98 results about "Medical radiation" patented technology

The present invention relates to a method to measure, record, analyze, and report cumulative radiation exposure to the patient population and provide automated feedback and recommendations to ordering clinicians and consultant radiologists. The data provided from this “radiation scorecard” would in turn be automatically recorded into a centralized data repository (radiation database), which would be independent to the acquisition site, technology employed, and individual end-user. Retrospective analysis can also be performed using a set of pre-defined scorecard data points tied to the individual patient's historical medical imaging database, thereby allowing for comprehensive (both retrospective and prospective) medical radiation exposure quantitative analysis. Patient safety can be improved by a combination of radiation dose reduction, exposure optimization, rigorous equipment quality control (QC), education and training of medical imaging professionals, and integration with computerized physician order entry (CPOE).

A system automatically compares radiotherapy 3D X-Ray images and subsequent images for update and re-planning of treatment and for verification of correct patient and image association. A medical radiation therapy system and workflow includes a task processor for providing task management data for initiating image comparison tasks prior to performing a session of radiotherapy. An image comparator, coupled to the task processor, in response to the task management data, compares a first image of an anatomical portion of a particular patient used for planning radiotherapy for the particular patient, with a second image of the anatomical portion of the particular patient obtained on a subsequent date, by image alignment and comparison of image element representative data of aligned first and second images to determine an image difference representative remainder value and determines whether the image difference representative remainder value exceeds a first predetermined threshold. An output processor, coupled to the image comparator, initiates generation of an alert message indicating a need to review planned radiotherapy treatment for communication to a user in response to a determination the image difference representative remainder value exceeds a predetermined threshold.

The invention discloses a method for enhancing medical X-ray image display effect, and relates to a digital image technology. The image enhancing method is completed through the following methods and steps: image pyramid (funnel-shaped) decomposition, excessive contrast inhibition, detail contrast enhancement, edge enhancement, noise suppression and pyramid (funnel-type reconstruction). By adjusting the pixel dynamic range distribution of an image, the method improves the detail signal of the image, enhance the contrast, the clarity and the permeability of the digital image, suppress the noise, and realize the effect of image organization edge contrast improvement, organization detail performance and permeable and visible overall image organization. The method for enhancing medical X-ray image display effect is particularly applicable to computer-controlled X-ray CT scanners or medical radiation image processing systems.

The invention discloses an optics detecting device which comprises a base, a vertical slide rail, a rotating slide rail and a visual probe; the base is provided with a first driving mechanism which is connected with the bottom of the vertical slide rail and drives the vertical slide rail to rotate horizontally around the vertical axis of the base; the vertical slide rail is provided with a second driving mechanism which is connected with the rotating slide rail and drives the rotating slide rail to rotate around the transverse axis at the upper end of the vertical slide rail; the rotating slide rail is provided with a third driving mechanism which is connected with one end of the visual probe and drives the visual probe to move along the axis of the rotating slide rail in parallel. In the invention, flare information incident from any angle can be captured by using a single sampling surface, no detection blind area exists in the hemisphere range, thus the device facilitates the detection work greatly. The space linear equation of a beam central axis can be constructed without moving the detecting device, improving the detecting accuracy. The device is low in weight, small in size and has short detection time and is particularly suitable for optics positioning detection of medical radiation and a radiotherapy device.

The invention belongs to radiological safety protection equipment, particularly relating to an automatic safety protection device for preventing medical radiation. A top frame is fixed at the upper ends of two upright posts, respectively forming a half-T structure or a T structure; horizontal and longitudinal slide ways are fixed on the top frame; two lead-covered rolling curtain boxes are fixed under the longitudinal slide way and can slide horizontally and longitudinally; a lead-covered rolling curtain is extended out of and suspended under each lead-covered rolling curtain box; a control box is fixed at the intersecting position between the top frame and the upright posts or is suspended on a wall; a remote control box is fixed on the control box; and the two lead-covered rolling curtain boxes of a main protection part are respectively fixed at the two sides of the top frame. The invention has the beneficial effects that: the protective lead-covered curtain can be flexibly regulated to widen the protection range aiming at patients of different statures, thereby reducing radiation dosage of the patients and greatly lessening radiation hurt on the patients; moreover, no harm is brought to operators. The device has the advantages of simple and convenient operation, high reaction speed, reasonable structural design, low production cost and easy promotion.

The invention relates to a medical radiation-resistant polyvinyl chloride resin material which is prepared from the following components in parts by weight: 100 parts of polyvinyl chloride powder, 30-55 parts of plasticizer, 0.5-2 parts of calcium-zinc stabilizer, 0.05-0.2 part of main antioxidant, 0.05-0.6 part of phosphite auxiliary antioxidant, 3-10 parts of epoxy soybean oil, 0.05-0.25 part of calcium stearate, 0.05-0.25 part of zinc stearate and 0.05-0.1 part of lubricant. The polyvinyl chloride material provided by the invention can satisfy the requirements for medical polyvinyl chloride, does not become yellow or degraded after being radiated by a high-energy electron accelerator, and can be used for preparing disposable medical appliances sterilized by radiation of an electron accelerator.

The present invention discloses a medical ray protection spray capable of protecting human body against injury due to radiation ray The effective components of said spray include (by wt%) 0.002-0.3% of superoxide dismutase, 0.01% of pentose, 0.1% of polyethylene glycol 6000, 0.1% of witamin C 0.1% of potassium sorbate and the rest is distilled water. Besides, said invention also provides its preparation method.

The invention provides a semi-automatic preparing and injecting system of a radioactive medicine, belonging to the field of nuclear medicine devices. The semi-automatic preparing and injecting system comprises a medicine preparation mechanism and an injection mechanism, wherein the medicine preparation mechanism comprises a medicine preparation module mechanical arm (6), a medicine bottle placement part (7) and a radiation operating table; the injection mechanism comprises an injection operating table (4), an injection syringe carrier (9) and an injection module mechanical arm (3), the injection module mechanical arm (3) clamps an injection syringe (14) from the injection syringe carrier (9) and then moves to be below an injection connecting rod (2), the injection syringe (14) on the injection module mechanical arm (3) is connected with a medicine preparation connecting needle, and is used for extracting liquid medicine from negative pressure collecting bottles on the medicine bottle placement part (7), and injecting the liquid medicine into a plurality of medicine preparation bottles, and the injection connecting rod (2) drives the injection syringe (14) to extract the liquid medicine from the medicine preparation bottles and inject the liquid medicine into the body of a patient. With the adoption of the semi-automatic preparing and injecting system, the direct contact between medical workers and the radioactive medicine can be avoided, the medical workers are protected against the medical radiation as far as possible; meanwhile, the semi-automatic preparing and injecting system is simple in structure, easy to manufacture, and low in cost, and is practical, simple and convenient.

The invention relates to electromagnetic-wave-radiation-resistant dry-mixed mortar making use of barium slag. The electromagnetic-wave-radiation-resistant dry-mixed mortar is composed of, by weight, 40-55 parts of solid solution, 15-25 parts of iron tailings, 20-38 parts of gypsum, 0.2-0.5 part of cellulose ether, 0.1-1.5 parts of silicon carbide fibrous crystal, 0.05-0.6 part of a foaming agent, 0.2-1 part of graphite and 0.04-0.06 part of a retarder, wherein the total amount of the components is 98-102 parts. The solid solution is obtained by mixing and firing iron tailings, the barium slag and boron oxide of which the mass ratio is (1-1.4):(6-6.6):(0.012-0.02). The electromagnetic-wave-radiation-resistant dry-mixed mortar making use of the barium slag is good in radiation resistance, excellent in mechanical property and capable of being widely applied to industrial and medical radiation-resistant engineering; besides, the industrial waste slag is used so that benefits can be brought to society.

The present invention relates to a fail safe method and apparatus for automatically securing an area during a medical radiation procedure. Upon initiation of the procedure, an electrical signal is sent from the medical device to the locking device, which automatically secures all passages to and from the radiation room. Upon completion of the procedure, a second signal automatically is sent from the medical device thereby opening the locking device and allowing free passage to and from the room.

A linear accelerator head for use in a medical radiation therapy system can include a housing, an electron generator configured to emit electrons along a beam path, and a microwave generation assembly. The linear accelerator head may include a waveguide that is configured to contain a standing or travelling microwave. The waveguide can include a plurality of cells that are disposed adjacent one another, wherein each of the plurality of cells may define an aperture configured to receive electrons therethrough. The linear accelerator head can further include a converter and a primary collimator.

The invention relates to a preparation method of a terbium-doped lithium magnesium phosphate photoexcitation luminous dosimeter. The method comprises the following steps: grinding, presintering, and carrying out green compacting and high-temperature sintering on raw materials, namely LiOH.H2O, Mg(NO3)2.6H2O, NH4H2PO4, H3BO3 and Tb4O7. Compared with a powder material, the terbium-doped lithium magnesium phosphate photoexcitation luminous dosimeter obtained by the method disclosed by the invention is easier to carry in the aspect of monitoring a personal radiation dose; in the aspect of building an online measuring system for an optical fiber radiation dose, a flaky radiation dose sensitive material is integrated with optical fibers more easily to obtain a dose prober compared with the powder body; in the aspect of a preparation method of the dosimeter, intermediate powder is obtained by a low-temperature preinsertering method, so that material pollution and equipment damage caused in the process of sintering at high temperature and grinding in sequence to obtain the powder material are avoided; in addition, a large amount of time and resources are saved, and the quality of the material is improved; in the aspect of the performance of the dosimeter, the prepared dosimeter can be applied to measurement of personal doses and real-time online measurement of environmental and medical radiation doses.

The invention discloses a ray prevention device which comprises a supporting frame, a main prevention curtain, an auxiliary prevention curtain and a driving device. A main radiation window is formed in the middle of the main prevention curtain. Multiple different-sized auxiliary radiation windows smaller than the main radiation window are formed in the auxiliary prevention curtain in the length direction at intervals. The driving device is used for driving the auxiliary prevention curtain to move, and a ray radiation range is controlled by correspondingly communicating any one auxiliary radiation window formed in the auxiliary prevention curtain with the main radiation window. The ray prevention device is put between a medical radiation device and a patient, targeted blocking can be conducted on different-sized radiation parts of the patient during radiation by adjusting the corresponding communication between the different auxiliary radiation window formed in the auxiliary prevention curtain and the main radiation window, the ray radiation to non-radiated zones is fully avoided, a prevention effect is improved, the trouble that the patient needs to wear a prevention appliance during ray radiation is avoided, and meanwhile cross infection caused by the prevention appliance worn by the patient is avoided.

The invention discloses a medical radiation protection product detection system. The system comprises an X-ray generation device, an X-ray detection device, a detection module, a management module anda mobile terminal, wherein the detection module comprises an image processing module and a qualification judging module; the management module comprises a medical radiation protection product database and a two-dimensional code generation module; medical radiation protection products are in one-to-one correspondence with two-dimensional codes; X-ray images of the medical radiation protection products are transmitted to the image processing module; after the X-ray images undergo image processing; automatic judgement is carried out to determine whether the medical radiation protection productshave cracks or not; and through the mobile terminal, the detection results can be queried in real time. According to the system, a computer vision technology and a parameter extraction algorithm are utilized to realize the intelligent detection of the radiation protection products, so as to facilitate the tracing of the detection results of the medical radiation protection products; and compared with the traditional visual inspection-based interpretation and detection method, the detection system provided by the invention is more reliable in detection result.

The invention discloses an X-ray auxiliary photographing method based on an infrared camera, a system and a device. The method comprises the following steps of obtaining a first infrared mark point and a second infrared mark point arranged on an X-ray auxiliary photographing device and a third infrared mark point arranged on a human body; calculating angle data constituted between the human body and the base of the X-ray auxiliary photographing device according to the first infrared mark point, the second infrared mark point and the third infrared mark point; according to the calculated angledata, automatically adjusting the angle formed between the human body and the base of the X-ray auxiliary photographing device by the X-ray auxiliary photographing device. The system includes a coordinate obtaining module, an angle calculating module and an angle adjusting module. The apparatus includes a memory and a processor. The invention does not require manual adjustment by technical personnel, improves work efficiency and reduces reshooting rate, further reduces radiation doses received by patients and family members, and can be widely applied in the medical radiation technical field.

The invention relates to a medical radiotherapeutic device, which mainly comprises a radioactive source body, a switch body and an end collimation body. A radioactive source hole and a pre-collimation hole are arranged on the radioactive source body, and a radioactive source is arranged in the radioactive source hole; the switch body is to arrange a plurality of cylinders in the radioactive source body, a rotation driving device is respectively arranged at the upper part of each cylinder, and a middle collimation hole is arranged on the cylinder; an end collimation body device is arranged in the radioactive source body, and an end collimation hole is arranged on the end collimation body. The invention is of the medical radiotherapeutic device structure that the structure is simple and portable, the cost is low, the switch can be controlled respectively, and the quantity of the radiation can be smartly adjusted.

The invention relates to a medical radiotherapeutic device structure, which mainly comprises a radioactive source body, a switch body and an end collimation body. A radioactive source hole and a pre-collimation hole are arranged on the radioactive source body, and a radioactive source is arranged in the radioactive source hole; the switch body is to arrange a plurality of cylinders in the radioactive source body, a linear driving device is arranged at the upper part of each cylinder, and a middle collimation hole is arranged on the cylinder; an end collimation body device is arranged in the radioactive source body, and an end collimation hole is arranged on the end collimation body. The invention is of the medical radiotherapeutic device structure that the structure is simple and portable, the switch can be controlled respectively, and the quantity of the radiation can be smartly adjusted.

The invention discloses an integrated assembly type medical radiation protection room structure construction method. The integrated assembly type medical radiation protection room structure construction method comprises the steps that surveying and setting out are carried out, a position marking line of the object to be assembled is popped up; in-depth design and factory machining are carried out,a clean room is split into a plurality of functional modules, and an arrangement drawing is made; the functional modules comprise radiation protection modules, heating and ventilation modules, electronic modules, decoration modules, intelligent modules, medical gas modules and cabinet modules; the installation positions of each functional module are matched with the position marking line; and theradiation protection modules, the heating and ventilation modules, the electronic modules, the decoration modules, the intelligent modules, the medical gas modules and the cabinet modules are arranged in sequence, after the modules are installed, the gap is filled with glue. The invention further relates to a radiation protection room built by the construction method. The rapid construction of anoperating room environment is achieved through the organic combination of the functional modules and wall modules, the installation sequence is orderly, and the on-site installation environment is environmentally friendly and comfortable. No welding operation is required, the installation steps are simple, and the construction is environmentally friendly.

The invention discloses X-ray protective clothing for medical radiation shielding. The X-ray protective clothing is prepared by processes of dosing a base material and a shielding material according to a certain ratio, mixing the materials, crushing for granulation and extruding. The base material is a thermoplastic elastomer (TPE) and accounts for 15%-95% of the total weight. The shielding material contains a boron compound, lead, tungsten and their compounds, wherein the boron compound accounts for 15%-95% of the total weight; and lead, tungsten and their compounds account for 0-85% of the total weight. The radiation shielding material has good flexibility and good repetitive bending performance and can be directly applied to neutron and/or gamma radiation shielding occasion. The protective clothing prepared from the radiation fielding material has a good shielding effect, has a simple structure, is convenient to wear, has good operating adaptability, and can be used in radiation protection of medical close-range operators to prevent harm of neutron and/or gamma radiation to human body. The radiation shielding material also can be used for cladding shielding in oil exploration, nuclear chemical engineering, special industry, normal temperature pipeline and heated pipeline as well as radiation shielding on other occasions.

The invention relates to the technical field of medical instruments, and provides a medical radiation box. The medical radiation box comprises a box body, a pulling up structure, a first pushing structure, a second pushing structure and a spring, wherein the box body comprises a main box structure and three cavity bodies; the cavity bodies are a radiation cavity, a storage cavity and a pushing cavity which are communicated with one another and lead to the outside of the box body; the first pushing structure and the second pushing structure are connected with each other through an interlocking structure; the pulling up structure comprises a pulling up rod and a pushing block; the spring is arranged between the pushing block and a second packaging unit. The invention further provides a medical radiotherapy machine which can be equipped with radiation structures of different amounts and different radioactive sources according to different nidi. The medical radiation box and the medical radiotherapy machine have the advantages that the production complexity, the maintenance difficulty and the application cost are low; the production cost and the running cost of an accurate radiotherapy system can be reduced greatly; the application prospect in underdeveloped and semi-developed countries and areas is wide; the potential economic benefit is higher.

The invention discloses a medical radiation-proof composite wooden door, which is composed of a door frame (1), door boards (2) fixed to the two sides of the door frame (1) and a packing layer (3) arranged in the middle, wherein a radiation-proof coating (16) is arranged on each door board (2), a radiation leakage prevention device (4) is arranged at the bottom of the door frame (1), and an electromagnetic radiation alarming device (5) is arranged on the door board (2). The medical radiation-proof composite wooden door has the advantages of being capable of improving the radiation-proof performance, simple in manufacturing technology, low in cost, easy to move and capable of enabling the radiation leakage problem to be found in time and reminding personnel to be evacuated.

The invention provides a medical radiation device which comprises a machine body, a radiation component and a connection component. Concave parts are arranged on three sides of the machine body. The radiation component matches the concave parts. The radiation component and the machine body are in rotation connection through the connection component. When the radiation component is stored, the radiation component is accommodated in a concave part. When the radiation component is unfolded, by adjusting the angle of the connection component relative to the machine body and the rotation of the radiation component relative to the connection component, the radiation component is unfolded. The medical radiation device has the advantages of compact structure, convenient storing and flexible use. A space occupied by the medical radiation device which does not work is reduced. The space utilization rate is improved. The experience of a curer is enhanced.

The invention provides a method for preparing a medical radiation-resistant non-woven fabric by electrostatic spraying. The method comprises the following steps: step 10, preparing raw materials; step20, performing pressure extruding; step 30, spraying filaments to form a net; step 40, pressing to form cloth, wherein a raw material component A polypropylene, and a raw material component B radiation-resistant polymer, such as polyurethane rubber and natural rubber, enter into a pressure extruding device through two channels; high-pressure air jet holes are arranged around spraying holes of spraying heads; the spraying heads are connected with a negative electrode of high-voltage direct current; and a net collecting device is connected with a positive electrode of the high-voltage direct current. According to the method for preparing the medical radiation-resistant non-woven fabric by electrostatic spraying, two groups of the raw materials are mixed in a process of spraying to form fibre filaments by utilizing a two-layer conical pressure extruding device; the process of spreading a fabric layer is omitted; the processing process of the medical radiation-resistant non-woven fabric is shortened; and moreover, the raw materials, such as the polypropylene, the polyurethane rubber and the natural rubber, which are rich in sources, low in cost and are relatively easier to degrade areadopted, so that the overall production and use stage is relatively more environmentally friendly.