JP6104714B2 - Stand self-propelled X-ray CT system - Google Patents

Description

  Embodiments described herein relate generally to a gantry self-propelled X-ray CT apparatus.

  In general, an X-ray CT apparatus (X-ray computed tomography apparatus) includes a gantry for detecting X-rays emitted to a subject (X-rays transmitted through the subject) and imaging the subject, An internal image (tomographic image) of the subject is reconstructed based on the detection result (projection data).

  Incidentally, in recent years, an X-ray CT apparatus capable of moving (sliding continuously) a gantry (hereinafter referred to as a gantry self-propelled X-ray CT apparatus) is known. In the gantry self-propelled X-ray CT apparatus, a traveling unit is attached to the lower part of the gantry, and the gantry can be moved by traveling on a traveling surface such as a rail.

  According to such a gantry self-propelled X-ray CT apparatus, it becomes possible to obtain a helical CT tomogram with a bed fixed, for example, confirmation of lesion site removal during surgery or confirmation of bleeding. Therefore, it is possible to improve the safety and accuracy of surgery.

  In the above-mentioned gantry self-propelled X-ray CT apparatus, since the gantry itself moves, various cables for supplying power to the gantry or transmitting data from the gantry to an external device (for example, a console). Must have mobility.

  In this case, in order to reduce interference with equipment and operators around the apparatus, the cable is raised from the gantry to the ceiling, and for example, by using a cable hanger, the mobility of the cable in the gantry self-propelled X-ray CT apparatus Is generally realized.

  However, the work of raising the cable to the ceiling (cable wiring work) requires a lot of time and workers, and it takes a lot of labor to install the self-propelled X-ray CT apparatus. .

  Therefore, the problem to be solved by the present invention is to provide a gantry self-propelled X-ray CT apparatus capable of easily performing cable wiring work.

  The gantry self-propelled X-ray CT apparatus according to the embodiment includes a gantry, a rail unit, and a cable guide member.

  The gantry irradiates a subject placed on a bed with X-rays, detects X-rays transmitted through the subject, and performs imaging.

  The rail unit includes a rail installed on the floor for moving the gantry and a wiring storage space provided in a lower portion of the rail.

  The cable guide member guides a wiring cable connected to the gantry in accordance with the movement of the gantry in the wiring storage space.

The figure which shows an example of a structure of the mount frame self-propelled X-ray CT apparatus which concerns on embodiment. The figure for demonstrating the wiring storage space provided in the lower part of a rail. The figure for demonstrating operation | movement of the cable guide member 50 when the mount frame 10 moves. The figure for demonstrating operation | movement of the cable guide member 50 when the mount frame 10 moves. The figure for demonstrating the connection of the wiring cable 40 in the mount frame self-propelled X-ray CT apparatus which concerns on this embodiment. The figure which shows an example of a structure of the stand self-propelled X-ray CT apparatus with which the electric power feeding brush 60 and the transmission / reception unit 70 were provided.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 shows an example of the configuration of a gantry self-propelled X-ray CT apparatus according to an embodiment. The gantry self-propelled X-ray CT apparatus according to the present embodiment is an X-ray CT apparatus capable of moving the gantry.

  The gantry self-propelled X-ray CT apparatus shown in FIG. 1 includes a gantry 10, a traveling unit 20, and a rail unit 30.

  The gantry 10 irradiates a subject placed on a bed (not shown) with X-rays, detects X-rays transmitted through the subject, and images the subject.

  Specifically, the gantry 10 has a cylindrical opening that accommodates an imaging region of a subject to be imaged. In addition, the gantry 10 includes therein an X-ray irradiation unit that irradiates X-rays to an imaging region of a subject accommodated in the opening, and a high voltage generation unit that supplies a high voltage to the X-ray irradiation unit. An X-ray detector that detects X-rays emitted from the X-ray irradiation unit, and a data acquisition unit (DAS: Data Acquisition System) that collects detection signals detected by the X-ray detector and generates projection data And.

  Further, the gantry 10 includes a rotating frame that supports the X-ray irradiation unit, the high voltage generation unit X-ray detector, the data collection unit, and the like, and a rotating mechanism that rotates the rotating frame around the central axis of the rotating frame. Yes.

  The X-ray irradiation unit described above has an X-ray tube. The X-ray irradiation unit (the X-ray tube included in the X-ray irradiation unit) generates X-rays by the high voltage supplied from the high-voltage generation unit, and rotates the generated X-rays by the rotation of the rotating frame while the subject in the opening. Irradiate.

  The X-ray detection unit includes an X-ray detection element, detects X-rays transmitted through the subject by X-ray irradiation from the X-ray irradiation unit, and generates an electrical signal.

  The data collection unit collects an analog electrical signal output from the X-ray detector for each view corresponding to the rotation angle of the rotating frame, and converts the analog electrical signal into a digital signal.

  The digital signal (projection data) converted by the data collection unit is transmitted to a console provided outside the gantry 10, for example. In the console, pre-processing such as logarithmic conversion and sensitivity correction is performed on the projection data transmitted from the gantry 10, and image data relating to the subject is generated (reconstructed) based on the data on which the pre-processing has been performed. Is done. The image data generated in this way is displayed on a display device (for example, a display) provided in the console.

  The traveling unit 20 is attached to the lower part of the gantry 10 in order to enable the gantry 10 to move.

  The rail unit 30 includes, for example, a plurality of rails and a drive unit. The plurality of rails are installed on the floor surface on which the gantry 10 and the traveling unit 20 are arranged. Further, the drive unit causes the traveling unit 20 to travel on a plurality of rails by, for example, a lead screw that is rotationally driven by a motor. Thereby, in the gantry self-propelled C-line CT apparatus, the gantry 10 can be moved.

  In addition, a wiring storage space is provided below the plurality of rails included in the rail unit 30.

  Here, the wiring storage space will be described with reference to FIG. 2 is a cross-sectional view taken along line AA of the gantry 10, the traveling unit 20, and the rail unit 30 of FIG.

  As shown in FIG. 2, a wiring storage space 32 is provided below the rail 31 of the rail unit 30. In the wiring storage space 32, a wiring cable 40 connected to the gantry 10 (and the traveling unit 20) is stored. The wiring cable 40 connected to the gantry 10 includes, for example, a power cable for supplying power to the gantry 10 and the like, and a transmission cable for transmitting various data to the above-described console.

  In the present embodiment, the wiring storage space 32 is provided with a cable mechanism for moving the wiring cable 40 in accordance with the movement of the gantry 10. Specifically, as shown in FIG. 2, the wiring cable 40 has a bendable cable guide member (for example, a cable bear (registered trademark)) 50 for guiding the wiring cable 40 connected to the gantry 10. It is attached.

  Next, the operation of the cable guide member 50 when the gantry 10 moves will be described with reference to FIGS. 3 and 4.

  When the above-described cable guide member 50 is attached to the wiring cable 40, when the gantry 10 (and the traveling unit 20) moves to the left in FIG. 2, for example, the wiring cable 40 is connected to the cable as shown in FIG. It moves according to the movement of the gantry 10 along the guide member 50.

  On the other hand, when the gantry 10 (and the traveling unit 20) moves to the right in FIG. 2, for example, the wiring cable 40 responds to the movement of the gantry 10 along the cable guide member 50 as shown in FIG. Move.

  As described above, in the present embodiment, the subject placed on the bed is irradiated with X-rays, and the base 10 for performing imaging by detecting the X-rays transmitted through the subject, and the base for moving the base A rail unit 30 including a rail 31 installed on the floor and a wiring storage space 32 provided below the rail 31, and the wiring storage space 32 is connected to the base 10 according to the movement of the base 10. Since the wiring cable 40 is connected to the gantry 10 via the lower part of the rail 31 as shown in FIG. 5 by the configuration including the cable guide member 50 that guides the wiring cable 40, for example, wiring from the gantry 10 to the ceiling portion. Compared with the case where the cable 40 is raised, the cable wiring work and the like can be easily performed. Moreover, in this embodiment, since it becomes possible to shorten the length of the wiring cable 40 compared with the case where the wiring cable 40 is raised from the mount 10 to the ceiling, the price of the mount self-propelled X-ray CT apparatus is reduced. It can also be reduced.

  Further, in the present embodiment, by using the cable guide member 50, it is possible to reduce, for example, damage to the wiring cable 40 due to rubbing.

  Further, in the present embodiment, since a cable duct or the like necessary for raising the wiring cable 40 from the gantry 10 to the ceiling is not necessary, the interference of the wiring cable 40 with respect to equipment and operators around the X-ray CT apparatus. Can be avoided. Further, the replacement work of the wiring cable 40 after installation can be easily performed as in the case of the standard X-ray CT apparatus.

  In the present embodiment, for example, as shown in FIG. 6, a power supply brush (unit) 60 is attached to the traveling unit 20, and a fixed power rail (not shown) that supplies power to the rail unit 30 is also provided. It can be set as the structure which provides. According to such a configuration, power is supplied to the gantry 10 by bringing the power supply brush 60 into contact with the power supply rail. As a result, it is possible to further shorten the wiring cable (power cable) 40 for supplying power to the gantry 10, facilitating cable wiring work, and further effectively using the wiring storage space 32. It becomes possible.

  Furthermore, in the present embodiment, as shown in FIG. 6, for example, a transmission / reception unit that wirelessly transmits and receives various data between the gantry 10 (or the traveling unit 20) and the rail unit 30 (for example, a transmission unit that performs non-contact data transmission). ) 70 is also possible. In FIG. 6, the transmission / reception unit provided in the rail unit 30 is omitted. With such a configuration, it is possible to further shorten the transmission cable for transmitting various data between the gantry 10 and other devices (for example, a console), further facilitating cable wiring work, The wiring storage space 32 can be used effectively.

  The number of rails included in the rail unit 30 may be appropriately increased or decreased within a range that does not hinder the movement of the gantry 10 according to the number of wiring cables stored in the wiring storage space 32 or the like. Moreover, the wiring storage space 32 may be provided in the lower part of all the rails contained in the rail unit 30, or may be provided only in the lower part of some rails.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Stand, 20 ... Traveling unit, 30 ... Rail unit, 31 ... Rail, 32 ... Wiring storage space, 40 ... Wiring cable, 50 ... Cable guide member, 60 ... Power supply brush, 70 ... Transmission / reception unit

Claims (3)

A gantry that irradiates a subject placed on a bed with X-rays, detects X-rays transmitted through the subject, and performs imaging;
A rail unit including a rail installed on the floor for moving the gantry and a wiring storage space provided in a lower portion of the rail;
A gantry self-propelled X-ray CT apparatus comprising: a cable guide member for guiding a wiring cable connected to the gantry in accordance with movement of the gantry in the wiring storage space. A power supply brush for supplying power to the frame;
The rail unit further includes a power supply rail for supplying power,
The gantry self-propelled X-ray CT apparatus according to claim 1, wherein the power supply brush feeds power to the gantry by contacting the power supply rail. The rail unit further includes a transmission / reception unit for transmitting and receiving data wirelessly,
The pedestal self-propelled X-ray CT apparatus according to claim 1, wherein the transmission / reception unit wirelessly transmits and receives data to and from the gantry.

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