭХНХОЛЬМ Госта Й. (NL) (45) Опубликовано: 10.06.2014 Бюл. № 16 A, 06.07.1993. US 2002099304 A1, 25.07.2002. US ...

Methods and systems for peripheral nerve modulation using non ablative focused ultrasound with electromyography (EMG) monitoring

Techniques for modulating peripheral nerves using focused ultrasound (FUS) are provided. Methods include locating a peripheral nerve in a subject using an imaging probe, providing a FUS having one or more ultrasound parameters to a location on the peripheral nerve, and modulating the peripheral nerve. The methods can further include eliciting and measuring a physiological response from the FUS modulation, generating tissue deformation in the vicinity of the FUS modulation, and imaging the nerve and the tissue deformation simultaneously with FUS modulation. Systems for use in the modulation of peripheral nerves are also provided.

THERAPEUTIC SYSTEM FOR ENERGY DISTRIBUTION

1. Терапевтическая система, содержащая: ! терапевтический модуль для выполнения последовательных выделений энергии в целевую зону, причем терапевтическая система содержит: ! термометрический модуль для измерения температуры в поле измерений, и ! управляющий модуль для регулировки терапевтического модуля, ! причем управляющий модуль выполнен с возможностью создания априорной оценки индуцированного тепла перед выделениями энергии. ! 2. Терапевтическая система, в частности, по п.1, в которой последовательные выделения энергии разделяются периодом охлаждения, причем управляющий модуль выполнен с возможностью ! регулировки периода охлаждения и ! создания перед выделениями энергии априорной оценки периода охлаждения на основе оцененного индуцированного нагрева. ! 3. Терапевтическая система по п.1, дополнительно содержащая: ! термометрический модуль для измерения температуры в поле измерений и ! управляющий модуль, выполненный с возможностью оценки индуцированного нагрева на основе измеренной температуры. ! 4. Терапевтическая система по п.1, в которой управляющий модуль выполнен с возможностью оценки индуцированного нагрева на основе термоакустической многоуровневой модели ткани. ! 5. Терапевтическая система по п.2, в которой термоакустическая многоуровневая тепловая модель ткани учитывает распределение тепла как вдоль, так и поперек направления выделения энергии. ! 6. Терапевтическая система по п.1, в которой управляющий модуль выполнен с возможностью оценки внефокусного нагрева, основываясь на местной плотности выделяемой энергии. ! 7. Терапевтическая система по п.1, в которой управляющий модуль выполне� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 113 751 (13) A (51) МПК A61N 7/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): КОНИНКЛЕЙКЕ ФИЛИПС ЭЛЕКТРОНИКС Н.В. (NL) (21)(22) Заявка: 2011113751/14, 04.09.2009 Приоритет(ы): (30) Конвенционный приоритет: 09.09.2008 US 61/095,366 (87) Публикация заявки РСТ: WO 2010/ ...

Method, apparatus, and kit for thermal suture cutting

A novel suture removal instrument, kit and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient discomfort and at a competitive or lower cost.

Thermal mapping catheter with ultrasound probe

A medical probe apparatus comprising a catheter (10) having a stylet guide housing with one or more stylet ports therein and stylet guides for directing one or more flexible stylets outward through intervening tissue to target tissue. The active stylets emit radio frequency RF energy which establishes an RF current in the patient. The current, being densest at the stylet tips, causes heating of the surrounding tissue to initiate ablation of the target tissue. One aspect of the invention includes temperature sensing stylets at the location of the RF emitting stylets to monitor the temperature of the tissue being ablated. This allows the surgeon to have increased knowledge about the ablating action under way in order to control the intensity of the applied RF current, or to adjust the amount of time the current is applied, or both.

Device for the local treatment of a patient and more particularly applicable in acupuncture and auriculotherapy

ABSTRACT OF THE DISCLOSURE A device for the local treatment of a patient by acupuncture or auriculotherapy. Instead of needles, a treatment head is approached the body of the patient. It includes an infra-red laser diode being excitable recurrently and in a controlled manner. The recurrence frequency is selectable among a plurality of discrete frequencies, each of which may be finely adjusted.

Method of operating microsurgical instruments

A method of operating a microsurgical instrument, such as a vitrectomy probe (10), is disclosed. The probe includes a port (16) for receiving tissue and an inner cutting member (14). A flow of tissue is induced into the port with a vacuum source, and the member is actuated in a cyclic manner to open and close the port over a plurality of cut rates. A duty cycle of the member is varied with the cut rate to vary the flow of the tissue into the port. The method yields the ability to adjust flow rate into the probe and aperture of the probe for a given cut rate so as to effectively perform a wide variety of vitreoretinal surgical objectives.

Vitrectomy surgical apparatus employing multisensor pressure feedback

A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a plurality of sensors provided at a plurality of points between the pressure source and the vitrectomy handpiece, and a controller configured to employ a function correlating a desired cut rate with a pressure source duty cycle and employ a different function when one sensor of the plurality of sensors senses a pressure outside a predetermined pressure range.

Steerable medical probe with stylets

A medical probe for the treatment by radio frequency ablation of tissue in a human comprising an elongate probe member having proximal and distal extremities. The elongate probe member has a longitudinal axis and at least one passage extending from the proximal extremity to the distal extremity. A guide cannula is mounted in the at least one passage of the elongate probe member and has proximal and distal extremities with the distal extremity of the guide cannula being in the vicinity of the distal extremity of the elongate probe member. The guide cannula has an opening in the distal extremity and a lumen extending from the proximal extremity to the opening in the distal extremity. A stylet is slidably disposed in the lumen of the guide cannula and includes a radio frequency electrode having a distal portion and a layer of insulating material disposed around the radio frequency so that at least the distal portion is exposed. A handle is coupled to the proximal extremity of the elongate probe member. The distal extremity of he guide cannula has a bendable distal portion. The handle includes a first actuator for causing the distal portion of the guide cannula to bend at an angle to the longitudinal axis so that the opening faces the tissue and a second actuator secured to the stylet for advancing the radio frequency electrode and the layer of insulating material from the opening in the guide cannula into the tissue.

electrosurgical system

다양한 실시예는 생물학적 조직을 치료하기 위한 전기 수술 시스템을 개시한다. 전기 수술 시스템은, 마이크로파 에너지를 공급하도록 구성된 전기 수술용 생성기; 신체 내의 치료 부위에 최소 침습적 삽입을 위한 조향 가능한 삽입 코드를 갖는 수술용 관찰 디바이스; 및 상기 삽입 코드 내에 위치된 기기 채널에 맞는 크기의 전기 수술 기기를 포함한다. 상기 전기 수술 기기는 마이크로파 에너지를 운반하도록 배열된 가요성 동축 케이블; 및 상기 동축 케이블의 원위 단부에 연결되고 마이크로파 에너지를 수신하도록 구성된 방사 팁 부분을 포함하고, 상기 방사 팁 부분의 최대 외부 직경은 1.0mm 이하이고, 상기 방사 팁 부분의 최대 외부 직경은 상기 동축 케이블의 외부 직경보다 더 작다. 또한, 상기 방사 팁 부분은 마이크로파 에너지를 운반하기 위한 근위 동축 전송 라인; 및 상기 근위 동축 전송 라인의 원위 단부에 장착된 원위 바늘 팁을 포함하고, 상기 전기 수술 기기는 상기 기기 채널의 원위 단부를 넘어 상기 원위 바늘 팁을 연장시켜 생물학적 조직을 천공하도록 상기 기기 채널 내에서 활주 가능하고, 상기 원위 바늘 팁은 마이크로파 에너지를 생물학적 조직으로 전달하도록 배열된다.

Laser control device with interval timer

ABSTRACT OF THE DISCLOSURE A laser control device includes a pulse repetition interval timer and a pulse width timer that, upon each setting, directs one pulse having a predetermined pulse width to a laser system that emits a laser beam in response thereto. A pulse cycle timer is provided which sets the pulse width timer at preset intervals during a time period from its initial setting until the resetting thereof. The pulse repetition interval timer resets the pulse cycle timer when a predetermined time . -,, ~ has passed since the initial setting time, and an acutator is provided for simultaneously setting the pulse width timer, the pulse cycle timer and the interval timer.

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 T≦1 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.

Bph ablation method and apparatus

A method and an apparatus (14) is disclosed for delivering controlled heat to perform ablation to treat the benign prosthetic hypertrophy or hyperplasia (BPH). According to the method and the apparatus (14), the energy is transferred directly into the tissue mass (6) which is to be treated in such a manner as to provide tissue ablation without damage to surrounding tissues. Automatic shutoff occurs when any one of a number of surrounding areas to include the urethra (2) or surrounding mass or the adjacent organs (6) exceed predetermined safe temperature limits. The constant application of the radio frequency energy over a maintained determined time provides a safe procedure which avoids electro-surgical and other invasive operations while providing fast relief to BPH with a short recovery time. The procedure may be accomplished in a doctor's office without the need for hospitalization or surgery.

Motor driven electrosurgical device with mechanical and electrical feedback

本发明公开了一种电外科装置，所述电外科装置包括端部执行器、切割构件和机电驱动器。所述端部执行器包括夹住组织的一对钳口。所述钳口包括电极，所述电极将射频能量传送至被夹住的组织。所述切割构件切割被夹在所述钳口之间的组织。所述机电驱动器驱动所述切割构件。控制模块控制所述机电驱动器，并根据使用者输入与来自电极以及来自机电驱动器的反馈信号的组合来调整射频能量至电极的传送。所述装置可根据切割构件所遭遇的负载而通过使用者输入结构向使用者提供触觉反馈。所述装置可当端部执行器的外部意外接触组织时警示使用者，以避免意外烧伤组织。所述装置可包括可移除的电池组以向机电驱动器和电极供电。

Medical probe device with optic viewing capability

Arrangement for treating bodily substances

Apparatus and method for treating uvula, tonsils, adenoids, and sinus tissue

(57)【要約】 口蓋垂の少なくとも一部を融除するための装置である。近位端を有する電極手段と、口蓋垂を支持する保持装置がなくても口蓋垂の外部に適当に貫通するような鋭利な電極手段遠位端とを含む。電極手段に連結された前進および後退手段が、電極手段遠位端を口蓋垂の外表面を通って口蓋垂の内部領域まで前進するように構成されている。また、前進および後退手段は、電極手段遠位端を口蓋垂の内部から引き出すように構成されている。ケーブル手段が電極手段に接続されている。治療は高周波エネルギーを使って行なわれる。吸引および注入手段も備えている。

MEDICAL PROBE WITH BIOPSIA CONDUCT

Therapy system for depositing energy

一种治疗系统，其包括将能量连续沉积在靶区的治疗模块，所述治疗系统具有设置为在能量沉积之前产生诱导加热的先验估计的控制模块。例如提供了用于测量测量野中的温度的测温模块。诱导加热可以基于组织模型从治疗模块的设定导出。具体地，治疗模块是高强度聚焦超声发射器。使用设置为测温的磁共振检测系统作为测温模块。

Control of pulse duty cycle based upon footswitch displacement

Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical circuitry for ultrasonic vibrating the needle. A power source provides pulsed electrical power to the handpiece electrical circuitry and an input is provided for enabling a surgeon to select an amplitude of dislighted pulses and a pulse width. A control system and pulse duty cycle is provided for controlling the off duty cycle to insure heat dissipation before a subsequent pulse is activated, including a foot pedal switch.

System and method for pulsed ultrasonic power delivery employing cavitational effects

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering energy during a surgical procedure, including applying energy at a level and for a time period sufficient to induce transient cavitation, and reducing applied energy after applying energy during a second nonzero lower energy period.

Enhanced microburst ultrasonic power delivery system and method

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, comprising applying energy during a series of short burst periods, the short burst periods interspersed by short rest periods. The method and apparatus further comprise delivering minimal energy during a long off period, the long off period comprising a relatively long period when minimal energy is applied, wherein one long off period follows each pulsed energy on period. The short burst periods and the short rest periods are relatively brief in duration as compared with the long off period.

Systems and methods for coronary occlusion treatment

Exemplary embodiments of the present disclosure include systems and methods for treatment of occlusions, including coronary artery chronic total occlusions.

Rapid pulse phaco power for burn free surgery

Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical system for ultrasonically vibrating said needle along with a power source for providing pulsed electrical power source for providing pulsed electrical power to the handpiece electrical system. Irrigation fluid is provided to the handpiece needle and aspirating fluid is removed from the handpiece needle and aspirating fluid is removed from the handpiece needle. A determination of a voltage current phase relationship of the provided electrical power is made and in response thereto a control system varies a power level duty cycle provided to the handpiece electrical system from the power source and/or modify the aspiration flow rate. In addition, a separate input enables manual control of pulse amplitude and the control system in response to a selected amplitude determines a duty cycle of the provided pulsed electrical power.

Electrosurgical systems and methods

El aparato y los métodos asociados se refieren al control de la energía eléctrica de una señal electroterapéutica que se proporciona a un tejido biológico comprometido por un instrumento electroquirúrgico durante un procedimiento médico. La energía eléctrica, producto de una diferencia de voltaje a través y una corriente eléctrica conducida por el tejido biológico comprometido, se controla de acuerdo con un programa terapéutico. El programa electroterapéutico puede reducirse o terminarse en respuesta al cumplimiento de un criterio de terminación. En algunos ejemplos, el criterio de terminación es una característica actual como, por ejemplo, una disminución de la corriente conducida por el tejido biológico comprometido. En algunos ejemplos, el criterio de terminación es una característica de resistencia biológica del tejido, como, por ejemplo, un aumento en la resistencia biológica del tejido que supera un valor de resistencia delta predeterminado

Electrosurgical system

Various embodiments disclose an electrosurgical system for treating biological tissue. The electrosurgical system comprises: an electrosurgical generator configured to supply microwave energy; a surgical scoping device having a steerable insertion cord for minimally invasive insertion to a treatment site within a body; and an electrosurgical instrument dimensioned to fit within an instrument channel that is located within the insertion cord. The electrosurgical instrument comprises: a flexible coaxial cable arranged to convey the microwave energy; and a radiating tip portion connected at a distal end of the coaxial cable and configured to receive the microwave energy, wherein the radiating tip portion has a maximum outer diameter that is 1.0 mm or less, and wherein the maximum outer diameter of the radiating tip portion is smaller than an outer diameter of the coaxial cable. Also, the radiating tip portion comprises: a proximal coaxial transmission line for conveying the microwave energy; and a distal needle tip mounted at a distal end of the proximal coaxial transmission line, wherein the electrosurgical instrument is slidable within the instrument channel to extend the distal needle tip beyond a distal end of the instrument channel to puncture biological tissue, and wherein the distal needle tip is arranged to deliver the microwave energy into biological tissue.

Medical probe apparatus with enhanced rf, resistance heating, and microwave ablation capabilities

A medical probe device comprising a catheter (2) having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to target tissue. The stylet comprises an electrical central conductor which is enclosed within an insulating or dielectric sleeve surrounded by a conductive layer terminated by an antenna to selectively deliver microwave or radio frequency energy to target tissue.

Medical probe with biopsy stylet

This invention is a medical probe with a biopsy stylet apparatus comprising a catheter (2) having a stylet guide housing with at least one stylet port in a side thereof and a stylet guide (6) for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide (6) has a biopsy sample device or other tissue manifesting device at the distal end thereof to gather tissue or perform other operations at the point of the desired tissue such as emitting electromagnetic energy as ablative power to target tissues.

System, method and computer-accessible medium for in-vivo tissue ablation and/or damage

Systems, methods and computer-accessible mediums can be provided that can establish particular parameters for electric pulses based on a characteristic(s) of the tissue(s), and control an application of the electric pulses to tissue(s) for a plurality of automatically controlled and separated time periods to ablate the tissue(s) through mediation of membrane potential and through inducing the cells through a plurality of charge-discharge cycles such that an electroporation of a majority of the tissue(s) is prevented or reduced.

Method and system for destruction of undesirable formations in body of mammal

FIELD: medicine. SUBSTANCE: group of inventions relates to medicine and is based on introduction of probe into body of a mammal. Said probe is electrically connected with control unit, and when probe is brought into physical contact with formation from control unit, impulses of energy are transmitted on probe to destruct formation. Invention also includes count of quantity of impulses, transmitted on probe, and determination of remaining term of probe service by subtracting quantity of impulses, transmitted on probe, from quantity of impulses, corresponding to initial term of probe service. Treatment session is automatically finished, as soon as quantity of impulses transmitted on probe approach, at least, to some part of specified remaining term of probe service. Specified term of probe service is retained for new treatment session. Impulse delivery is automatically stopped, when remaining service term expires, and application of such probe becomes impossible. EFFECT: group of inventions makes it possible to transmit impulse on probe, working head of which contacts with formation subjected to destruction. 16 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 489 978 (13) C2 (51) МПК A61B 17/225 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010152607/14, 22.12.2010 (24) Дата начала отсчета срока действия патента: 22.12.2010 (73) Патентообладатель(и): Литотек Медикал Лтд. (IL) (43) Дата публикации заявки: 27.06.2012 Бюл. № 18 2 4 8 9 9 7 8 (45) Опубликовано: 20.08.2013 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: RU 23448373 C1, 10.03.2009. RU 2313306 C2, 27.12.2007. RU 2388427 C2, 10.05.2010. 2 4 8 9 9 7 8 R U (54) СПОСОБ И СИСТЕМА ДЛЯ РАЗРУШЕНИЯ НЕЖЕЛАТЕЛЬНЫХ ОБРАЗОВАНИЙ В ТЕЛЕ МЛЕКОПИТАЮЩЕГО автоматически прекращается, как только число импульсов, поданных на зонд, приближается, по меньшей мере, к некоторой доле установленного остаточного срока службы зонда. Установленный ...

Treatment of dermal glands by the application of non-thermal energy

Method, apparatus, and kit for thermal suture cutting

A novel suture removal instrument, kit and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient discomfort and at a competitive or lower cost.

A handheld device for performing a treatment operation on skin

According to an aspect, there is provided a handheld device ( 2 ) for applying energy pulses to skin ( 17 ) of a subject to perform a treatment operation as the handheld device is moved across the skin, the handheld device comprising: an aperture ( 6 ) that is to be placed adjacent to the skin; at least one energy source ( 8 ) for generating an energy pulse and for providing the energy pulse through the aperture to perform the treatment operation on 5 skin adjacent the aperture, wherein the at least one energy source has a minimum pulse repetition period following the generation of an energy pulse before a subsequent energy pulse can be generated; a first skin property sensor ( 14 ) for measuring a skin property and for outputting a first measurement signal representing measurements of the skin property at a first sensing position ( 24 ), wherein the skin property is a property that changes in response to the application of an energy pulse to the skin, and wherein the first sensing position is in front of the aperture relative to an intended motion direction of the handheld device over the skin; a second skin property sensor ( 16 ) for measuring the skin property and for outputting a second measurement signal representing measurements of the skin property at a second sensing position ( 26 ), wherein the second sensing position is behind the aperture relative to the intended motion direction; a memory unit ( 56 ); and a control unit ( 10 ) that is coupled to the at least one energy source to control the generation of energy pulses by the at least one energy source, and coupled to the first skin property sensor and the second skin property sensor to obtain the first measurement signal and the second measurement signal, wherein the control unit is configured to store a profile of at least the first measurement signal in the memory unit; wherein the control unit is further configured to, when the handheld device is moving in the intended motion direction over the skin: ...

Passive header module for a modular energy system

A modular energy system including a header module and a module. The header module includes a display screen for displaying a user interface. The header module is configured to receive data, including safety critical data, from the module, control the display screen to cause the Ul to display Ul content based on the received data, the Ul content including safety critical Ul content based on the safety critical data, and transmit the displayed safety critical Ul content to the module for verification thereby. The module is configured to confirm whether the transmitted safety critical data coincides with the displayed safety critical Ul content. In the event that it is determined that they do not coincide, the header module and/or the module can be configured to stop the function(s) of the module, display an alert on the display screen, and take various other actions.

Modulated pulsed ultrasonic power delivery system and method

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.

Motor driven electrosurgical device with mechanical and electrical feedback

An electrosurgical device comprises an end effector, a cutting member, and en electromechanical driver. The end effector comprises a pair of jaws that clamp tissue. The jaws include electrodes that deliver RF energy to clamped tissue. The cutting member cuts tissue clamped between the jaws. The electromechanical driver drives the cutting member. A control module commands the electromechanical driver, and regulates the delivery of RF energy to the electrodes, based on a combination of user input and feedback signals from the electrodes and from the electromechanical driver. The device may provide tactile feedback to the user through the user input feature, based on a load encountered by the cutting member. The device may alert the user when the exterior of end effector makes incidental contact with tissue, to avoid inadvertently burning the tissue. The device may include a removable battery pack to power the electromechanical driver and the electrodes.

Uvula, tonsil, adenoid and sinus tissue treatment device and method

An apparatus for ablating at least a portion of a uvula includes an electrode means with a proximal end, and an electrode means distal end sharpened sufficiently to pierce an exterior of the uvula without a retainer device supporting the uvula. An advancement and retraction means coupled to the electrode means is configured to advance the electrode means distal end through an exterior surface of the uvula and into an interior region of the uvula. The advancement and retraction means is configured to retract the electrode means distal end from the interior of the uvula. Handle means is coupled to the electrode means proximal end. Cabling means is coupled to the electrode means. The treatment is made by the use of RF energy. Aspiration and infusion means are provided.

Laser system and method for operating the laser system

An apparatus and a method for cleaning a cavity filled with a liquid are disclosed. An apparatus (1) for applying pulses of electromagnetic radiation to a cavity (2) filled with a liquid (3) may comprise a source (4, 4') for generating a first pulse and a second pulse of electromagnetic radiation and a control unit (22) adapted to control a time between the first pulse and the second pulse as a function of a diameter D and/or a cross-sectional area of the cavity (2).

Electrosurgical system and method

装置和相关方法涉及在医疗过程期间控制电疗信号的电功率，所述电疗信号被提供到由电外科器械接合的生物组织。根据治疗方案控制电功率，该电功率是跨接合的生物组织的电压差和由接合的生物组织传导的电流的乘积。响应于满足终止标准，可以减少或终止电疗方案。在一些示例中，终止标准是电流特性，例如，由接合的生物组织传导的电流的减少。在一些示例中，终止标准是生物组织电阻特性，例如，超过预定增量电阻值的生物组织电阻的增加。

Control of pulse duty cycle based upon footswitch displacement

Phacoemulsification apparatus includes a phacoemulsification handpiece having a needle and an electrical circuitry for ultrasonic vibrating the needle. A power source provides pulsed electrical power to the handpiece electrical circuitry and an input is provided for enabling a surgeon to select an amplitude of dislighted pulses and a pulse width. A control system and pulse duty cycle is provided for controlling the off duty cycle to insure heat dissipation before a subsequent pulse is activated, including a foot pedal switch.

Method of operating microsurgical instruments

A method of operating a microsurgical instrument, such as a vitrectomy probe (10), is disclosed. The probe includes a port (16) for receiving tissue and an inner cutting member (14). A flow of tissue is induced into the port with a vacuum source, and the member is actuated in a cyclic manner to open and clo se the port over a plurality of cut rates. A duty cycle of the member is varied with the cut rate to vary the flow of the tissue into the port. The method yields the ability to adjust flow rate into the probe and aperture of the probe for a given cut rate so as to effectively perform a wide variety of vitreoretinal surgical objectives.

Surgical instrument for powering an auxiliary function using a drive signal

本发明提供了一种能够连接到外科能量模块的外科器械，该外科能量模块被配置成能够提供在第一频率范围内的用于驱动第一能量模态的第一驱动信号和在第二频率范围内的用于驱动第二能量模态的第二驱动信号。该外科器械可包括端部执行器、电路和被配置成能够从直流(DC)电源接收电力的外科器械部件。该电路可被配置成能够将该第一电信号转换成DC电压，将该DC电压施加到该外科器械部件，并且根据该第二驱动信号将该第二能量模态递送到该端部执行器。另选地，该电路可设置在被配置成能够将该外科器械连接到该外科能量模块的缆线组件内。

Beam multiplexer for writing refractive index changes in optical materials

A refractive index writing system includes a pulsed laser source, an objective lens for focusing an output of the pulsed laser source to a focal spot in an optical material, and a scanner for relatively moving the focal spot with respect to the optical material along a scan region. A beam multiplexer divides the output of the laser source into at least two working beams that are focused to variously shaped focal spots within the optical material. A controller controls at least one of a temporal and a spatial offset between the focal spots of the working beams together with the relative speed and direction of the scanner for maintaining an energy profile within the optical material along the scan region above a nonlinear absorption threshold of the optical material and below a breakdown threshold of the optical materials.

Irreversible electroporation (iep) based on impedance

FIELD: medicine. SUBSTANCE: group of inventions relates to medicine, namely to the method for irreversible electroporation (IEP) and the system for its implementation. In this case, catheter electrodes are selected to supply IEP pulses to the organ tissue between the selected electrodes. A IEP protocol is established containing an impedance threshold. The impedance between the selected electrodes is measured. The measured impedance is compared with a given threshold. If the measured impedance is below the threshold, the IEP protocol is changed so that the new impedance threshold is below the measured impedance. Changing the IEP protocol involves changing the pulse width, pulse repetition rate and/or the number of IEP pulses that meet the specified safety criterion for the measured impedance. IEP pulses are supplied in accordance with the modified protocol. Safe ablation is provided with protection against excessive Joule heating of the tissue by maintaining the value of the supplied energy similarly to the planned value using modified parameters of the IEP pulses so that the heat generated can spread to a greater extent and the maximum temperature caused by heating decreases in order to perform ablation at a given impedance with the same clinical and thermal effect. EFFECT: expansion of the range of electroporation methods. 10 cl, 2 dwg, 2 tbl

Ultrasound-mediated inducement, detection, and enhancement of stable cavitation

Methods and systems for passively detecting stable cavitation and enhancing stable cavitation during sonothrombolysis are provided. The method of passively detecting stable cavita-tion includes providing a determined level of ul-trasonic energy and detecting a scattered level of ultrasonic energy. The system for inducing and passively detecting stable cavitation includes a dual-element annular transducer array configured to provide a fundamental ultrasonic frequency and to detect an ultrasonic frequency that is a deriva-tive of the fundamental frequency. The method of enhancing stable cavitation includes administering a nucleating agent and a thrombolytic agent to a treatment zone, providing a determined level of ul-trasonic energy, and detecting a scattered level of ultrasonic energy.

Adaptively connectable and redistributable system accessories for modular energy systems

本发明公开了一种模块化能量系统，该模块化能量系统可包括能够可移除地耦接到一个或多个能量模块的头模块。一个或多个能量模块共同包括能够连接到外科器械的多个端口，并且一个或多个能量模块各自被配置成能够驱动用于外科器械的多种能量模态。该头模块可包括被配置成能够显示用户界面的显示屏。头模块能够连接到脚踏开关，使得头模块能够从脚踏开关接收控制信号并且能够将控制信号发送到脚踏开关。头模块可进一步包括被配置成能够将脚踏开关分配到特定端口，并且基于经由用户界面接收的用户输入，将脚踏开关重新分配到端口中的另一个端口。

Method and system for destroying of undersirable formations in mammalian body

A method and a system for destruction of an undesirable formation in a mammalian body are described. The invention is based on inserting a probe (12) into mammalian body; said probe is electrically connectable to a control unit (18) and upon bringing the probe in physical contact with the formation supplying pulses of energy from the control unit to the probe in order to destroy the formation. The invention further comprises counting amount of pulses being supplied to the probe and establishing a remaining service life of the probe by subtracting the amount of pulses being supplied to the probe from an amount of pulses corresponding to initial service life of the probe. The treatment session is automatically terminates as soon as amount of pulses being supplied to the probe approaches at least a fraction of the established remaining service life of the probe. The established remaining service life of the probe is stored for new treatment session. Delivery of pulses automatically terminates when the remaining service life is exhausted and use of such probe becomes impossible.

BPH resection method and device

Methods for controlling treatment volumes, thermal gradients, muscle stimulation, and immune responses in pulsed electric field treatments

Pursuant to embodiments of the present invention, a method of performing electronically controlled electrotherapy may include modifying or killing target cells and simultaneously modifying a secondary outcome by delivering electrical pulses and dynamically adjusting an energy delivery profile of the electrical pulses in response to a measurement. The secondary outcome may be a physical outcome, a biological outcome, and/or a systemic outcome.

System and method for pulsed ultrasonic power delivery employing cavitation effects

A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include delivering energy during a surgical procedure, including applying energy at a level and for a time period sufficient to induce transient cavitation, and reducing applied energy after applying energy during a second nonzero lower energy period.

Irreversible electroporation based on Impedance (IRE)

本发明题为“基于阻抗的不可逆电穿孔(IRE)”。不可逆电穿孔(IRE)方法包括选择被放置成与器官中的组织接触的导管的电极，用于在所选择的电极之间施加IRE脉冲。在所选择的电极之间测量阻抗。基于所测量的阻抗，选择具有在所测量的阻抗下满足预定义安全标准的参数的IRE协议。根据所选择的协议施加所述IRE脉冲。

Use of pulsed ultrasonics in surgical applications

A medical instrument (10) is used by a surgeon (S) operating on a patient (P). A surgical implement (12) is held by the surgeon performing the operation and is manipulable by him to bring a portion (14) of the implement into contact with the patient's body (B). A source (16) of ultrasonic pulses (18) produces a stream of such pulses which are supplied to the instrument. The method of the present invention enables pulses to be supplied to the instrument for a defined interval (T D ) after which there is a defined interval (T E ) in which no pulses are delivered. At the end of this pause pulses are again delivered to the instrument. Provision of a pause enable the surgeon to better control the operation, for example, by preventing overcutting of tissue.

Therapy system for depositing energy

A therapy system comprises a therapy module to perform successive deposits of energy in a target zone, the therapy system being provided with a control module is configured to prior the deposits of energy produce an a priori estimate of the induced heating. For example a thermometry module is provided to measure temperature in a measurement field. The induced heating may be derived on the basis of a tissue model from the settings of the therapy module. In particular the therapy module is a high- intensity focuses ultrasound transmitter. A magnetic resonance examination system configured for thermometry is employed as the thermometry module.

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 40 at a treatment site within a patient's vasculature. The method further comprises activating the ultrasound radiating member 40 to produce pulses of ultrasonic energy at a cycle period T ≤ 1 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.