166 results about "Portable X-ray" patented technology

A portable X-ray unit, of a relatively light-weight, occoping a volume of less then one-half a cubic foot containing an x-ray head assembly, a unique Marx generator, a plurality of spark-gap switches and control electronics is disclosed. The Marx generator allows for the development of a relatively high voltage in excess of 100 kV, yet allows for the discharge thereof within the nanosecond range. The Marx generator is enclosed by an acrylic insulator that cooperates with an aluminum enclosure, which functions as a return current path for the capacitors in the Marx generator and also as a shield against the escape of electromagnetic radiation from the pulsed x-ray unit. The Marx generator and spark-gap switches are confined within the pressurized chamber that may contain nitrogen gas to reduce the separation of the gap in the spark-gap switches.

Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced and the portability of the devices enhanced. The x-ray devices also have an x-ray detecting means that is not structurally attached to the device and therefore is free standing. Consequently, the x-ray devices can also be used as a digital x-ray camera. The portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare, or teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used as a digital x-ray camera in multiple offices instead of requiring a separate device in every office.

A portable tomosynthesis imaging system is disclosed that includes a portable X-ray source assembly and a portable detector assembly. The source assembly may be coupled to a portable power supply and controller such that multiple projection X-ray images may be obtained at a site that is not accessible by conventional tomosynthesis imaging systems. Image data may be transmitted from the detector by wired or wireless communication. Tomosynthesis image reconstruction may be performed locally at the portable system or remotely by the transmission of raw or filtered image data from the portable system. The portable system is particularly well-suited to field deployment, such as at accident scenes, scenes of natural or other disasters, or in confined clinical settings.

Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced, and the portability of the devices enhanced. Thus, the portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such nursing homes, home healthcare, teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used in multiple offices instead of single using an x-ray device in each office.

An “Angio Capable Portable X-Ray Fluoroscopy Unit with Sliding C-Arm and Variable Pivot Point” is disclosed. It is a new Portable C-Arm x-ray system for fluoroscopy (e.g., angio fluoroscopy) that permits head-to-foot, or cranio-caudal, angulation without appreciable degradation or rotation of the recorded image in the segment of possible views most desired to be used for cardiac angiography, generally between a vertical beam and 60 degrees to the patient's left side from vertical. Applicant's preferred embodiment comprises an portable x-ray device of the type having a C-arm which “slides” through a fixed C-slider housing or sleeve mounted onto a portable base, wherein: the C-slider housing is mounted onto the portable base through a rotatable tilt bearing, and the rotation axis of the bearing and fixed sleeve can be repositioned, within an arcuate slot in the base, from approximately horizontal, when the x-ray beam is vertical, to between approximately 60 degrees and 40 degrees below horizontal in a vertical plane.

A control circuit for a portable x-ray medical imaging system detector. The control circuit operates to reduce power consumption of the portable x-ray detector. The detector control circuit includes a multi-function switch coupled to the portable detector, and a detector control module installed in the portable detector, the detector control module receiving an input from the multi-function switch and based on the received input reconfiguring the portable detector from a first operational mode to a different second operational mode. A portable detector including the detector control circuit and a method of operating the portable detector are also provided.

An x-ray detector panel support is disclosed that is formed with radiation absorbing material to reduce the reflection of x-rays off anything behind the scintillator, which may include the geometry of the panel support, the electronics, and the back cover of the x-ray detector. The absorbing material may take the form of a discrete layer secured to or otherwise disposed within the panel support. The radiation absorbing material may also be mixed with the base materials used to fabricate the panel support. As such, when the panel support is formed, it includes radiation absorbing components. The radiation absorbing material may include lead, barium sulfate, tungsten, as well as other materials. The panel support is constructed to inhibit the detection of backscattered x-rays without significantly increasing the size or weigh of the x-ray detector. The panel support is applicable with stationary or fixed as well as portable x-ray detectors.

A portable X-ray imaging apparatus includes an electronic cassette for imaging of an X-ray image and transmitting the X-ray image wirelessly. An image receiving unit communicates with the electronic cassette and receives the X-ray image wirelessly. A passive monitoring device receives ambient electromagnetic waves to measure communication environment by passive monitoring. An active monitoring device performs data communication between the electronic cassette and the image receiving unit to measure the communication environment by active monitoring. Furthermore, an evaluation device detects a cause of a communication failure by considering a result of the passive monitoring and a result of the active monitoring. The evaluation device detects that the cause of the communication failure is a blocking object blocking radio waves or a relative position between the electronic cassette and the image receiving unit according to the results of the passive and active monitoring.

An instrument and method for measuring the elemental composition of a test material. The instrument has a source of penetrating radiation for irradiating an irradiated region of the test material, a detector for detecting fluorescence emission by the test material and for generating a detector signal, and a controller for converting the detector signal into a spectrum characterizing the composition of the test material. A platen of attenuating material extends outward from adjacent to, and surrounding, the irradiated surface of the test material. In certain embodiments, the thickness of the attenuating platen is tapered with increasing radial distance from the central irradiated region of the test material.

An x-ray detector panel support is disclosed that is formed with radiation absorbing material to reduce the reflection of x-rays off anything behind the scintillator, which may include the geometry of the panel support, the electronics, and the back cover of the x-ray detector. The absorbing material may take the form of a discrete layer secured to or otherwise disposed within the panel support. The radiation absorbing material may also be mixed with the base materials used to fabricate the panel support. As such, when the panel support is formed, it includes radiation absorbing components. The radiation absorbing material may include lead, barium sulfate, tungsten, as well as other materials. The panel support is constructed to inhibit the detection of backscattered x-rays without significantly increasing the size or weigh of the x-ray detector. The panel support is applicable with stationary or fixed as well as portable x-ray detectors.

A portable X-ray imaging apparatus includes an electronic cassette for imaging of an X-ray image and transmitting the X-ray image wirelessly. An image receiving unit communicates with the electronic cassette and receives the X-ray image wirelessly. A passive monitoring device receives ambient electromagnetic waves to measure communication environment by passive monitoring. An active monitoring device performs data communication between the electronic cassette and the image receiving unit to measure the communication environment by active monitoring. Furthermore, an evaluation device detects a cause of a communication failure by considering a result of the passive monitoring and a result of the active monitoring. The evaluation device detects that the cause of the communication failure is a blocking object blocking radio waves or a relative position between the electronic cassette and the image receiving unit according to the results of the passive and active monitoring.

Systems, methods and apparatus are provided through which a portable imaging device is operable to communicate to other devices through both a wired communication path and a wireless communication path.

It is described a portable X-ray system (200), which has sensing means for detecting whether an anti scatter grid (230) is attached to a portable detector (240) or not. The system is able to automatically change the default exposure settings (265a, 265b, 265c, 265d), when a grid (230) is removed or attached to the portable detector (240). Thus, the risk of an under- or an over-exposure of the image will be reduced.

A mobile X-ray imaging apparatus and method of controlling the same, the mobile X-ray imaging apparatus including a movable main body, an X-ray source installed on the main body via an arm, a tilt angle and rotation angle of the arm being adjustable, a portable X-ray detector configured to detect X-rays emitted from the X-ray source, a position information acquirer configured to acquire position information indicating a position of the X-ray source relative to the portable X-ray detector, and a position controller configured to control the X-ray source to move to a position corresponding to the portable X-ray detector based on the acquired position information.

A radiation shield and method for reducing ambient radiation levels at a distance from a surface irradiated by penetrating radiation emanating from an instrument. The shield attaches to an end of the instrument abutting an irradiated surface and has a platen of attenuating material disposed within a plane substantially transverse to the propagation direction of penetrating radiation and substantially adjacent to the irradiated surface.

The invention relates to a method for quickly detecting heavy metal contents and spacial distribution in soil, which comprises the following steps that: A) a portable X-ray fluorescence spectrometer detects the heavy metal contents in soil of a point to be detected, and a global positioning system connected with the portable X-ray fluorescence spectrometer acquires geographical coordinates of thepoint and the soil water content of the point at the same time; B) the geographical coordinates of the point to be detected are input to a calibration database, and a computer automatically acquires corresponding soil type and calibration coefficient of the soil type; C) soil water content data acquired in step A are input to the calibration database, and a calibration coefficient which corresponds to the data is automatically acquired; D) the influence of the soil type and the soil water content on the heavy metal measured value acquired in step A is deducted by the oil type calibration coefficient acquired in step B and the soil water content calibration coefficient acquired in step C; and E) the calibrated heavy metal measured value acquired in step D is combined with a topography and a land utilization electronic map of an area to be detected to immediately generate a visual soil heavy metal content spacial distribution map.

The invention discloses a portable X-ray detector based on a highly sensitive line array detector, which comprises a portable X light source and a portable X-ray detection box that is internally provided with an X-ray highly sensitive line array detector; the X-ray highly sensitive line array detector driven by a mechanical scanning device comprises a scintillation crystal and a photodiode array; the scintillation crystal detects the X-ray signal sent out by the X light source and inputs the X-ray signal to the photodiode array which converts the received X-ray signal into a current signal, and then the current signal is converted into a digital signal by a multi-channel analog-digital conversion ADC array to be input to a data acquisition processor; and the data acquisition processor obtains the digital signals of multi-row pixels output by the multi-channel analog-digital conversion ADC array for forming an X-ray perspective image. The image has good contrast, high detection sensitivity and smaller volume.

A method of fabricating a portable x-ray detector includes coupling a gravity sensor to the portable x-ray detector and coupling a processor to the gravity sensor. The processor is programmed to receive an input from the gravity sensor, determine a physical orientation of the portable x-ray detector based on the received input, and generate an indication to reposition the portable x-ray detector. A portable detector and an imaging system including the portable detector are also provided.

A portable X-ray imaging apparatus has an electronic cassette and a console capable of receiving an imaging order. The console has a wireless communication section, a trigger signal obtaining section, a connection determining section, a switching section, and a delivery requesting section. The wireless communication section receives radio waves and connects itself to an access point (AP). The trigger signal obtaining section obtains a trigger signal while the mobile radiography unit stands still. At the time of obtaining the trigger signal, the connection determining section determines one of the APs as an appropriate AP based on field intensity. The switching section switches the connection to the appropriate AP. Then, the delivery requesting section transmits a delivery request for the imaging order.

A radiation shield and method for reducing ambient radiation levels at a distance from a surface irradiated by penetrating radiation emanating from an instrument substantially along a propagation axis. The shield attaches to an end of the instrument proximate to an irradiated surface and has a surface of attenuating material disposed with a component extending outward from the propagation axis of penetrating radiation and substantially adjacent to the irradiated surface.

An articulated x-ray table comprises a planar, rigid radiolucent top support and a base spaced therefrom to form a gap whereby radiographic plates can be inserted and withdrawn. The gap is maintained by the use of one or more trolleys that are moveable along the length of the table to be moved into proximity to the location where the plate is to be inserted. Generally, two of the trolleys are used along either side of the table for placement near the x-ray plate. The trolleys move in grooves or tracks on the edges of the base along the length of the table. Each trolley includes wheels that engage the grooves, and a separate roller that engages the top support. This permits the trolleys to be easily moved along the guide notwithstanding the weight of a patient on the table. The table can be used for animals and humans.

An “Angio Capable Portable X-Ray Fluoroscopy Unit with Sliding C-Arm and Variable Pivot Point” is disclosed. It is a new Portable C-Arm x-ray system for fluoroscopy (e.g., angio fluoroscopy) that permits head-to-foot, or cranio-caudal, angulation without appreciable degradation or rotation of the recorded image in the segment of possible views most desired to be used for cardiac angiography, generally between a vertical beam and 60 degrees to the patient's left side from vertical. Applicant's preferred embodiment comprises an portable x-ray device of the type having a C-arm which “slides” through a fixed C-slider housing or sleeve mounted onto a portable base, wherein: the C-slider housing is mounted onto the portable base through a rotatable tilt bearing, and the rotation axis of the bearing and fixed sleeve can be repositioned, within an arcuate slot in the base, from approximately horizontal, when the x-ray beam is vertical, to between approximately 60 degrees and 40 degrees below horizontal in a vertical plane.

A portable X-ray detector includes: a detection panel having an incident surface defined on a front surface thereof facing a generator and configured to generate an electrical signal for each position which is proportional to an incident amount of X-rays generated from the generator; a backing housing detachably fixed to a rear surface of the detection panel and having a sealed mounting space defined therein; and a communication module mounted in the mounting space and configured to wirelessly transmit the electrical signal generated from the detection panel.

A portable x-ray backscattering imaging system for creating a backscatter image representing an object is disclosed. The portable x-ray backscattering imaging system may include a drum, a radioactive source, a plurality of backscatter detectors, and a portable exterior shield. The drum may be rotatable about an axis of rotation at a rotational speed. The radioactive source may be connected to the drum and configured to generate x-rays. The plurality of backscatter detectors may be configured to detect backscattering radiation created as the x-rays generated by the radioactive source scatter back from the object. The portable exterior shield may enclose the drum. The exterior shield may be constructed of a material that substantially blocks the x-rays and defines a window that allows for the x-rays to pass through.

A portable tomosynthesis imaging system is disclosed that includes a portable X-ray source assembly and a portable detector assembly. The source assembly may be coupled to a portable power supply and controller such that multiple projection X-ray images may be obtained at a site that is not accessible by conventional tomosynthesis imaging systems. Image data may be transmitted from the detector by wired or wireless communication. Tomosynthesis image reconstruction may be performed locally at the portable system or remotely by the transmission of raw or filtered image data from the portable system. The portable system is particularly well-suited to field deployment, such as at accident scenes, scenes of natural or other disasters, or in confined clinical settings.

A method of testing a portable x-ray device includes sensing an environmental stimulus experienced by the portable x-ray device, transmitting a signal related to the environmental stimulus to a processing unit, determining whether the signal meets an alert threshold, activating a detector of the portable x-ray device if the signal meets the alert threshold, producing a gray image through the activating step, comparing the gray image produced through the activating step with a control gray image corresponding to a properly functioning detector.

The invention discloses a method for judging the heavy metal detection type of a portable X-ray fluorescence spectrometry, wherein the method is mainly designed to judge the metal detection type when heavy metals in soil are detected by using PXRF. The method comprises the following steps: (1) respectively using the portable X-ray fluorescence spectrometry and a standard method for measuring the content of the heavy metals in the soil to obtain a rapid measurement value and a standard method measurement value; (2) calculating evaluation parameters according to the rapid measurement value and the standard method measurement value of the heavy metals obtained in step (1), if the calculated evaluation parameters are in a predetermined threshold range, determining that the heavy metals can be detected directly by the portable X-ray fluorescence spectrometry within a detection range; if the calculated evaluation parameters are not in the predetermined threshold range, determining that the heavy metals cannot be detected directly by the portable X-ray fluorescence spectrometry beyond the detection range.