22results about "Radiation generation arrangements" patented technology

A multisource interventional X-ray imaging system including a ring assembly is disclosed. The ring assembly may include a first arc including a plurality of X-ray sources, and a second arc including a plurality of detectors. The X-ray sources and the detectors may be arranged to view a patient. Further, the ring assembly may axially rotate or wobble by a maximum angular displacement that is equivalent to a distance between adjacent X-ray sources.

The invention relates to an X-ray device comprising an X-ray source configured for generating X-rays, further comprising an X-ray detector, and further comprising an X-ray reflection unit, wherein the X-ray reflection unit is configured to reflect X-rays generated by the X-ray source such that the reflected X-rays strike the X-ray detector. In particular, the X-ray detector is configured for detecting the X-rays. The invention further relates to a method for operating the X-ray device. The X-ray device according to the invention allows, on the one hand, the space available above a patient to be increased. Furthermore, by focusing using the X-ray reflection unit, the power of the X-ray source can be increased while maintaining the same spatial resolution, or, conversely, the spatial resolution can be improved while maintaining the same power of the X-ray source.

Various methods and systems are provided for an emitter assembly for a cathode of an X-ray tube. In one example, an emitter assembly comprises a first end of a substantially flat emitter supported by two rods extending from a two-rod insulator assembly, and a second end of the substantially flat emitter supported by a compliant, single rod insulator assembly.

Laser-based alignment support device (1) for assisting the alignment of an instrument (2) for puncturing an object (3), in particular for an X-ray imaging system (4), comprising: - a first line laser (5) for generating a first laser beam in a first laser plane (7), which is configured to generate a first laser line (14) on a first surface line (9) of the instrument (2) in a first section plane (11) of the instrument (2) when the first section plane (11) coincides with the first laser plane (7), and - a second line laser (6) for generating a second laser beam in a second laser plane (8) intersecting the first laser plane (7), characterized by: - ​​a point-like shielding element (16) of the second line laser (6) for generating a shadow line (17) in the second laser plane (8), wherein the second line laser (6) is configuredto map a shadow point (18) of the shadow line (17) onto a second surface line (10) of the instrument (2) in a second cutting plane (12) of the instrument (2) when the first cutting plane (11) and the second cutting plane (12) are aligned.

The present application relates to the technical field of medical equipment maintenance, and particularly relates to a CT device self-adaptive fault early warning method and device. Historical operation records of a target CT device and anode temperature cycle records of an X-ray tube are acquired; a scan task timing sequence is obtained, the scan task timing sequence comprising a plurality of scan tasks, each scan task having a scan task type identifier; according to the scan task timing sequence, anode temperature change data segments corresponding to each scan task are extracted and time sequence processing is performed, obtaining an anode temperature cycle characteristic sequence; the anode temperature cycle characteristic sequence is processed, obtaining an anode cumulative fatigue damage degree of the X-ray tube; a fatigue damage degree self-adaptive threshold value of the X-ray tube is acquired, and when the anode cumulative fatigue damage degree is greater than or equal to the fatigue damage degree threshold value, X-ray tube fault early warning information is generated and output to a maintenance management system. The present application can accurately quantify the anode cumulative fatigue damage degree, and timely issue a fault early warning based on the self-adaptive threshold value.

The application discloses a medical X-ray tube with stable structure and relates to the technical field of medical detection equipment. The X-ray tube comprises a transparent protective cover arranged at the top end and the bottom end of the X-ray tube, a ceramic base connected to the bottom end of the transparent protective cover, a cathode arranged in the transparent protective cover, a stator arranged on the two sides of the ceramic base, a rotor connected between the stators, a heat dissipation system sleeved outside the rotor and an anode arranged in the heat dissipation system. The X-ray tube has the advantages that the two ends of the hydraulic plate are tightly connected with the inner wall of the sealing shell, the cavity in the hydraulic plate is divided into two closed cavities by the hydraulic plate, the internal cavity generates pressure when the shaft rotates, the cooling liquid tends to flow in one direction, the cooling liquid in the heat dissipation ring can be circulated in the cooling box, the stator and the rotor work synchronously, the stator and the rotor do not work under the condition of high load, and the service life of the X-ray tube is prolonged.

A photon counting CT device and a material decomposition method capable of reducing the influence of variation in the amount of accumulation due to differences in the line quality of X-rays. A photon counting CT device characterized by comprising: a storage unit that, while changing the thickness of a first base material and the thickness of a second base material, acquires the energy spectrum of X-rays that have transmitted a calibration member composed of the first base material and the second base material as known materials to become a reference, and stores the X-ray amount as calibration data in advance; a correction table creation unit that, while changing the thickness of the first base material, the thickness of the second base material, and the X-ray amount, acquires the energy spectrum of X-rays that have transmitted the calibration member, and creates a correction table that indicates the relationship between the number of X-ray photons per energy bin and the X-ray amount; and an image generation unit that generates a tomographic image that has been decomposed by each material based on the calibration data and the correction table.

The application discloses a kind of intracardiac detection contrast appearance, it is related to contrast technology field.This kind of intracardiac detection contrast appearance, including detection machine body and detection bed body, the detection machine body is provided with C-type frame, the both ends of C-type frame are respectively provided with collimator and image intensifier, the detection bed body is between collimator and image intensifier, one end of C-type frame is fixed with fixed frame, the inside of fixed frame is slidably connected with lifting plate.This kind of intracardiac detection contrast appearance, after intracardiac detection contrast appearance is completed to patient detection, by flipping component to image intensifier is overturned and is blocked protection, reduce the probability that image intensifier occurs damage, and in the process of flipping, by transmission, make image intensifier shake in the process of flipping while blowing and cleaning floating dust accumulated on the mirror surface of image intensifier, guarantee the cleanliness of image intensifier mirror when using again, improve the detection effect of intracardiac detection contrast appearance.

The present invention relates to medical X-ray imaging. To provide X-ray imaging with the option of steeper viewing angles, a medical X-ray imaging device (10) is provided, comprising an X-ray source (12) and an X-ray detector (14). The X-ray source is configured to generate an X-ray beam (16). The X-ray detector is configured to receive radiation from the X-ray beam at a detector surface (18) after it has passed through an object of interest (20). The device is configured to provide an X-ray beam for imaging that covers an area (24) of the detector that is smaller than the detector surface (18) and whose surface center (28) is offset from a center (30) of the detector surface.

An assembly (128) is configured for use in an x-ray generating unit of a medical imaging device (100). The assembly (128) includes a core assembly (136), a core mount (132), and one or more straps (140) configured to couple the core assembly (136) to the core mount (132). The core assembly (136) includes a magnetic core (368), a plurality of insulated cables, a plurality of standoffs (584), and the core mount (132). Each of the standoffs (584) is configured to be coupled to an end (236) of each of the insulated cables. The core mount (132) is configured to receive the core assembly (136). The core mount (132) includes a longitudinal section (142) extending along a first plane (152), a lateral section (208) extending from the longitudinal section (142) along a second plane (220), and a plurality of receptacles extending from the lateral section (208). Each of the receptacles is substantially perpendicular to the second plane (220) and includes a receptacle hole (324) configured to receive one of the standoffs (584).

X-ray and fluoroscopic image capture and, in particular, to a versatile X-ray emitter operative to capture images of a target configured to track and position the X-ray emission relative to an image sensor that generates the X-ray image using the X-ray emission. The system is configured to prompt the user or operator of the X-ray system with various informational data to improve the outcome of the X-ray and decrease the frequency of X-ray emissions required to obtain a desirable X-ray image.

Multi-mode x-ray exposure initiation devices are disclosed. An example an apparatus includes: a housing including a front surface, a back surface opposite the front surface, a first side surface, and a second side surface opposite the first side surface, the front surface substantially parallel to the back surface, the first side surface opposite the second side surface; a first button to trigger an X-ray device to prepare for an exposure; a second button to trigger the X-ray device to implement the exposure; and a connector to enable electrical coupling of the first and second buttons to the X-ray device.

Methods and systems are provided for preventing hot landings of a motor (321) of an X-ray imaging system (300) in the event of a power loss. In an example, a method for an X-ray tube of an imaging system (300) includes, during a scan of a subject (204) with the imaging system (300), supplying energy from a main power supply (602) to the X-ray tube (316) in order to rotate a target (319) of the X-ray tube (316), selectively recovering energy from the X-ray tube (316) and storing the recovered energy in an energy storage circuit (342) of the imaging system (300), and detecting a loss of the main power supply (602), and in response, supplying energy from the energy storage circuit (342) to the X-ray tube (316) in order to rotate the target (319) at a threshold speed.

Deflection electrode arrangement for an X-ray source, wherein the deflection electrode arrangement comprises: a first electrode plate (1) comprising a first connecting section (11) and a plurality of first tooth sections (12), wherein the plurality of first tooth sections (12) are arranged on the first connecting section (1) and spaced apart from one another, and each first tooth section (12) extends from the first connecting section (11) such that the first electrode plate (1) is formed in a comb shape; and a second electrode plate (2) comprising a second connecting section (21) and a plurality of second tooth sections (22), wherein the plurality of second tooth sections (22) are arranged on the second connecting section (21) and spaced apart from each other, and each second tooth section (22) extends from the second connecting section (21) such that the second electrode plate (2) is shaped in a comb form, wherein the first electrode plate (1) and the second electrode plate (2) are arranged such that the first electrode plate (1) and the second electrode plate (2) do not contact each other, and wherein the plurality of first tooth sections (12) and the plurality of second tooth sections (22) are at least partially offset to form multiple electron beam passes (S1, S2, S3, ...), wherein each electron beam pass (S1, S2, S3, ...) is arranged between an adjacent first tooth section (12) and an adjacent second tooth section (22), the X-ray source includes: a plurality of cathode units (5) for generating electron beams from different positions; and an anode (6) for receiving the electron beams from different positions, wherein the first electrode plate (1) and the second electrode plate (2) of the deflection electrode arrangement are arranged between the plurality of cathode units (5) and the anode (6), wherein each cathode unit (5) is arranged such that it is aligned with an electron beam passage (S1, S2, S3, ...) of the deflection electrode arrangement, so that the electron beams generated by the plurality of cathode units (5) can each pass through the corresponding electron beam passages (S1, S2, S3, ...) and reach the anode (6), and wherein potentials can be applied to the first electrode plate (1) and the second electrode plate (2) so that the electron beams are deflected when passing through the respective electron beam passages (S1, S2, S3, ...), and wherein when a high voltage is applied to the anode (6) at exit positions of the respective electron beam passages (S1, S2, S3, ...) focusing electric fields are generated in order to focus the electron beams.

The invention concerns a device and a method, and an X-ray system comprising such a device, comprising a first contact element configured to engage with a first engagement element, a second contact element configured to engage with a second engagement element, a cam element which is movably provided, an actuator and a spring attached to the cam element, wherein the cam element is arranged between the actuator and the spring. The first contact element and the second contact element are configured for being movable by the cam element, wherein the first contact element and the second contact element are configured for being movable between a locking position and an unlocking position, wherein in the locking position the first contact element engages with the first engagement element and the second contact element engages with the second engagement element; wherein in the unlocking position the first contact element is spaced apart from the first engagement element and the second contact element is spaced apart from the second engagement element. The actuator is configured upon activation to rotate the cam element such that the cam element is configured to move the first and the second contact element from the locking position to the unlocking position.

A system and method for projection based spectral X-ray imaging, such as computed tomography (CT) imaging, the system and method comprising performing projection based material decomposition based on spectral X-ray data to generate a set of material basis sinograms, and performing a weighted combination of at least part of at least two material basis sinograms of the set of material basis sinograms into a reconstructed image based on material weighting in the projection domain.

An assembly is configured for use in an X-ray generation unit of a medical imaging device. The assembly includes a core assembly, a core mount, and one or more ties configured to couple the core assembly to the core mount. The core assembly includes a magnetic core, a plurality of insulated cables, a plurality of standoffs, and a core mount. Each of the standoffs is configured to couple to an end of each of the insulated cables. The core mount is configured to receive the core assembly. The core mount includes a longitudinal section extending along a first plane, a lateral section extending from the longitudinal section along a second plane, and a plurality of receptacles extending from the lateral section. Each of the receptacles is substantially perpendicular to the second plane and includes a receptacle aperture configured to receive one of the standoffs.

The present disclosure provides a portable X-ray generator holding device and mounting assembly comprising: a base formed to support the lower surface of a portable X-ray generator; a side wall formed to extend from the base so as to form a surface different from the surface formed by the base, and formed to face the side surface of the portable X-ray generator; and an induction channel formed by cutting a portion from a free end of the side wall to the base, and formed to, after a handle of the portable X-ray generator enters the induction channel from the upper side of the base, induce the portable X-ray generator to a position at which the portable X-ray generator is supported on the base by gravity.

This application provides a tube current modulation method, apparatus, and medium, applicable to the field of imaging equipment technology. The method uses a target image and the segmentation results of the target object within that image. Based on the target image and the segmentation results, it determines the scanning range and scanning center point of a scanning device. Based on the scanning range and center point, it obtains a tube current modulation curve, and then adjusts the scanning current of the scanning device based on this curve. This enables dynamic adjustment of scanning parameters during image guidance, improving the image quality obtained by the scanning device. Furthermore, the target image and the segmentation results of the target object used in this application accurately reflect the cross-sectional structure of the target object. Compared to using a two-dimensional positioning image, it can effectively distinguish the thickness differences of overlapping objects, thereby generating a more accurate tube current modulation curve.

To suppress variation in radiation exposure dose.SOLUTION: A radiation imaging device includes a processing unit provided in a pixel area in which multiple pixels for detecting radiation are arranged, and which processes output signals output from multiple detection areas, including detection pixels that output a signal corresponding to the radiation dose. The processing unit generates weighting information for the multiple detection areas by comparing the output signal with preset reference information, and generates determination information for controlling radiation irradiation by comparing dose information in which the output signal is weighted on the basis of the weighting information with a preset threshold.SELECTED DRAWING: Figure 4

A radiation imaging system includes an irradiation system including a generator configured to emit radiation and a controller configured to control irradiation with the radiation, a radiation imaging apparatus configured to detect the radiation and request the irradiation system to stop the irradiation with the radiation based on an irradiation dose of the radiation, and a calculation unit configured to calculate a delay time caused at a stop of irradiation with the radiation based on first time information specified by the radiation imaging apparatus with respect to the stop of the irradiation with the radiation and second time specified by the irradiation system with respect to the stop of the irradiation with the radiation.