11 results about "Radiosurgery" patented technology

The invention discloses anti-radiation hydrogel capable of being used for interventional radiosurgery and a preparation method and application thereof.The anti-radiation hydrogel is in bridge connection with polymer chains of sodium alginate and sodium hyaluronate through the physical interaction between Fe < 3 + > and carboxyl, and the reversible interaction between Fe < 3 + > and carboxyl endows the hydrogel with the shear thinning characteristic; the injectability is ensured; the bismuth oxide nano-particles and the barium sulfate nano-particles are doped to achieve efficient attenuation of X-rays in the range of 20-100 keV, and meanwhile, the complementary K-edge absorption characteristics of the bismuth oxide nano-particles and the barium sulfate nano-particles are utilized, and the radiation absorption effect of a hydrogel network structure is combined, so that broad-spectrum radiation protection is achieved; according to the invention, acrylamide is taken as a raw material, an interpenetrating network elastic hydrogel of three polymers is formed under the action of polymerization under thermal initiation of acrylamide, the conversion from an injectable state to a solid state is realized, and at the moment, the cured hydrogel has tough mechanical properties, can also form a protective layer similar to gloves, and can be used for radiation protection in interventional operations.

The invention discloses an anti-radiation medical protective glove and a production process thereof, and belongs to the technical field of medical protective gloves, a polydopamine hollow microsphere is prepared by using ZIF-8 as a self-sacrifice template, bismuth and gadolinium elements are loaded through hydrothermal synthesis and ion adsorption, a composite shielding microsphere is prepared, and the composite shielding microsphere is used for preparing the anti-radiation medical protective glove. Then, the composite shielding microspheres and a nano starch enhanced cross-linked network are synergistically introduced into a natural latex matrix, after dipping forming, a hydrophilic / hydrophobic wetting gradient is constructed on a glove lining through mask auxiliary plasma etching, and the anti-radiation medical protective glove is prepared. Through the cooperation of the shielding function of the composite microspheres, the mechanical enhancement of a nano starch cross-linked network and the surface one-way moisture conduction function, the glove has excellent radiation protection performance and also has the characteristics of being light, flexible and comfortable to wear, the problems that a traditional lead rubber glove is heavy, rigid and poor in air permeability are effectively solved, and the service life of the glove is prolonged. The system is especially suitable for medical scenes requiring high flexibility and comfort, such as interventional radiosurgery.

The present invention is a system for providing accurate image-guided localization of a radiation target using digital image acquisition with real time data analysis utilizing a radiation device, directing a beam of radiation through a sample reflecting onto a film screen and reflecting an image from the film screen onto a mirror that will project the image from the mirror to a bean splitter where it is captured by a camera operatively associated with a computer device.

An example quality assurance (QA) system for a radiosurgery system is described herein. The system includes an appliance comprising: a housing, an indicator; and an actuator configured to move the indicator; a controller in operable communication with the appliance, where the controller comprises a processor and a memory, the memory having computer-executable instructions stored thereon that, when executed by the processor, cause the processor to: transmit one or more control signals to the appliance in accordance with a QA test protocol, where the QA test protocol comprises moving the actuator from a first position to a second position, the first and second positions being separated by at least a first predetermined distance.

The disclosure describes quality assurance tools / systems for verifying the accuracy of patient positional monitoring systems used for brain therapies, such as gamma radiation therapies. The tools / systems provide a three-dimensional positional evaluation system configured to assess positional accuracy of a high-definition motion monitoring (HDMM) camera system used in a radiosurgery system. The tools / systems include a positioning table comprising a plurality of actuators moveable in respective X, Y and Z dimensions. The positioning table comprises at least one fiducial marker visible to the HDMM camera system. The tools / systems also include a platform coupled to the positioning table. The platform is configured to couple to a head rest of the radiosurgery system and has an upper surface that holds the positioning table while allowing the positioning table to translate in X, Y and Z dimensions relative to the platform.

Methods of treatment and treatment systems for performing radiomodulatory stereotactic radiosurgery to treat brain disorders in which target neural tissues associated with the brain disorder are sensitized to radiation by administration of a molecular substance and / or non-targeted critical structures are protected from radiation by a molecular substance, in order to treat disorders of brain circuitry. Specific embodiments disclose means for treating pain, obesity and drug addiction.

This invention discloses an adaptive positioning headrest device for a stereotactic radiosurgery system, relating to the field of medical device technology. The device includes: a detachable base; a three-dimensional electric adjustment module fixedly connected to the detachable base, the three-dimensional electric adjustment module including left-right adjustment units, front-back adjustment units, and up-down adjustment units, used to adjust the spatial position of the head support; a head support fixed to the three-dimensional electric adjustment module; and a distributed pressure sensor array within the head support, the distributed pressure sensor array including multiple miniature thin-film pressure sensors, the miniature thin-film pressure sensors being disposed below the force-bearing layer of the head support for monitoring slight displacement of the patient's head. This invention achieves rapid and precise electric adjustment of the headrest in three-dimensional space, adapting to the patient's personalized position and reducing the time spent on repeated removal and manual elevation of the scalp.

The invention relates to the technical field of medical auxiliary equipment, and discloses a radiotherapy operation monitoring and adjusting type body position fixing frame which comprises a radiotherapy bed, a leg placing mechanism is arranged at the bottom of the top end of the radiotherapy bed, and the leg placing mechanism is used for placing legs of a patient and can adjust the position according to the height of the patient. The middle part of the top end of the radiotherapy bed is provided with an attaching mechanism, the attaching mechanism is used for attaching the upper body of a patient, the side wall of the radiotherapy bed is provided with a fixing mechanism, the fixing mechanism is used for fixing the upper body of the patient, the top of the side wall of the radiotherapy bed is provided with an arm placing mechanism, and the arm placing mechanism is used for placing the arm of the patient. Through cooperation of the leg placing mechanism, the attaching mechanism and the fixing mechanism, automatic adjustment of the body position fixing assembly can be achieved, cooperation of multiple power units is not needed, and therefore the equipment cost and the complexity of the system can be reduced, and the equipment cost and the later maintenance cost are further reduced.

The disclosure describes systems and assemblies providing chin support of a head of a patient for brain therapies, such as gamma radiation therapies. The chin support can be provided by a chin support assembly with a mounting bracket coupled to support sleeves that can slidably mount to posts of a head rest of a radiosurgery system. The chin support assembly can be used with a face mask for securing a patient in a desired position without requiring a head fixation frame.

The MRI head coil adaptor 300 includes a first part 302 comprising an attachment portion, e.g. a female bayonet attachment 310 on the inner surface. The attachment portion is configured for attachment to a stereotactic frame 100, or to a head fixation pin 102 for the frame. The adaptor has a second part 304, e.g. threaded onto the first part and being height-adjustable relative to the attachment portion, e.g. by rotation. The first and second parts may be non-metallic, for example polymer. A method of securing a patient’s head 500 relative to an MRI coil using the head coil adaptor, and an associated kit of parts is also disclosed. The adaptor may be suitable for use in neurological radiosurgery procedures, where the patient’s head must remain still relative to the MRI head coil during imaging of the brain, to establish a known, fixed frame of reference using a stereotactic frame.

Methods of treatment and treatment systems for performing radiomodulatory stereotactic radiosurgery to treat brain disorders in which target neural tissues associated with the brain disorder are sensitized to radiation by administration of a molecular substance and / or non-targeted critical structures are protected from radiation by a molecular substance, in order to treat disorders of brain circuitry. Specific embodiments disclose means for treating pain, obesity and drug addiction.