JP2007082681A - X-ray diagnostic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus allowing an operator to intuitively recognize a portion interfering with an interfering object and a distance between the interfering object and the portion at that time. <P>SOLUTION: This X-ray diagnostic apparatus is provided with a plurality of movable parts and an interference prevention mechanism preventing the movable part from interfering with the interfering object. The interference prevention mechanism is provided with a processing unit 200 calculating the distance between the movable part and the interfering object and, when the distance between the movable part and the interfering object becomes a preset value or less, emitting an approach signal indicating a possibility of interference, a distance signal indicating the distance between the movable part and the interfering object, and a specification signal specifying the movable part having a possibility of interference. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention has an interference prevention mechanism for preventing, for example, a movable part (for example, a C arm or an Ω arm) from interfering with an interference (for example, an operator, a subject, a radiographing room, another device, etc.). The present invention relates to an X-ray diagnostic apparatus.

  X-ray diagnosis has made progress mainly in the cardiovascular field with the development of catheter procedures.

  An X-ray diagnostic apparatus for cardiovascular diagnosis includes an X-ray generation unit, an X-ray detection unit, a holding device, a bed, a signal processing unit, a display unit, and the like. The X-ray generation unit and the X-ray detection unit are attached to both ends of the C arm and Ω arm, which are constituent elements of the holding device, and the C arm and Ω arm move, rotate, or rotate around the subject. Thus, the imaging region and the imaging angle of the subject are adjusted. In addition, the subject is placed on the top plate, which is a component of the bed, and the position of the subject at the time of imaging is adjusted by moving the top plate up and down, horizontally, or rotating. It has become so.

  As described above, the X-ray diagnostic apparatus for circulatory organ diagnosis has various parts of the apparatus, for example, an X-ray generator, an X-ray detector, a C arm, an Ω arm, a bed (especially a couch), etc. Therefore, these movable parts may interfere with a subject, an operator, another device (for example, an ultrasonic diagnostic device), a monitor, a wall of a photographing room, and the like.

Therefore, in the current X-ray diagnostic apparatus, so-called interference calculation and a non-contact sensor are used in order to prevent such interference (see, for example, Patent Document 1). In this X-ray diagnostic apparatus, a subject, an operator, another device, a monitor, a wall of a radiographing room, etc. in an interference area of a movable part such as an X-ray generation unit, an X-ray detection unit, a C arm, an Ω arm, and a bed An alarm is output from the speaker or a sign is displayed on the monitor when an interfering object enters. Also, when another movable part enters the interference area of a certain movable part, an alarm is output from the speaker or a sign is displayed on the monitor.
JP 2002-238888 A

  However, in the current X-ray diagnostic apparatus, the speaker that outputs an alarm is arranged only at one position of the apparatus. Therefore, even if an alarm is output from the speaker, the operator cannot intuitively grasp which part of the apparatus is likely to interfere with the interference. Moreover, since this speaker only outputs an alarm indicating whether or not there is an interference in the interference area, the operator can recognize that the interference is in the interference area, It is impossible to intuitively grasp the distance.

  Therefore, every time an alarm is sounded, the operator removes the line of sight from the subject or the monitor for diagnosis, temporarily suspends the operation or examination, and there is a possibility of interference and the distance between the device and the interfering object at that time. It was necessary to confirm.

  Even if a sign is displayed on the monitor, the operator removes the line of sight from the patient or diagnostic monitor, temporarily suspends surgery or examination, and confirms device operation and the distance between the device and the interfering object. There was a need.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an operator with an intuitive idea of a part that is likely to interfere with an interference object and a distance between the interference object and the part at that time. It is to provide an X-ray diagnostic apparatus that can be recognized easily.

  In order to solve the problems and achieve the object, the X-ray diagnostic apparatus of the present invention is configured as follows.

(1) In an X-ray diagnostic apparatus that includes a plurality of movable parts and has an interference prevention mechanism that prevents the movable part from interfering with an interference object, the interference prevention mechanism is a distance between the movable part and the interference object. A first signal indicating that there is a possibility of interference when the distance between the movable part and the interferer becomes equal to or less than a preset value; and the interference with the movable part Signal generating means for generating a second signal indicating the distance to the object and a third signal for identifying a movable part that may cause interference;

(2) In an X-ray diagnostic apparatus that includes an interference prevention mechanism that includes a plurality of movable parts and prevents the movable part from interfering with an interference object, the interference prevention mechanism is provided in the plurality of movable parts, A detecting means for detecting a distance between the movable part and the interference object, and a first indicating that there is a possibility of interference when the distance between the movable part and the interference object is equal to or less than a preset value. And a signal generating means for generating a second signal indicating the distance between the movable part and the interferer, and a third signal for identifying the movable part having the possibility of interference.

(3) In the X-ray diagnosis apparatus having a plurality of movable parts and having an interference prevention mechanism for preventing the movable part from interfering with a movable interference object and a non-movable interference object, the interference prevention mechanism includes: A calculating means for calculating a distance between the movable part and the non-movable interference object, and a distance between the movable part and the movable interference object provided in at least one of the plurality of movable parts. A first signal indicating that there is a possibility of interference when the distance between the movable unit and the interfering object is equal to or less than a preset value; and the interference with the movable unit Signal generating means for generating a second signal indicating the distance to the object and a third signal for identifying a movable part that may cause interference;

(4) In the X-ray diagnostic apparatus described in (1) to (3), the signal generation means is configured such that distances between the plurality of movable parts and the plurality of interfering objects corresponding to the respective movable parts are set in advance. When the value is equal to or lower than the predetermined value, a fourth signal indicating the priority order for preventing interference is output.

(5) In the X-ray diagnostic apparatus described in (1) to (3), based on the first to third signals, there is a possibility of interference, a movable part having a possibility of interference, and the concerned Further provided is an informing means for informing the operator of the distance to the interfering object corresponding to the movable part and the movable part having the possibility of interference.

  According to the present invention, it is possible to intuitively recognize a part of an X-ray diagnostic apparatus that is likely to interfere with an interferent and a distance between the interferer and the part at that time.

Hereinafter, first to third embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a perspective view of an X-ray diagnostic apparatus according to the first embodiment of the present invention.
As shown in FIG. 1, the X-ray diagnostic apparatus includes a diagnostic apparatus main body 100 installed in an imaging room and a processing apparatus 200 installed in a separate room. The diagnostic apparatus main body 100 and the processing apparatus 200 are connected by a cable 300, and information communication is performed between the diagnostic apparatus main body 100 and the processing apparatus 200 through the cable 300.

[Diagnostic device body 100]
First, the diagnostic apparatus main body 100 will be described.
FIG. 2 is a perspective view of the diagnostic apparatus main body 100 according to the embodiment.
As shown in FIG. 2, the diagnostic apparatus main body 100 is a so-called biplane type that can simultaneously image a subject P from two directions, and includes a front-side X-ray imaging system 110 and a side-side X-ray system. The radiographic system 120, a bed 130, a plurality of monitors 140, a plurality of non-contact sensors 150 for detecting the distance to the interference object, and a plurality of speakers 160 for outputting an alarm.

[Front system X-ray imaging system 110]
The front X-ray imaging system 110 includes a stand 111 placed on the floor, a C arm 112 held by the stand 111, a moving member 113 attached to an upper end of the C arm 112, and a lower part of the moving member 113. An X-ray generation unit 114 attached to the end portion on the side and an X-ray detection unit 115 attached to the lower end portion of the C arm 112 are provided.

  The stand 111 includes a leg portion 111a, a column portion 111b, and a holding portion 111c. The leg portion 111a is disposed substantially parallel to the floor surface, and one end portion thereof is supported so as to be rotatable about a vertical axis with respect to the floor surface. The column part 111b is arrange | positioned at substantially right angle with respect to a floor surface, The lower end part is supported so that it can rotate centering | focusing on a perpendicular axis with respect to the other end part of the leg part 111a. The holding portion 111c is supported so as to be rotatable about the vertical axis with respect to the upper end portion of the column portion 111b. Therefore, when the leg part 111a, the column part 111b, and the holding part 111c rotate, the X-ray generation part 114 and the X-ray detection part 115 move, and the imaging region of the subject P changes.

  The C arm 112 is held by a holding portion 111 c of the stand 111 so as to be movable along the axis of the C arm 112. Therefore, when the C arm 112 moves with respect to the holding unit 111c, the X-ray generation unit 114 and the X-ray detection unit 115 are inclined, and the imaging angle of the subject P changes.

  The moving member 113 is supported by a C arm 112 so as to be movable along a straight line connecting the X-ray generation unit 114 and the X-ray detection unit 115. Therefore, when the moving member 112a moves relative to the C arm 112, the X-ray generation unit 114 attached to the moving member 112a approaches or moves away from the subject P on the top 131.

  The X-ray generation unit 114 and the X-ray detection unit 115 are arranged such that each X-ray irradiation surface and the X-ray detection surface face each other. The subject P lying on the top 131 is positioned between the X-ray generation unit 114 and the X-ray detection unit 115. As the X-ray detection unit 115, a combination of an image intensifier and a TV camera, a flat panel detector (FPD), or the like is employed.

  A driving device (not shown) is connected to each movable part of the front-side X-ray imaging system 110, that is, the leg part 111a, the pillar part 111b, the holding part 111c, the C arm 112, and the moving member 113. In accordance with an instruction from the processing device 200, the driving device rotates, rotates, or moves each movable unit, and adjusts the positions and angles of the X-ray generation unit 114 and the X-ray detection unit 115.

[Side X-ray system 120]
The lateral X-ray imaging system 120 includes a movable hanger 121, an Ω arm 122 held by the hanger 121, an X-ray generation unit 123 attached to one end of the Ω arm 122, and the other end of the Ω arm 122. X-ray detection unit 124 attached to the unit.

  The hanger 121 includes two rails 121a and 121a fixed to the ceiling of the photographing room, a moving base 121b that moves along the rails 121a and 121a, and a holding portion 121c that is attached to the lower surface of the moving base 121b. Is done.

  Therefore, when the moving table 121b moves along the rails 121a and 121a, the X-ray generation unit 123 and the X-ray detection unit 124 move in the same direction, and the imaging location of the subject P changes.

  The Ω arm 122 is held by a holding portion 121 c of the hanger 121 so as to be movable along the axis of the Ω arm 122. Therefore, when the Ω arm 122 moves relative to the holding unit 121c, the X-ray generation unit 123 and the X-ray detection unit 124 attached to the Ω arm 122 are inclined, and the imaging angle of the subject P changes. Become.

  The X-ray generation unit 123 and the X-ray detection unit 124 are arranged such that each X-ray irradiation surface and the X-ray detection surface face each other. The subject P lying on the top 131 is positioned between the X-ray generator 123 and the X-ray detector 124. As the X-ray detection unit 124, a combination of an image intensifier and a TV camera, a flat panel detector (FPD), or the like is used as in the X-ray detection unit 115 of the front X-ray imaging system 110. Adopted.

  A driving device (not shown) is connected to each movable part of the lateral X-ray imaging system 120, that is, the movable table 121 b and the Ω arm 122. This driving device adjusts the positions and angles of the X-ray generation unit 123 and the X-ray detection unit 124 by rotating or moving each movable unit in accordance with an instruction from the processing device 200.

[Bed 130]
The bed 130 includes a top board 131 on which the subject P lies. A driving device 132 is connected to the movable portion of the bed 130, that is, the top plate 131. The driving device 132 moves the top plate 131 in accordance with an instruction from the processing device 200 and positions the subject P lying on the top plate 131 at the imaging position.

[Monitor 140]
The monitor 140 is suspended from the ceiling of the photographing room. These monitors 140 display images obtained by X-ray imaging, images obtained by other devices, various information, and the like.

[Non-contact sensor 150]
The non-contact sensor 150 includes a part that may interfere with the subject P, an operator, and other devices (for example, an ultrasonic diagnostic device) among a plurality of movable parts having the diagnostic device main body 100, for example, Side surface of leg portion 111a, side surface of column portion 111b, irradiation surface (not shown) of X-ray generation unit 114, detection surface (not shown) of X-ray detection unit 115, side surface of X-ray detection unit 115, X-ray generation unit 123 is provided on the irradiation surface (not shown) of 123, the detection surface (not shown) of the X-ray detector 124, and the like.

  These non-contact sensors 150 are connected to the processing apparatus 200 via a cable 300, and distance information between the movable part provided with the non-contact sensor 150 and an interference object approaching the movable part is transmitted to the processing apparatus 200. Output. The form of the non-contact sensor 150 is not particularly limited.

[Speaker 160]
The speaker 160 is attached to each movable part provided with the non-contact sensor 150, the front surface of the Ω arm 122, the upper end surface of the moving member 113, the front surface of the moving table 121b, the rear surface (not shown) of the moving table 121b, and the like. Is provided. These speakers 160 are connected to the processing device 200 via the cable 300 and output various alarms based on various signals from the processing device 200.

[Processing device 200]
Next, the processing apparatus 200 will be described.
When the X-ray diagnostic apparatus is activated, the processing apparatus 200 calculates the distance between each movable part and the interference object by interference calculation based on the design data and operation data of the diagnostic apparatus main body 100 input in advance. In addition, the interference object described here is a wall of the imaging room, each part (that is, other movable part or fixed part) of the diagnostic apparatus main body 100, and the like. Accordingly, the processing device 200 calculates the movable part of the diagnostic apparatus main body 100 and the wall of the imaging room, the distance between the movable part and the movable part, and the distance between the movable part and the fixed part. The fixed part refers to a part other than the movable part in the X-ray diagnostic apparatus.

  In addition, the processing device 200 compares the set distance set in advance for each movable part with the calculated distance between each movable part and the interference obtained by the interference calculation. Then, when there is a movable part whose calculated distance is smaller than the set distance, the processing device 200 causes an approach signal (first signal) indicating that the movable part is approaching the interference object, and interferes with the movable part. A distance signal (second signal) indicating the distance to the object and a specific signal (third signal) specifying the movable part approaching the interference object are output.

  Further, the processing device 200 is based on the obtained specific signal, and an approach sound signal indicating that the movable part and the interferer are approaching the speaker 160 provided in the movable part approaching the interferer. And a distance sound signal indicating the distance between the movable part and the interfering object is output.

  The speaker 160 generates an alarm based on the approach sound signal and the distance sound signal from the processing device 200. Therefore, since only the speaker 160 installed in the movable part approaching the interference object outputs an alarm, the operator can intuitively specify a place where there is a possibility of interference.

  The type of alarm is not particularly limited, and for example, an intermittent sound repeated at a short pitch is used. In this case, if the pitch is set so as to change according to the change in the distance, the operator can intuitively recognize the distance between the movable part and the interferer by the change in the pitch.

  Further, the processing device 200 calculates the distance between each movable part and the interferer based on distance information from the non-contact sensor 150 provided in each movable part of the diagnostic apparatus main body 100. The interfering object described here is an operator, the subject P, or another apparatus (such as an ultrasonic diagnostic apparatus). Therefore, the processing device 200 calculates the distance between each movable part of the diagnostic apparatus main body 100 and the operator, the distance between each movable part and the subject P, or the distance between each movable part and another device.

  The reason why the non-contact sensor 150 is used here is that information about the subject P, an operator, or another device cannot be input to the X-ray diagnostic device in advance, and interference calculation cannot be used. Because.

  In addition, the processing device 200 compares the preset distance set in advance with the detection distance between each movable part and the interference from the non-contact sensor 150. When there is a movable part whose detection distance is smaller than the set distance, the processing device 200 displays an approach signal indicating that the movable part is approaching the interference object, and the distance between each movable part and the interference object. The distance signal shown and the specific signal for specifying the movable part approaching the interference are output.

  Further, the processing device 200 is based on the obtained specific signal, and an approach sound signal indicating that the movable part and the interferer are approaching the speaker 160 provided in the movable part approaching the interferer. And a distance sound signal indicating the distance between the movable part and the interferer.

  The speaker 160 generates an alarm based on the approach sound signal and the distance sound signal from the processing device 200. Therefore, since an alarm is output only from the speaker 160 installed in the movable part approaching the interfering object, the operator can intuitively specify a place where there is a possibility of interference.

  The type of alarm is not particularly limited, but for example, an intermittent sound repeated at a short pitch is used. In this case, if the pitch of the intermittent sound is changed according to the change in the distance, the operator can intuitively recognize the distance between the movable part and the interfering object by the change in the pitch.

[Operation according to this embodiment]
In the X-ray diagnostic apparatus according to the present embodiment, the speaker 160 is provided in each movable part that may interfere with an interference object. Then, the processing device 200 has an approach sound signal indicating that the movable part and the interfering object are approaching the speaker 160 installed in the movable part approaching the interfering object, and the movable part and the interfering object. And a distance sound signal indicating the distance to.

  For this reason, the operator can intuitively recognize the part of the diagnostic apparatus main body 100 where the movable part and the interfering object are approaching, and therefore interrupts the operation or examination in order to confirm the approaching part or the approaching distance. There is no need. As a result, in order to avoid interference, the operation of the diagnostic apparatus main body 100 is not stopped, and treatment and examination are performed more smoothly.

  In the X-ray diagnostic apparatus according to the present embodiment, a plurality of speakers 160 are used, but the present invention is not limited to this. For example, one speaker 160 may be used instead of the plurality of speakers 160. Even in such a case, if different approach sound signals and distance sound signals are output for each movable part, the operator can hear the alarm output from the speaker 160 and It is possible to intuitively recognize the part where the interfering object is approaching.

  In addition, the X-ray diagnostic apparatus according to the present embodiment is configured to output an alarm from the speaker 160 and notify the operator of various types of information, but is not limited thereto. For example, a lamp may be used instead of the speaker 160. The light emission type of the lamp is not particularly limited. For example, blinking light that is repeated at a short pitch is used. In this case, if the pitch of the flashing light is changed according to the change in the distance between the movable part and the interfering object, the operator can observe the flashing light output from the lamp, thereby Can be recognized intuitively.

  Further, a plurality of lamps are used here instead of the plurality of speakers 160, but the present invention is not limited to this. For example, one lamp may be used instead of a plurality of lamps. Even in such a case, if the color of the flashing light is changed for each movable part, the operator can intuitively identify the part where the movable part and the interfering object are approaching from the color of the flashing light from the lamp. Can be recognized.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. Here, the description of the same configuration and effects as those of the first embodiment will be omitted.

  FIG. 3 is a perspective view of a diagnostic apparatus main body 100 according to a modification of the second embodiment of the present invention.

  As shown in FIG. 3, in the present embodiment, the non-contact sensor 150 is not provided on the movable part of the diagnostic apparatus main body 100. That is, in this embodiment, the distances between the movable parts of the diagnostic apparatus main body 100 and the interfering object are all calculated by interference calculation.

  Therefore, the virtual physique information of the subject P, the virtual physique information of the operator, and the like are input to the X-ray diagnostic apparatus in the present embodiment in advance, and the processing apparatus 200 can detect the virtual physique information and the diagnostic apparatus body 100. The distance between each movable part and the interference is calculated based on the design data or the operation data.

  With such a configuration, the number of parts of the X-ray diagnostic apparatus is reduced, so that the price of the apparatus is reduced and the assembly is simplified.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. Here, the description of the same configurations and effects as those of the first and second embodiments will be omitted.

  FIG. 4 is a perspective view of the diagnostic apparatus main body 100 according to the third embodiment of the present invention.

  As shown in FIG. 4, in this embodiment, non-contact sensors 150 are provided on all the movable parts of the diagnostic apparatus main body 100. In other words, in the present embodiment, the distances between the movable parts of the diagnostic apparatus main body 100 and the interference are all based on the detection results from the non-contact sensor 150. Therefore, the X-ray diagnostic apparatus does not need to perform interference calculation.

  With such a configuration, the operation of inputting various information to the X-ray diagnostic apparatus is omitted, and thus the time from the introduction of the X-ray diagnostic apparatus to the actual operation is shortened. That is, the X-ray diagnostic apparatus is used immediately after introduction.

  The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a perspective view of an X-ray diagnostic apparatus according to a first embodiment of the present invention. The perspective view of the diagnostic apparatus main body which concerns on the same embodiment. The perspective view of the diagnostic apparatus main body which concerns on 2nd Embodiment of this invention. The perspective view of the diagnostic apparatus main body which concerns on 3rd Embodiment of this invention.

Explanation of symbols

  111a ... Leg part (movable part), 111b ... Column part (movable part), 111c ... Holding part (movable part), 112 ... C arm (movable part), 113 ... Moving member (movable part), 121b ... Moving table ( Movable part), 122 .OMEGA. Arm (movable part), 140 monitor (fixed part), 150 non-contact sensor (detection means), 160 speaker (notification means), 200 processing apparatus (calculation means, signal generation means) ).

Claims (5)

In an X-ray diagnostic apparatus comprising a plurality of movable parts and having an interference prevention mechanism for preventing the movable parts from interfering with an interference object,
The interference prevention mechanism is
Calculating means for calculating a distance between the movable part and the interference;
A first signal indicating that there is a possibility of interference when the distance between the movable part and the interfering object is equal to or less than a preset value, and a first signal indicating the distance between the movable part and the interfering object. An X-ray diagnostic apparatus, comprising: a signal generation unit configured to generate a second signal and a third signal that identifies a movable part that may cause interference. In an X-ray diagnostic apparatus comprising a plurality of movable parts and having an interference prevention mechanism for preventing the movable parts from interfering with an interference object,
The interference prevention mechanism is
A detecting means provided on the plurality of movable parts, for detecting a distance between the movable part and the interference;
A first signal indicating that there is a possibility of interference when the distance between the movable part and the interfering object is equal to or less than a preset value, and a first signal indicating the distance between the movable part and the interfering object. An X-ray diagnostic apparatus, comprising: a signal generation unit configured to generate a second signal and a third signal that identifies a movable part that may cause interference. In the X-ray diagnostic apparatus comprising a plurality of movable parts and having an interference prevention mechanism for preventing the movable parts from interfering with movable interference objects and non-movable interference objects,
The interference prevention mechanism is
Calculating means for calculating a distance between the movable part and the non-movable interference object;
A detecting means provided in at least one movable part among the plurality of movable parts, and detecting a distance between the movable part and the movable interference;
A first signal indicating that there is a possibility of interference when the distance between the movable part and the interference object is equal to or less than a preset value, and a first signal indicating the distance between the movable part and the interference object. 2. An X-ray diagnostic apparatus comprising: a signal generation unit configured to generate a second signal and a third signal for identifying a movable part having a possibility of interference.   The signal generating means is a fourth signal indicating the priority order for preventing interference when the distance between the plurality of movable parts and the plurality of interfering objects corresponding to the respective movable parts is equal to or less than a preset value. The X-ray diagnostic apparatus according to claim 1, wherein:   Based on the first to third signals, there is a possibility of interference, a distance between a movable part having a possibility of interference and an interfering object corresponding to the movable part, and a movable part having a possibility of interference. The X-ray diagnostic apparatus according to claim 1, further comprising notification means for notifying an operator of the problem.

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