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878results about "Controlling energy of instrument" patented technology
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Electrosurgical system
InactiveUS6929641B2Simple switching processFree up additional switching capabilityControlling energy of instrumentSurgical instruments for heatingElectricityCoupling
An electrosurgical system includes a generator for generating radio frequency (RF) power, and an electrosurgical instrument including at least three electrodes. The generator comprises an RF output stage having at least a pair of RF output lines, a power supply coupled to the output stage for supplying power to the output stage, and a controller capable of varying the RF power signal supplied to the output lines. The system also includes a selection circuit having at least three output connections each in electrical connection with a respective one of the at least three electrodes. This selection circuit operates to vary the coupling between the RF output stage and the three or more output connections. A switching device operable by the user causes the selection circuit to vary the electrode or electrodes to which RF power is supplied, and also causes the RF power signal supplied to at least one of the at least three output connections to vary depending on the electrode or electrodes to which RF power is supplied. In one arrangement of the selection circuit, one of the electrodes has no direct connection to the output stage of the generator and is connected via a capacitor to another of the electrodes.
Owner:GYRUS MEDICAL LTD
Tissue biopsy and treatment apparatus and method
InactiveUS6869430B2Improve clinical outcomesPrecise positioningSurgical needlesControlling energy of instrumentSensor arrayTissue biopsy
An embodiment of the invention provides a tissue biopsy and treatment apparatus that comprises an elongated delivery device that is positionable in tissue and includes a lumen. A sensor array having a plurality of resilient members is deployable from the elongated delivery device. At least one of the plurality of resilient members is positionable in the elongated delivery device in a compacted state and deployable with curvature into tissue from the elongated delivery device in a deployed state. At least one of the plurality of resilient members includes at least one of a sensor, a tissue piercing distal end or a lumen. The sensor array has a geometric configuration adapted to volumetrically sample tissue at a tissue site to differentiate or identify tissue at the target tissue site. At least one energy delivery device is coupled to one of the sensor array, at least one of the plurality of resilient members or the elongated delivery device.
Owner:ANGIODYNAMICS INC
Surgical Tool With Integrated Sensor
An instrumented surgical tool and associated systems and methods for performing surgical procedures such as tissue dissection or ligation using the instrumented surgical tool are described. In particular, a surgical tool operatively connected to a sensor used to detect a structural artifact such as the presence and characteristics of a blood vessel and to evaluate the safe use of the surgical tool within a surgical field is described.
Owner:BRITESEED
Device for circulating heated fluid
ActiveUS8226635B2Controlling energy of instrumentSurgical instruments for heatingMonitoring and controlEmbedded system
A system for ablating tissue includes a reusable control unit including a processor monitoring and controlling ablation and a control interface receiving input to and output from the processor in combination with a disposable procedure set releasably connectable to the control unit to couple to the control interface for communication with the processor.
Owner:MINERVA SURGICAL
System and method for a tissue resection margin measurement device
ActiveUS20160192960A1Minimally invasiveCompensation for deformationMedical imagingSurgical needlesMeasurement deviceVisual perception
Embodiments of the invention provide a system and method for resecting a tissue mass. The system for resecting a tissue mass includes a surgical instrument and a first sensor for measuring a signal corresponding to the position and orientation of the tissue mass. The first sensor is dimensioned to fit insider or next to the tissue mass. The system also includes a second sensor attached to the surgical instrument configured to measure the position and orientation of the surgical instrument. The second sensor is configured to receive the signal from the first sensor. A controller is in communication with the first sensor and / or the second sensor, and the controller executes a stored program to calculate a distance between the first sensor and the second sensor. Accordingly, visual, auditory, haptic or other feedback is provided to the clinician to guide the surgical instrument to the surgical margin.
Owner:THE BRIGHAM & WOMEN S HOSPITAL INC
Medical treatment system with energy delivery device for limiting reuse
InactiveUS7118564B2Without disabling functionalityControlling energy of instrumentEye treatmentClosed loopLaser surgery
Owner:CILAG GMBH INT
Method and apparatus for EMR treatment
InactiveUS6997923B2Improve cooling effectUltrasound therapyIn-vivo radioactive preparationsTherapeutic treatmentLength wave
A method and apparatus are provided for performing a therapeutic treatment on a patient's skin by concentrating applied radiation of at least one selected wavelength at a plurality of selected, three-dimensionally located, treatment portions, which treatment portions are within non-treatment portions. The ratio of treatment portions to the total volume may vary from 0.1% to 90%, but is preferably less than 50%. Various techniques, including wavelength, may be utilized to control the depth to which radiation is concentrated and suitable optical systems may be provided to concentrate applied radiation in parallel or in series for selected combinations of one or more treatment portions.
Owner:PALOMAR MEDICAL TECH +1
Handpiece with electrode and non-volatile memory
InactiveUS7115123B2Assist in treatmentElectrotherapyPneumatic massageSkin surfaceNon-volatile memory
An apparatus for cooling a skin surface includes an RF device that has an RF electrode with dielectric and conductive portions. The RF device is configured to be coupled to an RF energy source. A cooling member is coupled to the RF device. A memory is coupled to the RF device. The memory is configured to store information to facilitate operation of at least one of the RF electrode, the cooling member, and the RF energy source.
Owner:THERMAGE INC
Laser ablation process and apparatus
InactiveUS20020045811A1Reduce Fresnel reflectionMaximize transmitted lightControlling energy of instrumentDiagnostics using spectroscopyFiberLaser light
A laser catheter is disclosed wherein optical fibers carrying laser light are mounted in a catheter for insertion into an artery to provide controlled delivery of a laser beam for percutaneous intravascular laser treatment of atherosclerotic disease. A transparent protective shield is provided at the distal end of the catheter for mechanically diplacing intravascular blood and protecting the fibers from the intravascular contents, as well as protecting the patient in the event of failure of the fiber optics. Multiple optical fibers allow the selection of tissue that is to be removed. A computer controlled system automatically aligns fibers with the laser and controls exposure time. Spectroscopic diagnostics determine what tissue is to be removed.
Owner:KITTRELL CARTER +2
Ablation of rectal and other internal body structures
The invention provides an apparatus and system for ablation of body structures or tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting energy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloons at upstream and downstream locations. Inflatable balloons also serve to anchor the catheter in place. A plurality of electrodes are disposed on the catheter and at least one such electrode is selected and advanced out of the catheter to penetrate and ablate selected tissue inside the body in the region of the rectum. The electrodes are coupled to sensors to determine control parameters of the body structure or tissue, and which are used by feedback technique to control delivery of energy for ablation or fluids for cooling or hydration. The catheter includes an optical path disposed for coupling to an external view piece, so as to allow medical personnel to view or control positioning of the catheter and operation of the electrodes. The catheter is disposed to deliver flowable substances for aiding in ablation, or for aiding in repair of tissue, such as collagen or another substance for covering lesions or for filling fissures. The flowable substances are delivered using at least one lumen in the catheter, either from at least one hole in the catheter, from an area of the catheter covered by a microporous membrane, or from microporous balloons.
Owner:VIDACARE
Fluid-assisted medical devices, systems and methods
ActiveUS20070016182A1Controlling energy of instrumentSurgical instruments for heatingElectricityBipolar electrosurgery
Adaptors for electrically coupling between an electrosurgical generator and a bipolar electrosurgical device are provided. In one preferred embodiment, the adaptor comprises a power input connector for coupling the adaptor with a monopolar mode power output connector of the electrosurgical generator, a ground connector for coupling the adaptor with a ground connector of the electrosurgical generator, a first and a second power output connector, each for coupling the adaptor with a first and a second bipolar mode power input connector of the bipolar electrosurgical device, respectively, a monopolar hand switch connector for coupling the adaptor with a monopolar mode hand switch connector of the electrosurgical generator, and at least one bipolar mode hand switch connector for coupling the adaptor with a bipolar mode hand switch connector of the electrosurgical device.
Owner:MEDTRONIC ADVANCED ENERGY
Treatment apparatus with electromagnetic energy delivery device and non-volatile memory
An apparatus for cooling a skin surface includes a support structure coupled to an electromagnetic energy delivery device. The electromagnetic energy delivery device is configured to be coupled to an electromagnetic energy source. A cooling member is coupled to the electromagnetic energy delivery device and is configured to create a reverse thermal gradient through a skin surface. A memory is coupled to the electromagnetic energy delivery device and is positioned at the support structure or the electromagnetic energy delivery device. The memory is configured to store information to facilitate operation of at least one of the cooling member, and the electromagnetic energy source. Resources are coupled to the cooling member to permit different levels of cooling at different times of treatment.
Owner:THERMAGE INC
System for electrosurgical tissue treatment in the presence of electrically conductive fluid
InactiveUS7678069B1Quantity minimizationReduce the temperatureCannulasEnemata/irrigatorsEngineeringLow temperature plasma
Systems and methods are provided for applying a high frequency voltage in the presence of an electrically conductive fluid to create a relatively low-temperature plasma for ablation of tissue adjacent to, or in contact with, the plasma. In one embodiment, an electrosurgical probe or catheter is positioned adjacent the target site so that one or more active electrode(s) are brought into contact with, or close proximity to, a target tissue in the presence of electrically conductive fluid. High frequency voltage is then applied between the electrode terminal(s) and one or more return electrode(s) to generate a plasma adjacent to the active electrode(s), and to volumetrically remove or ablate at least a portion of the target tissue. The high frequency voltage generates electric fields around the active electrode(s) with sufficient energy to ionize the conductive fluid adjacent to the active electrode(s). Within the ionized gas or plasma, free electrons are accelerated, and electron-atoms collisions liberate more electrons, and the process cascades until the plasma contains sufficient energy to break apart the tissue molecules, causing molecular dissociation and ablation of the target tissue.
Owner:ARTHROCARE
Photocosmetic device
An apparatus is disclosed for use by a consumer in a non-medical setting that uses at least one low power electromagnetic radiation source in a suitable device that can be positioned over a treatment area for a substantial period of time or can be moved over the treatment area one or more times during each treatment. The apparatus can be moved over or applied to or near the consumer's skin surface as light or other electromagnetic radiation is applied to the skin. The apparatus contains a control system that controls the radiation source, which may include various sections that are controlled independently.
Owner:PALOMAR MEDICAL TECH
Handheld Photocosmetic Device
InactiveUS20080058783A1Maintain and improve benefitSimple designDiagnosticsControlling energy of instrumentHand heldDermatology
The present invention discloses handheld photocosmetic devices that can be utilized to apply EMR to the skin, e.g., to achieve fractional treatment of the skin. The invention discloses effective fractional photocosmetic devices for use in by a consumer in a non-medical and or non-professional setting. Thus, embodiments of such devices are disclosed herein that have one or more of the following attributes: capable of performing one or more cosmetic and / or dermatological treatments; efficacious for such treatments; durable; relatively inexpensive; relatively simple in design; smaller than existing professional devices (with some embodiments being completely self-contained and hand-held); safe for use by non-professionals; and / or not painful to use (or only mildly painful).
Owner:PALOMAR MEDICAL TECH
Material delivery system
InactiveUS20060190022A1Relief from rhinitisAvoid transmissionStentsBalloon catheterSurgeryTarget tissue
A method for injecting a therapeutic agent into a target tissue, the method comprising: (a) providing an expandable member; (b) positioning said expandable member in proximity to the target tissue; (c) Introducing the therapeutic agent into the expandable member until a desired pressure is achieved; and (d) creating a plurality of small apertures in the expandable member.
Owner:BY PASS
Methods for electrosurgical tissue contraction within the spine
The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for treating herniated or swollen discs within a patient's spine by applying sufficient electrical energy to the disc tissue to contract or shrink the collagen fibers within the nucleus pulposis. This causes the pulposis to shrink and withdraw from its impingement on the spinal nerve.
Owner:ARTHROCARE
Cooling system for a photo cosmetic device
Photocosmetic device for use in medical or non-medical environments (e.g., a home, barbershop, or spa), which can be used for a variety of tissue treatments. Radiation is delivered to the tissue via optical systems designed to pattern the radiation and project the radiation to a particular depth. The device has a variety of cooling systems including phase change cooling solids and liquids to cool treated skin and the radiation sources. Contact sensors and motion sensor may be used to enhance treatment. The device may be modular to facilitate manufacture and replacement of parts.
Owner:PALOMAR MEDICAL TECH
Systems and methods for controlling power in an electrosurgical probe
InactiveUS7582084B2Avoid problemsAccelerated programControlling energy of instrumentSurgical instruments for heatingControl powerCharring
Systems and methods for controlling the power supplied to an electrosurgical probe. The systems and methods may be used to monitor electrode-tissue contact, adjust power in response to a loss of contact, and apply power in such a manner that charring, coagulum formation and tissue popping are less likely to occur.
Owner:BOSTON SCI SCIMED INC
Method and apparatus for controlling contact of biomedical electrodes with patient skin
A method of monitoring the contact of a biomedical electrode to skin of a patient is disclosed, where the phase angle of current flow through one portion of the electrode is compared to the phase angle of current flow through another portion of the electrode. The two portions are both electrical conductors, one having a lossy dielectric surface and the other bare metal. Any monitoring of an electrical interface is possible based on the difference in phase angle. Lift of any portion of the electrode from contact with skin of a patient can be monitored more easily than using conventional Contact Quality Monitoring circuitry and "split plate patient plates."
Owner:3M INNOVATIVE PROPERTIES CO
Dual mode electrosurgical clamping probe and related methods
InactiveUS6974453B2Minimize damageAvoid and minimize currentCannulasEnemata/irrigatorsDual modeSurgical department
The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ of a patients. An electrosurgical apparatus of the invention includes a shaft having a shaft distal end bearing an active electrode and a return electrode. At least one of the active electrode and the return electrode is moveable such that the shaft distal end can adopt a closed configuration or an open configuration. The apparatus can operate in an ablation mode or a sub-ablation mode. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue. The present invention allows the ablation or modification of the target tissue with minimal or no damage to surrounding, non-target tissue.
Owner:ARTHROCARE
Method for harvesting graft vessel
InactiveUS6915806B2Improves surgeon 's viewThermal damage is minimizedCannulasEnemata/irrigatorsSaphenous veinsMammary artery
The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to incise, dissect, harvest or transect tissues or an organ of a patient. The electrosurgical systems and methods are useful, inter alia, for accessing, dissecting, and transecting a graft blood vessel, such as the internal mammary arteries (IMA) or the saphenous vein, for use in a by-pass procedure. A method of the present invention comprises positioning an electrosurgical probe adjacent the target tissue so that one or more active electrode(s) are brought into at least partial contact or close proximity with a target site in the presence of an electrically conductive fluid. A high frequency voltage is then applied between the active electrode and one or more return electrode(s). During application of the high frequency voltage, the electrosurgical probe may be translated, reciprocated, or otherwise manipulated such that the active electrode is moved with respect to the tissue. The present invention volumetrically removes the tissue at the point of incision, dissection, or transection in a cool ablation process that minimizes thermal damage to surrounding, non-target tissue.
Owner:ARTHROCARE
Method for electrosurgical tissue treatment near a patient's heart
InactiveUS7217268B2Control depthControl damageEnemata/irrigatorsHeart valvesElectricityHigh frequency power
An electrosurgical probe (10) comprises a shaft (13) having an electrode array (58) at its distal end and a connector (19) at its proximal end for coupling the electrode array to a high frequency power supply (28). The shaft includes a return electrode (56) recessed from its distal end and enclosed within an insulating jacket (18). The return electrode defines an inner passage (83) electrically connected to both the return electrode and the electrode array for passage of an electrically conducting liquid (50). By applying high frequency voltage to the electrode array and the return electrode, the electrically conducting liquid generates a current flow path between the return electrode and the electrode array so that target tissue may be cut or ablated. The probe is particularly useful in dry environments, such as the mouth or abdominal cavity, because the electrically conducting liquid provides the necessary return current path between the active and return electrodes.
Owner:ARTHROCARE
Method for permanent hair removal
InactiveUS6168590B1Reduce generationMinimize damageControlling energy of instrumentLight therapyHair growthHair follicle
A method for permanently removing hair utilizes the hair shaft and hair ducts to transmit light into the tissue sustaining the hair follicle, thereby permanently destroying or modifying the tissue in a manner which desirably mitigates hair growth. The method includes the steps of covering the patient's skin area with a high reflectance substance so as to substantially protect all skin components other than those sustaining the hair. The hair is optionally shaved or pulled out, and then the skin is illuminated with either a large-area electromagnetic radiation field for simultaneous destruction of multiple hair-follicles, or alternatively with a tightly-focused beam which destroys one hair at a time. Optionally, the beam may be rapidly scanned so as to destroy single hairs quickly in succession. The surrounding skin region is left substantially free of injury. This mitigates pain and enhances post hair removal healing.
Owner:Y BEAM TECH
Graphical user interface for association with an electrode structure deployed in contact with a tissue region
Systems and methods deploy an electrode structure in contact with the tissue region. The electrode structure carries a sensor at a known location on the electrode structure to monitor an operating condition. The systems and methods provide an interface, which generate an idealized image of the electrode structure and an indicator image to represent the monitored operating condition in a spatial position on the idealized image corresponding to the location of the sensor on the electrode structure. The interface displays a view image comprising the idealized image and indicator image. The systems and methods cause the electrode structure to apply energy to heat the tissue region while the view image is displayed on the display screen.
Owner:MEDERI RF LLC
Methods for electrosurgical tissue treatment in electrically conductive fluid
InactiveUS7169143B2Control depthReducing power delivery and ablation rateDiagnosticsHeart valvesTarget tissueLow impedance
Owner:ARTHROCARE
Intervertebral disc replacement method
InactiveUS7104986B2Minimize damageMinimize necrosisCannulasEnemata/irrigatorsFiberIntervertebral disc arthroplasty
The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for removing a vertebral disc in preparation for implanting a prosthetic disc or removing a portion of the vertebral disc such as the nucleus pulposus in preparation for placing a prosthetic nucleus within the annulus of the disc. The present invention also teaches shrinking residual tissue in preparation for placing the implants.
Owner:ARTHROCARE
Tissue biopsy and treatment apparatus and method
InactiveUS7025765B2Improve clinical outcomesPrecise positioningElectrotherapySurgical needlesSensor arrayTissue biopsy
A method of treating a tumor includes providing a tissue biopsy and treatment apparatus that includes an elongated delivery device that has a lumen and is maneuverable in tissue. A sensor array having a plurality of resilient members is deployable from the elongated delivery device. At least one of the plurality of resilient members is positionable in the elongated delivery device in a compacted state and deployable with curvature into tissue from the elongated delivery device in a deployed state. At least one of the plurality of resilient members includes at least one of a sensor, a tissue piercing distal end or a lumen. The sensor array has a geometric configuration adapted to volumetrically sample tissue at a tissue site to differentiate or identify tissue at the tissue site. At least one energy delivery device is coupled to one of the sensor array, at least one of the plurality of resilient members or the elongated delivery device. The apparatus is then introduced into a target tissue site. The sensor array is then utilized to distinguish a tissue type. The tissue type information derived from the sensor array is utilized to position the energy delivery device to ablate a tumor volume. Energy is then delivered from the energy delivery device to ablate or necrose at least a portion of the tumor volume. The sensor array is then utilized to determine an amount of tumor volume ablation.
Owner:ANGIODYNAMICS INC
Photocosmetic device
An apparatus is disclosed for use by a consumer in a non-medical setting that uses at least one low power optical radiation source in a suitable device that can be positioned over a treatment area for a substantial period of time or can be moved over the treatment area one or more times during each treatment. The apparatus can be moved over or applied to or near the consumer's skin surface as light or other electromagnetic radiation is applied to the skin.
Owner:PALOMAR MEDICAL TECH
Methods for treating the cardia of the stomach
Methods treat a tissue region. In one arrangement, the methods deploy an electrode on a support structure in a tissue region at or near the cardia of the stomach. In one embodiment, the support structure has a proximal region and a distal region. The proximal region is enlarged in comparison to the distal region, and the electrode is carried by the enlarged proximal surface. The methods advance the electrode in a path to penetrate the tissue region and couple the electrode to a source of radio frequency energy to ohmically heat tissue and create a lesion in the tissue region.
Owner:TYCO HEALTHCARE GRP LP
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