Shimadzu Corporation

Tomoharu Okuno

Hideki Fujii

Masahiro Kawano

Ken Shirota

Shinji Hamasaki

Hiroshi Okumura

Daisuke Notohara

Junpei Sakaguchi

Takashi Marume

Shinsuke Kanazawa

Noboru Yamashita

Mikihiko Kato

Goro Hirata

Kana Oya

After an operator presses a practice mode execution start switch displayed on a touch panel liquid crystal display unit in an operation unit () or a touch panel liquid crystal display unit in an operation unit () to shift an imaging mode to a practice mode, when the operation unit () or the operation unit () of the imaging unit is operated, the signal from the X-ray imaging control unit () is transmitted to the voice guidance output control unit () in a voice guidance unit () via a signal output unit for a voice guidance unit (). The voice guidance output control unit () in the voice guidance unit () transmits a signal for outputting voice guidance to a speaker (). As a result, the same voice as a voice when performing the serial imaging is output from the speaker (). Thus, a subject can execute the practice of a breathing method or the like.

Radiographic imaging device

When a first-stage push-button switch of an operation unit () is pressed, an X-ray imaging control unit () transmits a signal A for starting voice guidance to a signal output unit () for a voice guidance unit as well as a signal B for starting preparation of X-ray imaging to an X-ray tube control unit (). At this time, when the pushing operation of the push-button switch is performed, the X-ray imaging control unit () immediately transmits the signal A for starting the voice guidance to the signal output unit () for the voice guidance unit but transmits the signal B for starting the X-ray imaging after a time thas elapsed. The time tis a time calculated by subtracting a time trequired for preparing an X-ray tube () for performing X-ray imaging from a time trequired for the voice guidance.

X-ray imaging device

A patient authentication system is provided with: an authentication unit configured to authenticate a subject based on a reference database, a patient authentication bio-information acquired by a patient bio-information acquisition unit, and patient identification information acquired by a patient identification information acquisition unit, the reference database storing patient reference bio-information acquired in advance as bio-information to be referred to when authenticating the patient and patient reference identification information to be referred to when authenticating the patient in association with each other; and a device control unit configured to perform control of a medical device based on an authentication result which is a result of authentication by the authentication unit.

Patient authentication system and patient authentication method

An acceleration sensor () is attached to a collimator () and detects an acceleration of the collimator (), and a speed calculation unit that calculates the speed of the collimatoron a basis of the acceleration detected by the acceleration sensor (). When the speed of the collimator () exceeds a setting speed that is set in advance, a lifting or lowering of an arm () is stopped by attaching a permanent electromagnet () to a stopper plate (). In addition, a warning message as a warning indication is displayed on a display unit, and a warning sound as a warning indication is generated from a speaker. Accordingly, damage to an apparatus is prevented.

Apparatus photographing apparatus

A workstationlinks an X-ray image conforming to the Dicom standard and exposure dose data prepared by an exposure measurement systemwith use of information on the imaging date and time of the X-ray image conforming to the Dicom standard and information on the imaging date and time of the exposure dose data prepared by the exposure measurement system. This enables the workstationto calculate an exposure dose corresponding to each X-ray image. Also, the workstationcalculates an exposure dose corresponding to each X-ray examination on the basis of data on the start time and end time of the examination received from a console part. An examination time and an imaging technique at each examination, data including information on a subject, and information indicating an exposure dose corresponding to the examination are configured as one piece of data and displayed on a display partof the workstation

Exposure-dose display device

This holding mechanism () for an X-ray imaging apparatus includes a switching means () that switches between a state of permitting movement of a moving body () including an X-ray tube () or an X-ray detector () and a state of prohibiting the movement, a force direction detection means () that detects a direction of a force applied to a moving mechanism (), and a permission direction determination means () that determines a direction in which the movement is permitted by the switching means among a plurality of directions based on a detected direction of the force.

Holding mechanism for X-ray imaging apparatus and X-ray imaging apparatus

A radiation imaging apparatus performs pre-shot imaging while considering the imaging condition on the tomosynthesis imaging which can be performed right thereafter without repeating a positioning of the radiation irradiation unit on the tomosynthesis imaging. The protocol for the per-shot imaging is read out. Reading out the protocol is executed by that the operator of operation unit of the console and the consolereads out the protocol for the pre-shot imaging from the radiology department information system along with the patient information. Therefore, the imaging condition of the protocol for the continuously executed tomosynthesis imaging is read out while linking the protocol of the pre-shot imaging.

Radiation imaging apparatus

An X-ray imaging apparatus operates by selecting an appropriate exposure sensitivity corresponding to the X-ray detector to be used. In the apparatus, an exposure sensitivity corresponding to the flat panel detectors used for an X-ray imaging is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit of the console, and the selected exposure sensitivity is displayed on the display unit of the high-voltage unit. An exposure control is executed based on the exposure sensitivity corresponding to the flat panel detectors used for the X-ray imaging, which is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit. The exposure control unit of the high-voltage unit suspends the X-ray irradiation from the X-ray tube when an integrated value of the X-ray detected by the X-ray dose sensor reaches to the setting-value set relative to the selected exposure sensitivity.

X-ray imaging apparatus

Provided is an X-ray imaging apparatus capable of properly performing an automatic exposure control and an appropriately performing X-ray imaging control with a simple configuration. In cases where there exists a plurality of AEC photo pickup fields for automatic exposure, based on the positional information on an X-ray irradiation area and the AEC photo pickup field(s), the presence or absence of AEC photo pickup field(s) where all areas of the sensitive area are not included in the X-ray irradiation area is detected. In cases where there exist one or more AEC photo pickup fields not included in the X-ray irradiation area, the corresponding AEC photo pickup field is set to be unused. As a result, it is possible to appropriately perform an automatic exposure control and/or perform an X-ray imaging control appropriately with a simple structure.

An X-ray imaging apparatus is configured so that an height-position composition elementsends a directive to an angle driving elementin an imaging element, and the height-position compensation elementcorrects the height-position of the X-ray tubeby driving of the up-and-down driving elementin conjunction with the imaging region that the imaging region data recognition elementof the console element, the angle of the X-ray tubeis corrected so that the X-ray irradiation angle of the X-ray from the X-ray tubefaces downward; and when the height-position compensation elementcorrects the height-position of the X-ray tubedownward, the angle of the X-ray tubeis corrected so that the X-ray irradiation angle of the X-ray from the X-ray tubefaces upward.

A radiography apparatus is provided in which delays in imaging do not occur due to the influence of preliminary preparation of a radiation detector. The FPDreceives a signal from an X-ray tube control unitand then completes preliminary preparation for the detection of radiation during accelerated movement of an X-ray tubeor the FPD. That is, the accelerated movement of the X-ray tubeor the FPDand the preliminary preparation for the detection of radiation are carried out simultaneously. This enables imaging to be started immediately after the start of constant speed movement of the X-ray tubeor the FPDwithout having to wait for constant speed movement thereof to start preliminary preparation of the FPDas in conventional apparatuses. As a result, delays in imaging do not affect the radiation image.

Radiographic apparatus

In a radiation tomography imaging device, the imaging range calculation elementcalculates a possible imaging range of the FPDbased on the imaging distance G, the irradiation swing angle &#x3b8; and the movable range SP of the X-ray tube. The operator can preliminarily calculate the possible imaging range of the radiation detection means prior to the X-ray tomography imaging because the imaging distance, the irradiation swing angle, and the movable range SP are all predetermined parameters. The possible imaging range FP of the FPDis the positional range of the FPDin which the X-ray tubecan acquire the X-ray tomography image without moving the X-ray tubeto the outside of movable range. Therefore, the radiation tomography imaging can start the X-ray tomography by assuredly moving the FPDwithin the possible imaging range by referring to the preliminarily calculated possible imaging range of the FPD. As results, an incident in which the X-ray tubemoves out of the movable range SP and interferes the floor surface W and so forth can be avoided, so that the X-ray tomography imaging can be performed adequately.

Radiation tomography device

An improved configuration of a mobile-type radiographic image pickup device reliably stops on a flat path without play. More specifically, the prevent invention stops reliably on an inclined path. Where a carriage accelerates regardless of that fact that a deceleration control unit has begun to restrict the movement of the carriage, a brake control unit causes a brake device to operate. According to the present invention, if the carriage accelerates regardless of the fact that a deceleration control unit has begun to restrict the movement of the carriage, the brake device is promptly operated, and prevents concern regardless of the application of an instruction to stop the carriage which is travelling on an incline, and prevents the carriage from running for a long period to time.

Mobile-type radiographic image pick up device

In an X-ray apparatus in which an FPD-moves independently of an X-ray tube, an X-ray irradiation area discriminator discriminates, for separate X-raying actions, X-ray irradiation area images from among X-ray images outputted from the FPD-. An X-ray tube position sensor acquires position information P on the X-ray tube for the separate X-raying actions. A long image creator creates a long image by shifting the X-ray irradiation area images based on the position information, and splicing the X-ray irradiation area images together. Therefore, even when a relative position between the X-ray tube and FPD-is variable instead of being constant, the X-ray irradiation area images can be obtained reliably, and these can be spliced together with high accuracy. There is no need to uniform starting timing and moving speed of the X-ray tube and FPD-, which simplifies control.

X-ray apparatus

When an X-ray detector is removed from a storage part, a sensor senses this, and transmits to an up and down control part a signal indicating that the X-ray detector has been taken out of the storage part. Upon receipt of the signal, the up and down control part releases braking force by electro permanent magnets. In doing so, sticking force of the electro permanent magnet on a fixing part, and sticking force of the electro permanent magnet on a stopper plate are released. The weight of a counter weight is larger than the total value of the weights of the arm, X-ray tube, collimator, and the like, and therefore in a state where the arm is released from being fixed by the electro permanent magnets, the arm starts to move up together with the X-ray tube and the collimator.

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Kyoto, Japan

Tomoharu Okuno