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80 results about "Radiosurgery" patented technology
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Radiosurgery is surgery using radiation, that is, the destruction of precisely selected areas of tissue using ionizing radiation rather than excision with a blade. Like other forms of radiation therapy (also called radiotherapy), it is usually used to treat cancer. Radiosurgery was originally defined by the Swedish neurosurgeon Lars Leksell as "a single high dose fraction of radiation, stereotactically directed to an intracranial region of interest".
Combinations and modes of administration of therapeutic agents and combination therapy
InactiveUS20070166388A1Heavy metal active ingredientsOrganic active ingredientsNanoparticleAnti vegf antibody
The present invention provides combination therapy methods of treating proliferative diseases (such as cancer) comprising a first therapy comprising administering to an individual an effective amount of a taxane in a nanoparticle composition, and a second therapy which may include, for example, radiation, surgery, administration of chemotherapeutic agents (such as an anti-VEGF antibody), or combinations thereof. Also provided are methods of administering to an individual a drug taxane in a nanoparticle composition based on a metronomic dosing regime.
Owner:ABRAXIS BIOSCI LLC
Frameless to frame-based registration system
This invention involves apparatus and methods for relating image scan data of a patient's anatomy from an imaging scanner to a device attached to said patient's anatomy or to an apparatus located nearby said patient's anatomy. In one embodiment it includes identification of fiducial points or markers on or near the patient's anatomy in the image scan data, and subsequently relating these fiducial points to reference points or structures connected to an apparatus attached to or nearby the patient's body. Such an apparatus might be a surgical head clamp or stereotactic frame or arc which has been attached to the patient's head at the time of surgery. A mapping is made between the coordinate frame data of the scan image to the coordinate reference frame of the patient attachment means or external apparatus by physically referencing the fiducial points to the patient attachment means or external apparatus. In one embodiment, such registration can be in the form of distance or coordinate measurements between the fiducial points on the patient's body and the reference points on the external apparatus. Applications are given in the field of frameless stereotaxy, radiosurgery, and stereotactic frame application.
Owner:INTEGRA BURLINGTON MA
Apparatus and method for determining measure of similarity between images
ActiveUS7187792B2Robust and accurate and efficientImage enhancementImage analysisX ray imageDigital image
A method and system is presented in image-guided radiosurgery for determining the measure of similarity of two digital images, for example a 2D x-ray image and a 2D DRR synthesized from 3D scan data. A two-dimensional array of pixel values of a difference image is formed by subtracting each pixel value of the second image from the corresponding pixel value of the first image. The pattern intensity function is constructed by taking the summation of asymptotic functions of the gradients of the difference image. The neighborhood R is defined so as to allow the gradients of the difference image to be considered in at least four directions.
Owner:ACCURAY
Shaped biocompatible radiation shield and method for making same
InactiveUS7109505B1Reduce low energy radiationPrevent regenerationRadiation/particle handlingElectrode and associated part arrangementsRadiosurgeryProximate
A radiation applicator system is structured to be mounted to a radiation source for providing a predefined dose of radiation for treating a localized area or volume, such as the tissue surrounding the site of an excised tumor. The applicator system includes an applicator and an adapter. The adapter is formed for fixedly securing the applicator to a radiation source, such as a radiosurgery system which produces a predefined radiation dose profile with respect to a predefined location along the radiation producing probe. The applicator includes a shank and an applicator head, wherein the head is located at a distal end of the applicator shank. A proximate end of the applicator shank couples to the adapter. A distal end of the shank includes the applicator head, which is adapted for engaging and / or supporting the area or volume to be treated with a predefined does of radiation. The applicator can include a low energy radiation filter inside of the applicator head to reduce undesirable low energy radiation emissions. A biocompatible radiation shield may be coupled to the outer surface of the applicator head to block radiation emitted from a portion of the radiation probe, in order to shield an adjacent location or vital organ from any undesired radiation exposure. A plurality of applicators having applicator heads and radiation shields of different sizes and shapes can be provided to accommodate treatment sites of various sizes and shapes.
Owner:CARL ZEISS STIFTUNG DOING BUSINESS CARL ZEISS
Orthovoltage radiotherapy
ActiveUS20080212738A1Dry up neovascular membraneStabilized and improved acuityHandling using diaphragms/collimetersRadiation beam directing meansRadiosurgeryBeam energy
A radiosurgery system is described that is configured to deliver a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, other disorders or tissues of a body are treated with the dose of radiation. In some embodiments, the target tissues are placed in a global coordinate system based on ocular imaging. In some embodiments, the target tissues inside the global coordinate system lead to direction of an automated positioning system that is directed based on the target tissues within the coordinate system. In some embodiments, a treatment plan is utilized in which beam energy and direction and duration of time for treatment is determined for a specific disease to be treated and / or structures to be avoided. In some embodiments, a fiducial marker is used to identify the location of the target tissues. In some embodiments, radiodynamic therapy is described in which radiosurgery is used in combination with other treatments and can be delivered concomitant with, prior to, or following other treatments.
Owner:CARL ZEISS MEDITEC INC
Method for automatized dose planning
InactiveUS6385477B1Eliminate disadvantagesEliminate the problemMaterial analysis using wave/particle radiationRadiation/particle handlingRadiosurgeryProgram planning
A method and device are used for automatized dose planning in stereotactic radiosurgery. The method comprises the steps of: inputting into a computer location data on the target volume to be irradiated; positioning in the dose plan a number of shots having a preliminary weight, in certain preliminary positions in the target volume; and by an iterative minimizing method, minimizing the dose plan with respect to shot positions and shot weights.
Owner:ELEKTA AB
Deterministic computation of radiation doses delivered to tissues and organs of a living organism
InactiveUS20050143965A1Improve computing efficiencyHigh solution accuracyDosimetersComputation using non-denominational number representationInternal radiationIntensity modulation
Various embodiments of the present invention provide methods and systems for deterministic calculation of radiation doses, delivered to specified volumes within human tissues and organs, and specified areas within other organisms, by external and internal radiation sources. Embodiments of the present invention provide for creating and optimizing computational mesh structures for deterministic radiation transport methods. In general these approaches seek to both improve solution accuracy and computational efficiency. Embodiments of the present invention provide methods for planning radiation treatments using deterministic methods. The methods of the present invention may also be applied for dose calculations, dose verification, and dose reconstruction for many different forms of radiotherapy treatments, including: conventional beam therapies, intensity modulated radiation therapy (“IMRT”), proton, electron and other charged particle beam therapies, targeted radionuclide therapies, brachytherapy, stereotactic radiosurgery (“SRS”), Tomotherapy®; and other radiotherapy delivery modes. The methods may also be applied to radiation-dose calculations based on radiation sources that include linear accelerators, various delivery devices, field shaping components, such as jaws, blocks, flattening filters, and multi-leaf collimators, and to many other radiation-related problems, including radiation shielding, detector design and characterization; thermal or infrared radiation, optical tomography, photon migration, and other problems.
Owner:TRANSPIRE
Renovascular treatment device, system, and method for radiosurgically alleviating hypertension
InactiveUS20120323233A1Reduce high blood pressureImprove securitySurgical instruments for heatingX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryCardiorenal disease
A radiosurgical method for treating cardiorenal disease of a patient, the method including directing radiosurgery radiation from outside the patient towards one or more target treatment regions encompassing sympathetic ganglia of the patient so as to inhibit the cardiorenal disease. In an exemplary embodiment, the method further includes acquiring three dimensional planning image data encompassing the first and second renal arteries, planning an ionizing radiation treatment of first and second target regions using the three dimensional planning image data so as to mitigate the hypertension, the first and second target regions encompassing neural tissue of or proximate to the first and second renal arteries, respectively, and remodeling the target regions by directing the planned radiation from outside the body toward the target regions.
Owner:CYBERHEART
Combinations and modes of administration of therapeutic agents and combination therapy
ActiveUS20090304805A1Heavy metal active ingredientsOrganic active ingredientsNanoparticleAnti vegf antibody
The present invention provides combination therapy methods of treating proliferative diseases (such as cancer) comprising a first therapy comprising administering to an individual an effective amount of a taxane in a nanoparticle composition, and a second therapy which may include, for example, radiation, surgery, administration of chemotherapeutic agents (such as an anti-VEGF antibody), or combinations thereof. Also provided are methods of administering to an individual a drug taxane in a nanoparticle composition based on a metronomic dosing regime.
Owner:ABRAXIS BIOSCI LLC
Lethal and sublethal damage repair inhibiting image guided simultaneous all field divergent and pencil beam photon and electron radiation therapy and radiosurgery
InactiveUS7835492B1Improve modulationIncrease radiation intensityIrradiation devicesX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryC banding
A medical accelerator system is provided for simultaneous radiation therapy to all treatment fields. It provides the single dose effect of radiation on cell survival. It eliminates the inter-field interrupted, subfractionated fractionated radiation therapy. Single or four beams S-band, C-band or X-band accelerators are connected to treatment heads through connecting beam lines. It is placed in a radiation shielding vault which minimizes the leakage and scattered radiation and the size and weight of the treatment head. In one version, treatment heads are arranged circularly and connected with the beam line. In another version, a pair of treatment heads is mounted to each ends of narrow gantries and multiple such treatment heads mounted gantries are assembled together. Electron beam is steered to all the treatment heads simultaneously to treat all the fields simultaneously. Radiating beam's intensity in a treatment field is modulated with combined divergent and pencil beam, selective beam's energy, dose rate and weight and not with MLC and similar devices. Since all the treatment fields are treated simultaneously the dose rate at the tumor site is the sum of each of the converging beam's dose rate at depth. It represents the biological dose rate. The dose rate at d-max for a given field is the individual machine dose rate. Its treatment options includes divergent or pencil beam modes. It enables to treat a tumor with lesser radiation toxicities to normal tissue and higher tumor cure and control.
Owner:SAHADEVAN VELAYUDHAN
Single session interactive ultra-short duration super-high biological dose rate radiation therapy and radiosurgery
A medical accelerator system consisting of coplanar and non-coplanar beams, on line magnetic resonance anatomic and functional imaging and cone beam computed tomographic imaging for single session image guided all field simultaneous radiation therapy and radiosurgery is provided. This system enables single session simulation, field-shaping block making, treatment planning, dose calculations and treatment of tumors. The radiation exposure time to the tumor and the normal tissue is reduced to a few seconds to less than a minute. In filed intensity modulated radiation is rendered by combined divergent and pencil beam, multiple smaller fields within a larger field, selectively varying beam's energy, dose rate and beam weight. Since all the treatment fields are treated simultaneously the dose rate at the tumor site is the sum of each of the converging beam's dose rate at depth. This super-high biological dose rate impairs the lethal and sublethal damage repair.
Owner:SAHADEVAN VELAYUDHAN
Radiosurgery methods that utilize stereotactic methods to precisely deliver high dosages of radiation especially to the spine
InactiveUS6665555B2Reduce decreaseAvoiding and minimizing deliveryRadiation diagnostic clinical applicationsSurgeryRadiosurgeryStereotaxis
Owner:GEORGETOWN UNIV
Method of image guided intraoperative simultaneous several ports microbeam radiation therapy with microfocus X-ray tubes
This invention pertains to a method of low-cost intraoperative all field simultaneous parallel microbeam single fraction few seconds duration 100 to 1,000 Gy and higher dose radiosurgery with micro-electro-mechanical systems (MEMS)-carbon nanotube based microaccelerators. It ablates cancer cells including the mesenchymal epithelial transformation associated cancer stem cells. Microbeam brachy-therapeutic radiosurgery is performed. Microaccelerators are configured for simultaneous parallel microbeam emission from varying angels to an isocentric tumor. Their additive dose rate at the isocentric tumor is in the range of 10,000 to 20,000 Gy / s. It eliminates most tumor recurrence and metastasis which enhances cancer cure rates. It also exposes cancer antigens which induces cancer immunity. Stereotactic breast core biopsy is combined with, positron emission tomography and computerized tomography and phase-contrast imaging. Parallel microbeam brachytherapy preserves normal breast appearance. Migration of normal stem cells from unirradiated valley regions heals the radiation damage to the normal tissue.
Owner:SAHADEVAN VELAYUDHAN
Combinations and modes of administration of therapeutic agents and combination therapy
InactiveUS20130195984A1Heavy metal active ingredientsRadioactive preparation carriersNanoparticleAnti vegf antibody
The present invention provides combination therapy methods of treating proliferative diseases (such as cancer) comprising a first therapy comprising administering to an individual an effective amount of a taxane in a nanoparticle composition, and a second therapy which may include, for example, radiation, surgery, administration of chemotherapeutic agents (such as an anti-VEGF antibody), or combinations thereof. Also provided are methods of administering to an individual a drug taxane in a nanoparticle composition based on a metronomic dosing regime.
Owner:ABRAXIS BIOSCI LLC
Treatment plan optimization method for radiotherapy
ActiveUS8009803B2Minimizes deliveryNot to damageX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryProgram planning
Systems and methods for providing radiosurgery treatment to a patient by combining methods from both traditional radiosurgery and radiotherapy are disclosed. A dose sufficient to kill tissue is applied to a target area while a steep drop off, or gradient, is provided at the border between the target area and adjacent areas so that other portions of the brain or nearby structures or organs are not damaged. The treatment plan is optimized by using both measures known in the art along with a new gradient index or curve that indicates the amount of the drop off at the border between the target area and the surrounding tissues.
Owner:SIEMENS HEALTHINEERS INT AG
Method and Apparatus Including Use of Metalloporphyrins for Subsequent Optimization of Radiosurgery and Radiotherapy
InactiveUS20070043289A1Selective uptakeEfficient deliveryTelevision system detailsTelevision system scanning detailsRadiosurgeryDual delivery
Owner:ADAIR
System and method for three-dimensional dose verification in radiosurgery
InactiveCN105854191AVerify accuracyImprove Dose Verification AccuracyX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryDose verification
The invention provides a system and method for three-dimensional dose verification in radiosurgery. First a patient's image data and radiotherapy planning data are led in through a data management module, a patient's actual illuminated three-dimensional dose field distribution during the treatment is quickly reconstructed by utilization of a two-dimensional field size dosage collecting module and a three-dimensional dose inversion module; three-dimensional evaluation analysis is performed on a irradiation dose and a planning dose through a dose evaluation module; whether an error is in a permissible range is judged; if the error is in the permissible range, the patient is treated according to a radiotherapy plan, or else the radiotherapy plan is adjusted or a radiosurgery accelerator is subjected to quality control detection, irradiation is not performed on the patient until the dose verification passes, and the consistency between the irradiation dose and the planning dose is guaranteed finally. According to the system and method for three-dimensional dose verification in radiosurgery, the shortcoming of two-dimensional plane dose verification of using water instead of a person prior to existing treatment is overcome, and precise dose verification of three-dimensional space dose field distribution in the patient prior to fractionated treatment and during the fractionated treatment can be implemented.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Radiation therapy techniques using targeted wave superposition, magnetic field direction and real-time sensory feedback
New techniques for radiotherapy and radiosurgery are provided. In some aspects of the invention, multiple sources of radiation with a frequency, phase and polarization that are projected to constructively interfere at a treatment target are provided. In other aspects, hardware directs multiple radiation sources from the same side of a treatment target, and focuses the initiation of substantial interference on a leading structure in the target. In other aspects, refractive models updated by live feedback are used to improve dosage distribution by, among other things, optimizing the number, length, superposition overlap, angle and nature of radiation beams. In additional aspects, interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are also provided, to improve dosage accuracy and avoid collateral damage.
Owner:BECKMAN CHRISTOPHER V
Novel radiosurgery methods that utilize stereotactic methods to precisely deliver high dosages of radiation especially to the spine
InactiveUS20020032378A1Reduce decreaseAvoiding and minimizing deliveryRadiation diagnostic clinical applicationsSurgeryRadiosurgeryStereotaxis
A system for delivery of high dosage of radiation to a targeted spinal area is provided. This is accomplished by a system which provides for precise immobilization and positioning of the treated spinal area during dose planning and treatment via stereotactic radiosurgery. Advantages of the system include convenience to the patient, enhanced efficacy, and reduced risk of radiotoxicity to non-target tissues.
Owner:GEORGETOWN UNIV
Accurate stereotactic radiosurgery treatment device
InactiveCN107362464AMechanical balance counterweight problem solvingReduce shielding requirementsX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryEngineering
The invention provides an accurate stereotactic radiosurgery treatment device which belongs to the field of a medical device. The accurate stereotactic radiosurgery treatment device is composed of a radiation device system, a six-dimensional robot treatment bed 1 and a treatment planning system. The radiation device system is composed of a frame 12 and a C-shaped machine arm 5. The frame 12 is provided with a rotating shaft 10. The rotating shaft 10 is connected with a guiderail 9 and controls rotation of the guiderail 9. The C-shaped machine arm 5 is mounted on the guiderail 9 and performs arc-shaped motion along the guiderail 9. One end of the C-shaped machine arm 5 is provided with a radiation source 2. The bottom end of the radiation source 2 is provided with a small machine head 3. The bottom end of the small machine head 3 is provided with a collimator. The other end of the C-shaped machine arm 5 is provided with a telescopic electronic portal imaging device 7 and a movable shielding protecting counterweight 8. A target organ positioning and detecting device 6 is mounted at the side part or the lower part of the six-dimensional robot treatment bed 1. The radiation treatment head of the accurate stereotactic radiosurgery treatment device can perform 90-degree (or + / -45-degree) rotation around an X axis so that rays can be transmitted in a 4pi non-coplanar track.
Owner:吴大可
Immobilizing assembly and methods for use in diagnostic and therapeutic procedures
InactiveUS20060173390A1Improve image qualityComfortable postureRestraining devicesNon-surgical orthopedic devicesRadiosurgeryStereotaxis
Herein described is an apparatus and method for stabilizing, restraining and positioning a patient during human medical or veterinary procedures, for example, diagnostic imaging procedures, such as Magnetic Resonance Imaging (MRI) and Computerized Tomography scanning procedures, or therapeutic procedures, such as stereotactic radiosurgery. The restraining apparatus of the present invention, comprised of a castable sleeve and optional expandable element, sufficiently immobilizes the patient so as to eliminate motion artifact and motion degradation, to thereby provide improved imaging and / or therapy results.
Owner:VAN WYK ROBERT +3
Radiotherapeutic apparatus
ActiveUS8059782B2Limited lifetimeLow efficiencyHandling using diaphragms/collimetersX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryImage resolution
The present invention seeks to provide a radiotherapeutic apparatus that mitigates the various problems found in the techniques such as tomotherapy, IMAT, IMRT and the like. It provides a radiotherapeutic apparatus comprising a source of radiation whose output is collimated by a multi-leaf collimator, and a patient support, the source being rotatable around the support and the support being translatable along the axis of rotation, thereby to move the source helically relative to a patient on the support. The leaves of the MLC are preferably oriented orthogonal to the axis of rotation, to simplify computation of the dose distribution. The apparatus thus moves the patient on the patient support system along the axis of rotation, in the longitudinal direction. Thus, the device has an effectively unlimited treatable volume in the longitudinal direction and avoids the limitations of IMAT and IMRT techniques whilst enabling the use of thin MLC leaves to give a high longitudinal resolution. The apparatus is preferably combined with an optimization system providing a computational service similar to that provided for IMAT and IMRT devices. Essentially the same computational techniques could be used, with appropriate changes to the input conditions and characteristic equations. The long aperture length (compared to tomotherapy) makes the radiation delivery efficient and therefore the delivery of high doses a practicality; hypofractionation and radiosurgery therefore become possible over large treatable volumes.
Owner:ELEKTA AB
Method and equipment for image-guided stereotactic radiosurgery of breast cancer
ActiveUS20100094119A1Monitor safetyMonitor operationMagnetic measurementsSterographic imagingStereotactic neurosurgeryEarly breast cancer
A method of treating a cancerous region in a breast of a patient comprising (i) imaging the breast in a three-dimensional coordinate system, (ii) stereotactically determining the location of the cancerous region in the breast, (iii) optionally determining the volume of the entire cancerous region to be treated, and (iv) while maintaining the breast in a three-dimensional coordinate system that is identical to or corresponds with the three-dimensional coordinate system used in (i), noninvasively exposing the cancerous region of the breast of the patient to a cancer-treatment effective dose of radiation; and equipment for use in such a method.
Owner:XCISION MEDICAL SYST +1
Image guided intraoperative simultaneous several ports microbeam radiation therapy with microfocus X-ray tubes
A microbeam intraoperative, 10-50 kilovoltage radiation therapy system with multiple simultaneous microfocus X-ray sources and method for image guided, microsecond duration, 100 to 1,000 Gy microbeam radiation therapies with dose rate ranging from 1,000 to 20,000 Gy per second and RBE closer to high LET with minimal toxicity to normal tissue is provided. Dismountable coronal, sagital and transverse half-circle gantry sections are assembled on to a surgical table for mounting the microfocus X-ray sources for intraoperative radiosurgery. A stereotactic breast core biopsy system is adapted for combined breast biopsy, positron emission tomography and computerized tomography with phase-contrast imaging. Cosmetic whole breast preserving electronic brachytherapy is combined with stereotactic core biopsy. The low dose valley regions of the intersecting microbeams at the tumor site are filled with scattered and characteristic radiation from high Z-element that is bound or implanted into the tumor.
Owner:SAHADEVAN VELAYUDHAN
Orthovoltage radiosurgery
InactiveUS20080247510A1Dry up neovascular membraneStabilized and improved acuityHandling using diaphragms/collimetersRadiation diagnosticsRadiosurgeryDisease
Owner:CARL ZEISS MEDITEC INC
Treatment Plan Optimization Method For Radiosurgery
ActiveUS20110075806A1Minimizes deliveryNot to damageX-ray/gamma-ray/particle-irradiation therapyRadiosurgeryProgram planning
Systems and methods for providing radiosurgery treatment to a patient by combining methods from both traditional radiosurgery and radiotherapy are disclosed. A dose sufficient to kill tissue is applied to a target area while a steep drop off, or gradient, is provided at the border between the target area and adjacent areas so that other portions of the brain or nearby structures or organs are not damaged. The treatment plan is optimized by using both measures known in the art along with a new gradient index or curve that indicates the amount of the drop off at the border between the target area and the surrounding tissues.
Owner:SIEMENS HEALTHINEERS INT AG
Radiation Therapy Techniques Using Targeted Wave Superposition, Magnetic Field Direction and Real-Time Sensory Feedback
New techniques for radiotherapy and radiosurgery are provided. In one aspect of the invention, multiple sources of radiation are provided in a planned frequency and in the same superposable period and polarization, from the same side of a treatment target, focused on a leading structure in the target. In another aspect, refractive models, updated by live feedback, are used to improve dosage distribution by, among other things, optimizing the number, angle and nature of radiation beams. Interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are used as well, to improve dosage accuracy and avoid collateral damage.
Owner:BECKMAN CHRISTOPHER V
Radiation therapy techniques using targeted wave superposition, magnetic field direction and real-time sensory feedback
New techniques for radiotherapy and radiosurgery are provided. In some aspects of the invention, multiple sources of radiation with characteristics that are projected to constructively interfere at a treatment target are provided. In other aspects, hardware directs multiple radiation sources from the same side of a treatment target, and focuses the initiation of substantial interference on a leading structure in the target. In other aspects, refractive models updated by live feedback are used to improve dosage distribution by, among other things, optimizing the number, length, superposition, overlap, angle and nature of radiation beams. In additional aspects, interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are also provided, to improve dosage accuracy and avoid collateral damage.
Owner:BECKMAN CHRISTOPHER V
Radiosurgery Compatible Bone Anchor
InactiveUS20100228300A1Eliminates unacceptable levelSuture equipmentsInternal osteosythesisRadiosurgeryVertebral bone
There is provided an anchoring mechanism / bone anchor comprised of a radiotranslucent material for securing vertebral stabilizing implants to vertebral bone. The anchoring mechanism is preferably a pedicle screw comprised of a fiber material embedded in a radiolucent matrix material.
Owner:ARMSTRONG KEVIN +2
Radiation Therapy Techniques Using Targeted Wave Superposition, Magnetic Field Direction and Real-Time Sensory Feedback
New techniques for radiotherapy and radiosurgery are provided. In some aspects of the invention, multiple sources of radiation with characteristics that are projected to constructively interfere at a treatment target are provided. In other aspects, hardware directs multiple radiation sources from the same side of a treatment target, and focuses the initiation of substantial interference on a leading structure in the target. In other aspects, refractive models updated by live feedback are used to improve dosage distribution by, among other things, optimizing the number, length, superposition, overlap, angle and nature of radiation beams. In additional aspects, interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are also provided, to improve dosage accuracy and avoid collateral damage.
Owner:BECKMAN CHRISTOPHER V
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