JP6391932B2 - Medical diagnostic equipment - Google Patents

Description

  Embodiments described herein relate generally to a medical diagnostic apparatus.

  When an X-ray CT apparatus or PET-CT apparatus is combined with an X-ray angio apparatus or other modalities, a couch may be shared. At this time, the gantry (also referred to as gantry) of the X-ray CT apparatus is configured to be movable along the floor.

  There is a medical diagnostic apparatus provided with a cable bear (registered trademark) that supplies wiring and the like to a gantry rotatably provided on a floor (for example, Patent Document 1).

  As a power supply means for supplying power to a gantry fixed to a floor, for example, there is one in which a cable is stored in a storage portion in which a floor surface is recessed in a groove shape (for example, Patent Document 2). The gantry described in this document houses a diagnostic image acquisition unit including an X-ray tube, a detector, a high voltage generation unit, a rotation drive unit, and the like.

  By combining the techniques described in these patent documents, a cable bear can be stored in the storage unit as a supply unit that supplies power to a gantry that is movably provided on the floor. Here, “supplying power to the gantry” means that the diagnostic image acquisition unit described above and a gantry driving mechanism unit for driving the gantry provided to be movable along the base surface including the floor. It means that power is supplied to the drive mechanism section.

JP 2009-148325 A JP 2001-286461 A

However, the bending radius when the cable bear is bent is larger than that of the signal line or the like. Therefore, in order for the cable bear to be stored in the storage unit, it is necessary to dig deep into the storage unit.
In addition, when the gantry is moved, the cable bear follows the gantry while changing the bending position, so that there is a problem that the cable bear may be disconnected due to secular change.

  This embodiment solves the above-described problem, and an object thereof is to provide a medical diagnostic apparatus that can avoid disconnection due to aging of a cable bear without having to dig deeply into a storage unit. .

In order to solve the above problems, a medical diagnostic apparatus according to an embodiment includes a gantry that is provided movably along a base surface and has an opening, and a power supply unit that supplies power to a drive mechanism unit installed on the gantry. In the medical diagnostic apparatus, the power supply means includes a current rail provided along the base surface, a groove shape on the base surface, and a conductive groove bottom and a pair of groove walls. A storage portion for storing a current rail having a groove opening that is open upward and formed by a wall, a part of the groove opening being blocked by the frame, and the frame is moved along the base surface. The contactor is configured to be able to supply power to the drive mechanism from the current rail by moving relative to the current rail while being in contact with the current rail. Placed to close the groove of the A conductive layer and an insulating layer that covers the conductive layer from the outside, and is formed in an elongated shape that covers the current rail, and is wound around the current rail in accordance with the movement of the gantry, or One or a plurality of cover members configured so as to be capable of being extended and disposed along the pair of groove walls at substantially the same height as the pair of groove walls, and an interval between them adjacent to each other or a distance between the pair of groove walls And reinforcing ridges arranged so as to be less than a predetermined width.

The side view of the medical diagnostic apparatus which concerns on 1st Embodiment. The front view of a medical diagnostic apparatus. The side view of a medical diagnostic apparatus when a mount frame approaches the bed. The AA line expanded sectional view of FIG. The BB line expanded sectional view of FIG. The expanded sectional view of the electric power feeding means which concerns on 2nd Embodiment. The expanded sectional view of the electric power feeding means which concerns on 3rd Embodiment.

[First Embodiment]
A first embodiment of a medical diagnostic apparatus will be described with reference to the drawings.
First, the configuration of the medical diagnostic apparatus 1 will be briefly described with reference to FIG. FIG. 1 is a side view of the medical diagnostic apparatus 1. Here, an X-ray CT apparatus will be described as the medical diagnostic apparatus 1.

  As shown in FIG. 1, the medical diagnostic apparatus 1 includes a gantry 10, a bed 20, and a power feeding unit 30. The gantry 10 has an inner frame and an outer cover. In the following description, the gantry 10 refers to either the frame or the cover, or both. In addition, a floor, a ceiling, a standing wall (including a partition wall), and other structures that divide a space where the medical diagnostic apparatus 1 is installed may be referred to as a “base surface”.

[Base 10]
The gantry 10 has an opening 11 and a bottom 12. The gantry 10 detects an X-ray tube (not shown) that irradiates X-rays around the opening 11 and an X-ray that is irradiated from the X-ray tube and passes through a subject (not shown) in the opening 11. An X-ray detector (not shown) is arranged to be opposed. The X-ray tube and the X-ray detector are configured to be rotatable around the center of the opening 11, and a motor is used as a force for rotating them (rotation drive unit). The gantry 10 is provided with a high voltage generator (not shown) that applies a high voltage to the X-ray tube.

  FIG. 2 is a front view of the medical diagnostic apparatus 1, and FIG. 3 is a side view of the medical diagnostic apparatus 1 when the gantry 10 approaches the bed 20. As shown in FIGS. 1 to 3, a pair of guide rails 13 are extended on the floor as the base surface 2. The gantry 10 is guided by the guide rail 13 so as to be movable between a position away from the couch 20 along the base surface 2 (see FIG. 1) and a position approaching the couch 20 (see FIG. 3). It is self-propelled on the rail by power and is held at an arbitrary position by the holding force of the motor (the gantry drive mechanism).

  A storage portion 3 is provided side by side along the guide rail 13 on the base surface 2. The storage unit 3 is disposed between the pair of guide rails 13. The gantry 10 is disposed so as to cover a part of a groove 3a (described later) of the storage unit 3 from the outside by being spanned over the storage unit 3. A slight gap is provided between the base surface 2 and the bottom 12 of the gantry 10.

  Here, the direction in which the gantry 10 is moved may be referred to as “Z-axis direction” or “body axis direction”. Furthermore, the horizontal direction orthogonal to the Z-axis direction may be referred to as the “X-axis direction”. Furthermore, the direction orthogonal to the Z-axis direction and the X-axis direction may be referred to as “Y-axis direction”, “height direction”, or “depth direction”.

[Bed 20]
As shown in FIGS. 1 and 3, the bed 20 has a top plate 21 on which a subject (not shown) is placed. The top plate 21 is configured to be height adjustable with respect to the gantry 10.

[Power supply means 30]
FIG. 4 is an enlarged cross-sectional view taken along line AA in FIG. As shown in FIGS. 1 and 4, the power supply means 30 is provided in the storage unit 3. The power supply means 30 supplies power to a drive mechanism unit including the diagnostic image acquisition unit and the gantry moving mechanism unit described above.

(Storage part 3)
As shown in FIG. 4, the power supply means 30 is provided in the storage portion 3 in which the base surface 2 is recessed in a groove shape. The storage unit 3 includes a groove opening 3a, a groove bottom 3b, and a groove wall 3c that are open upward. The groove bottom 3b and the groove wall 3c are made of a conductive material. The conductive material is shown hatched in FIG. The groove bottom 3b and the groove wall 3c are connected to a ground block 3d (described later).

  The groove 3 a is covered with a conductive layer 331 (described later) of the cover member 33. Thereby, the inner surface of the accommodating part 3 is comprised by the groove bottom 3b and the groove wall 3c which have electroconductivity, and the electroconductive layer 331. The conductive layer 331 is connected to the earth block 3d.

  The upper end edges of both groove walls 3c correspond to both edges of the groove opening 3a. The groove 3a of the storage unit 3 has a width in the X-axis direction of about 102 mm. The groove bottom 3b of the storage part 3 has a depth of about 40 mm.

  Generally, the depth of the storage part that stores the cable bear is about 150 mm. On the other hand, the depth of the storage part 3 is shallower by about 90 mm (= 150-40) than the depth of the storage part that stores the cable bear. Therefore, the operation | work at the time of constructing the accommodating part 3 becomes easy.

  Further, the width of the storage portion for storing the cable bear is about 250 mm. On the other hand, the width of the storage portion 3 is reduced by about 148 mm (= 250−102) as compared with the width of the storage portion for storing the cable bear. Therefore, the work when constructing the storage unit 3 is further facilitated.

  An earth block 3d is disposed in electrical connection with both edges of the groove opening 3a (upper edge of the groove wall 3c). A conductive layer 331 (described later) of the cover member 33 that covers the groove 3a is in contact with the ground block 3d. Thereby, the inner surface (the groove bottom 3b and the groove wall 3c having conductivity and the conductive layer 331) of the storage portion 3 is grounded. Therefore, the noise inside the storage unit 3 is difficult to leak to the outside, and conversely, the noise is difficult to enter the storage unit 3 from the outside.

  A water receiving portion 3e, which is a side groove, is disposed outside the ground block 3d (on the side opposite to the edge of the groove port 3a). The mobile medical diagnostic apparatus 1 for the gantry 10 may be installed in an operating room. In the operating room, water or the like may be applied to the floor as the base surface 2 during cleaning. By providing the water receiving part 3e outside the groove 3a, water or the like soaks into the storage part 3 from the outside of the storage part 3 between the cover member 33 and the base surface (floor) 2. Can be prevented.

  The storage unit 3 stores four current rails 31 (about 15 mm in width, which will be described later) as distribution lines for supplying power to the drive mechanism unit described above, and a gap between adjacent current rails 31. Therefore, the width of the groove opening 3a in the X-axis direction is about 70 mm. Actually, since the reinforcing protrusion 341 (described later) is provided, the width is about 102 mm.

  As shown in FIG. 4, the power supply means 30 includes a current rail 31, a contact 32, a cover member 33, a rail base 34, and a contact base 35.

(Rail stand 34)
The rail base 34 is formed of an insulating material and is fixed to the groove bottom 3 b of the storage portion 3. In the examination room, an ultrasonic diagnostic apparatus (not shown) is provided as a modality other than the X-ray CT apparatus. The ultrasonic diagnostic apparatus is provided with a caster (not shown). The caster has, for example, a wheel (not shown) having a width of about 20 mm. As described above, since the width of the groove opening 3a is about 102 mm, when the ultrasonic diagnostic apparatus is moved along the base surface (floor) 2, the wheel may enter the groove opening 3a. If the groove 3a is bypassed, the ultrasonic diagnostic apparatus cannot be moved quickly, which may hinder the diagnosis.

  The rail base 34 has three reinforcing ridges 341 so that wheels of casters do not enter the groove 3a. The reinforcing protrusion 341 has a width in the X-axis direction of about 10 mm. The three reinforcing ridges 341 extend parallel to each other along the Z-axis direction, and are formed between the edge of the groove 3a (upper edge of the groove wall 3c) and the reinforcing ridge 341 adjacent thereto. It arrange | positions along the groove wall 3c so that a clearance gap (two) or the clearance gap (two) between the mutually adjacent reinforcing protruding item | line parts 341 may become less than a predetermined width | variety. Here, the “predetermined width” corresponds to the width of the wheel of the caster, for example. By making the four gaps smaller than the width of the caster wheel, the wheels are prevented from entering these gaps. It will be described later that the gap is set to about 18 mm assuming a predetermined width (wheel width) of about 20 mm.

  Further, the three reinforcing ridges 341 have substantially the same height as the base surface 2 (the edge of the groove 3a). Therefore, a large step does not occur in the height direction between the reinforcing ridge portion 341 and the base surface 2. As a result, the caster can be moved smoothly.

(Rail 31 for current)
The current rail 31 is disposed in four gaps, extends along the Z-axis direction, and is fixed to the rail base 34. The current rail 31 has a width of about 15 mm in the X-axis direction and a height of about 15 mm in the Y-axis direction. A gap of about 18 mm is set by the current rail 31 having a width of about 15 mm and a gap of about 1.5 mm provided on both sides thereof.

(Contact block 35)
As shown in FIGS. 1 and 4, the contact base 35 is provided on the bottom 12 of the gantry 10. In FIG. 4, the bottom 12 is not shown. A slight gap is provided between the contact base 35 and the reinforcing protrusion 341 so that the contact base 35 and the reinforcing protrusion 341 do not contact each other. The contact base 35 and the reinforcing protrusion 341 may be brought into contact with each other, and when the mount 10 is moved, the contact base 35 may be configured to slide on the reinforcing protrusion 341. .

(Contact 32)
The contact 32 is disposed in four gaps and is provided on the contact base 35. The contact 32 has a width of about 15 mm in the X-axis direction and a height of about 15 mm in the Y-axis direction. The contact 32 is configured to be able to supply power to the gantry 10 from the current rail 31 by moving while contacting the current rail 31 when the gantry 10 is moved in the Z-axis direction. The contact 32 and the high voltage generator are electrically connected.

(Cover member 33)
As described above, the gantry 10 is disposed so as to block a part of the groove 3a of the storage unit 3 from the outside. A cover member 33 is provided so as to cover from outside the part other than the part of the groove 3a that is blocked by the gantry 10.

  5 is a cross-sectional view taken along line BB in FIG. As shown in FIGS. 1, 4, and 5, the cover member 33 has a long shape that covers the current rail 31. A part of the cover member 33 is connected to the gantry 10. FIG. 5 shows an insulating layer 332 (described later) as a portion of the cover member 33 connected to the contact base 35 of the gantry 10. The portion of the contact base 35 connected to the insulating layer 332 has an insulating property. Both end portions of the cover member 33 are extended to the end portions of the storage portion 3 in the Z-axis direction. Winding mechanisms 40 are arranged on both sides in the longitudinal direction (in FIGS. 1 and 3, left and right of the storage unit 3).

  The winding mechanism 40 includes a winding shaft 41, a motor (not shown), power transmission means (not shown), and a control unit (not shown). The end of the cover member 33 is connected to the winding shaft 41. The control unit controls the motor and the power transmission means in accordance with the movement and moving direction of the gantry 10.

  For example, when the gantry 10 is moved from a position away from the bed 20 (see FIG. 1) to a position closer to the bed 20 (see FIG. 3), the control unit controls the motor and the power transmission means. The power of the motor is transmitted to the winding shaft 41 of the right winding mechanism 40, and the cover member 33 is wound. Power is not transmitted to the winding shaft 41 of the left winding mechanism 40, and the cover member 33 is fed out.

  In addition, when the cover member 33 is wound up, the cover member 33 is wound up in a stretched state by winding a length that is equal to or longer than the moving amount of the gantry 10. Further, when the cover member 33 is drawn out, the holding force of the motor works, and the cover member 33 is drawn out without slack in a stretched state.

  As described above, when the cover member 33 is wound or fed out by the left and right winding mechanisms 40, the groove 3a of the storage portion 3 is always closed from the outside.

  The cover member 33 is provided with a conductive layer 331 on the lower layer side (side facing the inside of the storage unit 3) and an insulating layer 332 on the upper layer side. As described above, when the groove 3a is covered by the cover member 33, the conductive layer 331 contacts the ground block 3d. In order to improve the contact between the conductive layer 331 and the earth block 3d, the portion of the conductive layer 331 that contacts the earth block 3d may be formed in a brush shape.

  The cover member 33 has a sheet shape and has relatively weak rigidity. However, as shown in FIG. 4, the cover member 33 has a shape placed on the reinforcing protrusion 341 described above. When covered, it does not bend downward, and even if the wheels of the caster pass over the cover member 33 during movement of the ultrasonic diagnostic apparatus, large deformation is avoided.

[Signal transmission means 30A]
The configuration of the power supply unit 30 and the like has been described above. Next, the configuration of the signal transmission means 30A for transmitting a control signal to the X-ray tube, the X-ray detector, and the high voltage generator and receiving the detection signal from the X-ray detector will be described.

  As illustrated in FIG. 4, the floor as the base surface 2 is provided with a storage unit 300 in which the signal transmission means 30 </ b> A is stored. Since the storage unit 300 has the same configuration as the configuration of the storage unit 3, the same number is assigned to the configuration of the storage unit 3, and the description thereof is omitted. Needless to say, the width of the storage unit 300 in the X-axis direction is set to be less than a predetermined width, as with the storage unit 3.

  The signal transmission means 30 </ b> A includes a fixing antenna 36, a moving antenna 37, a fixing antenna base 38, and a moving antenna base 39.

  The fixing antenna base 38 is provided on the bottom 12 of the gantry 10. The fixing antenna 36 is fixed to a fixing antenna base 38. The moving antenna base 39 is fixed to the groove bottom 3 b of the storage unit 300. The moving antenna 37 extends along the Z-axis direction and is installed on the moving antenna base 39.

  Since the signal transmission means 30A having the fixing antenna 36 and the like is provided in the storage unit 300, the storage unit 300 is constructed similarly to the storage unit 3 because the storage unit 300 is narrow in width and shallow in depth. Work becomes easier.

(Operation)
The configuration of the medical diagnostic apparatus according to the first embodiment has been briefly described above. Next, the operation of the medical diagnostic apparatus 1 will be described with reference to the drawings.

  As shown in FIG. 1 and FIG. 3, when the gantry 10 is moved, the contact 32 moves while being in contact with the current rail 31, so that the high voltage generator and the like are connected from the current rail 31 through the contact 32. It becomes possible to supply electric power to.

  Further, even when the gantry 10 is moved, the control antenna and the detection signal can be transmitted and received between the gantry 10 and the console (not shown) by the fixing antenna 36 and the moving antenna 37.

  Since the inner surface of the storage unit 3 in which the power feeding unit 30 is stored and the storage unit 300 in which the signal transmission unit 30A is stored are electrically conductive and grounded, the storage units 3 and 300 are moved from the inside to the outside. Noise hardly leaks, and further, it is difficult for noise to enter the storage units 3 and 300 from the outside.

[Second Embodiment]
Next, a second embodiment of the medical diagnostic apparatus will be described with reference to FIG.
Note that in the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different components are mainly described.

  FIG. 6 is an enlarged cross-sectional view of the power feeding means. In the first embodiment, the rail base 34 has three reinforcing ridges 341, thereby creating four gaps with a width of about 18 mm (predetermined width) in the storage part 3. One current rail 31 is disposed in the gap. The width of the gap of about 18 mm corresponds to the width of the caster wheel being about 20 mm.

  On the other hand, in 2nd Embodiment, the rail stand 34 has the one protruding protrusion part 341 for reinforcement. Thereby, two gaps are created in the storage part 3. Two current rails 31 are arranged in one gap. The width of the gap is about 34.5 mm (15 × 2 + 1.5 × 3). The width of the current rail 31 is about 15 mm, and the gap between the groove wall 3 c and the current rail 31, the gap between the adjacent current rails 31, and the current rail 31 and the reinforcing protrusion 341 The gap between them is about 1.5 mm. The width of the gap of about 34.5 mm corresponds to the width of the caster wheel being about 36 mm.

  As described above, in order to change the gap according to the width of the wheel, the number and width of the reinforcing protrusions 341 may be changed.

[Third Embodiment]
Next, a third embodiment of the medical diagnostic apparatus will be described with reference to FIG.
Note that in the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different configurations are mainly described.

  In the power supply means 30 of the above-described embodiment, the contact 32 is disposed on the upper side and the current rail 31 is disposed on the lower side. However, in the opposite manner, that is, the current rail 31 is disposed on the upper side. The contact 32 may be disposed on the lower side.

  As shown in FIG. 7, in this aspect, the power feeding means 30 includes a roof member 39a and an L-shaped member 39b. The roof member 39a is extended along the Z-axis direction so as to cover the current rail 31 from above.

  The roof member 39a is formed in a triangular cross-sectional shape, and has a top corner, a bottom corner, a hypotenuse, and a bottom. A roof member 39a arranged in the storage portion 3 with the apex portion facing upward is shown in FIG. 7 with hatching.

  The current rail 31 is fixed to the bottom side of the roof member 39a. The roof member 39a has a function of a rail base for fixing the current rail 31. The bottom corner portion is supported by the groove wall 3c of the storage portion 3 at a predetermined interval. Furthermore, both ends of the roof member 39a in the Z-axis direction are supported by the groove wall 3c.

  The L-shaped member 39 b is connected to the contact base 35. The L-shaped member 39b extends downward along the groove wall 3c opposite to the groove wall 3c that supports the bottom corner portion, and further extends along the X-axis direction so as to face the lower surface of the current rail 31. Extended. The contact 32 is arranged on the L-shaped member 39b extended along the X-axis direction so as to contact the lower surface of the current rail 31.

  In the third embodiment, when the roof member 39a covers the current rail 31 from above, even when water splashes occur near the current rail 31 due to some cause (for example, watering during cleaning). Since water does not reach the current rail 31, it is protected from water.

  In addition, in the said embodiment, the accommodating part 3 is arrange | positioned on the floor as the base surface 2, and the gap | interval formed in the accommodating part 3 is set to less than the predetermined width | variety of the reinforcement protruding item | line part 341. The number and width were decided. However, it goes without saying that the reinforcing protrusion 341 is unnecessary if the width of the groove 3a of the storage portion 3 is less than a predetermined width.

  Further, in the embodiment, the storage unit 3 and the guide rail 13 are provided on the floor as the base surface 2. However, even if the guide rail 13 is provided on the floor, the storage unit 3 has a ceiling or a standing wall as the base surface 2. There are times when it is provided. In some cases, the guide rail 13 is provided on the ceiling or the standing wall, and the storage unit 3 is also provided on the ceiling or the standing wall. In these cases, since it is not necessary to consider that a wheel of a caster enters into the groove opening 3a of the storage section 3, the width of the groove opening 3a of the storage section 3 does not need to be less than a predetermined width, and the reinforcement Needless to say, the convex protrusion 341 is also unnecessary.

  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 novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Medical diagnostic apparatus 2 Base surface 3 Storage part 3a Groove opening 3b Groove bottom 3c Groove wall 3d Ground block 3e Water receiving part 10 Base 11 Opening 12 Bottom part 13 Guide rail 20 Bed 21 Top plate 30 Power supply means 31 Current rail 32 Contact 33 Cover member 331 Conductive layer 332 Insulating layer 34 Rail base 341 Reinforcing ridge 35 Contact base 36 Fixed antenna 37 Moving antenna 38 Fixed antenna base 39 Moving antenna base 30A Signal transmission means 300 Storage section

Claims (2)

In a medical diagnostic apparatus that is provided movably along a base surface and has an opening, and a power supply unit that supplies power to a drive mechanism unit installed on the base,
The power supply means is
A current rail provided along the base surface;
The base surface is formed in a groove shape and has a conductive groove bottom and a pair of groove walls, and has a groove opening opened upward formed by the pair of groove walls. A storage section for storing the current rail blocked by the mount;
A contact provided on the pedestal and configured to be able to supply power to the drive mechanism from the current rail by moving relative to the current rail while the pedestal is moved along the base surface. With the child,
An electrically conductive layer that is connected to the gantry and is disposed so as to close the groove opening other than the part of the storage portion even when the gantry is moved, and covers the grounded conductive layer and the conductive layer from the outside And a cover member that is formed in a long shape that covers the current rail, and is configured to be wound or fed out in accordance with the movement of the gantry from both ends of the current rail,
One or a plurality of grooves are disposed along the pair of groove walls at substantially the same height as the pair of groove walls, and an interval between them or a distance between the pair of groove walls is less than a predetermined width. The reinforcing ridges arranged as follows:
A medical diagnostic apparatus characterized by comprising: The slot of the storage part is opened upward,
In the storage portion, a roof member is disposed so as to cover the current rail from above,
The medical diagnostic apparatus according to claim 1 , wherein the contact is disposed so as to contact a side surface or a lower surface of the current rail.

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