JP6284080B2 - X-ray imaging aids - Google Patents

Description

  The present invention relates to an X-ray imaging assisting tool, and more particularly to an assisting tool for compressing the stomach used for X-ray imaging in a state where the stomach is compressed.

  The present inventors have previously invented an X-ray imaging aid used in X-ray imaging of the stomach. This X-ray imaging auxiliary tool is used in a state where the X-ray imaging auxiliary tool is sandwiched between the bed and the subject by placing it on the epigastric portion of the subject prone on the bed of the X-ray imaging apparatus. In particular, when X-ray imaging of the stomach is performed, an X-ray imaging auxiliary tool is inflated to compress the stomach, thereby enabling imaging of a stomach wall, particularly a fold image of the stomach wall (for example, Patent Document 1). reference.).

  This X-ray imaging auxiliary tool has two balloons that are controlled to be inflated and deflated, and is used for subjects with different body types, such as subjects who are thinner than the standard body type and subjects who are thicker than the standard body type. On the other hand, it is possible to cope by adjusting the degree of inflation of the balloon. Moreover, the degree of inflation of the balloon can be adjusted by an operator who is taking an image while confirming a transmission image of the stomach, and can be taken in a suitable inflated state.

JP 2013-230328 A

  However, since the conventional X-ray imaging auxiliary tool only has two balloons stacked one above the other, the direction of compression of the stomach due to balloon inflation is only one direction vertically upward from the upper surface of the bed. .

  Therefore, it is intended only for imaging of the entire stomach called double contrast imaging, and in the case of performing a detailed examination that captures gastric fold images in detail, it is possible to perform suitable imaging partially. Compared to the size, the area that can be compressed with the balloon was small, and when taking a picture of various parts of the stomach wall, it was necessary to shoot several times.

  In addition, to adjust the compression position of the stomach with a balloon in both cases of taking a full stomach image by double contrast imaging and taking a precise stomach wall fold image, the posture of the subject was adjusted for each radiograph. The operator adjusts the posture by giving instructions to the subject, but the subject may misunderstand the instructions of the operator, and the subject cannot adjust the posture as instructed by the operator, There was a problem of taking time and effort.

  In view of the current situation, the present inventors can adjust the direction of compression of the stomach in an X-ray imaging auxiliary tool, and can capture the entire stomach by double contrast imaging and precise stomach wall fold images. Research and development has been conducted to easily realize both, and the present invention has been achieved.

  The X-ray imaging aid of the present invention is placed on the epigastric portion of a subject prone on the bed when performing X-ray imaging of the stomach with an X-ray imaging apparatus equipped with a tiltable bed. In the X-ray imaging auxiliary tool used for compressing the abdomen, the X-ray imaging assisting tool includes compression means that expands when fluid is supplied, and fluid supply means that supplies fluid to the compression means. A balloon inflated by the inflow of fluid; and a package containing the balloon. The package includes a lower package in which four balloons are arranged in a grid of 2 rows and 2 columns, and the lower package. It is constituted by an upper package on the upper surface side and the balloons are arranged with the centers positioned at the center positions of the four balloons.

  Furthermore, in the X-ray imaging aid of the present invention, the balloon disposed in the upper package has a larger volume than the balloon disposed in the lower package, and further, in the contracted state of each balloon. A feature is that a part of the balloon disposed in the upper package overlaps with the center of the balloon disposed in the lower package vertically.

  According to the present invention, the direction of compression of the stomach can be set not only vertically upward from the upper surface of the bed, but also obliquely upward, and the operator can give as few instructions as possible to adjust the posture. In addition, the stomach can be smoothly imaged while reducing the burden on the subject.

It is explanatory drawing of the use condition of the auxiliary tool for X-ray imaging which concerns on this invention. It is explanatory drawing of the balloon of this embodiment. It is explanatory drawing of the package of this embodiment. It is explanatory drawing of the package of this embodiment. It is explanatory drawing of the expansion state of the expansion body of this embodiment. It is the photograph of the stomach part image | photographed using the auxiliary tool for X-ray imaging of this embodiment. It is explanatory drawing of the expansion state of the expansion body of this embodiment.

  The X-ray imaging auxiliary tool of the present invention is used when X-ray imaging of the stomach is performed by an X-ray imaging apparatus having a tiltable bed. It is used to press the abdomen by placing it on the epigastric part of the subject who is prone on the bed.

  That is, as shown in FIG. 1, the X-ray imaging apparatus A includes a bed 10 on which a subject sits, a machine table 20 including a tilting mechanism that makes the bed 10 in an appropriate tilted state, and a stomach 10 on the bed 10. And an irradiation unit (not shown) for irradiating the subject with X-rays.

  Inside the bed 10, an X-ray detector (not shown) is provided at an appropriate position so that imaging based on X-rays transmitted through the subject can be performed.

  The X-ray imaging auxiliary tool of the present invention includes an expansion body 40 that expands when a fluid is supplied, and a fluid supply mechanism that supplies fluid to the expansion body 40.

  The inflatable body 40 is a compression means for compressing the abdomen of the subject prone on the bed 10 and is arranged in the epigastric portion of the subject prone on the bed 10.

  The fluid feeding mechanism is a fluid feeding means, and in the present embodiment, a compressor 51 that pumps air and a control that performs control for feeding the air fed from the compressor 51 to a predetermined supply destination. The unit 52 and an operation unit 53 for remotely operating the control unit 52 are configured.

  It should be noted that hospitals and other facilities are often provided with compressed air supply piping, and may be connected to compressed air supply piping instead of the compressor.

  The controller 52 includes a regulator (not shown) for adjusting the pressure of the air supplied from the compressor 51 and a plurality of switching valves (not shown) for switching the destination of the supplied air. Z). That is, as will be described later, the inflatable body 40 is provided with five balloons, and one end of the air supply tube 54 is connected to each balloon, and the switching valve of the control unit 52 is connected to the other end of the air supply tube 54. Are connected and the switching valve is opened based on an operation signal from the operation unit 53, whereby air is supplied to the balloon via the air supply tube.

  The operation unit 53 inputs an operation signal for opening and closing the switching valve as described above, and is connected to the control unit 52 via the signal line 55. The operation unit 53 provided separately from the control unit 52 is installed in an operation room where the X-ray imaging apparatus A is operated, and can be operated in a state where there is no risk of X-ray exposure.

  In the X-ray imaging auxiliary tool of the present invention, as described later, the stomach portion is compressed by controlling the inflation / deflation of the five balloons. Of these five balloons, the four balloons are inflated. Adjustment is performed by operating the joystick 53a, and the expansion of the remaining one balloon is adjusted by operating the first button 53b provided next to the joystick 53a. A second button 53c is provided next to the first switch 53b on the opposite side of the joystick 53a. By operating the second button 53c, air in each balloon is sucked to rapidly deflate each balloon. Yes.

  In the fluid feeding mechanism of the present embodiment, the balloon of the inflating body 40 is inflated with air, but a fluid that does not affect X-rays such as water may be used.

  Hereinafter, the inflating body 40 of the compression means, which is a main part of the present invention, will be described in detail.

  The inflatable body 40 according to the present embodiment includes five balloons that are inflated by inflowing air, and a package that contains the five balloons at predetermined positions.

  In the X-ray imaging auxiliary tool described in Japanese Patent Application Laid-Open No. 2013-230328, which corresponds to the invention of the prior application of the present invention, the balloon is inflated to a predetermined volume or more by attaching a cloth restraint surrounding the balloon to the balloon. However, as a result of subsequent research, it was confirmed that the same effect could be obtained with the package alone. Therefore, in this embodiment, as will be described later, a balloon on which no restraint is attached is used.

  As shown in FIG. 2 (a), the balloon 41 of this embodiment is composed of a front seat 41a and a rear seat 41b that are rectangular with the same size. The front sheet 41a and the rear sheet 41b are overlapped with each other, and one end of the air feeding tube 54 is inserted between the front sheet 41a and the rear sheet 41b, and in this state, as shown in FIG. As shown in FIG. 3C, a balloon 41 is obtained by integrating the outer peripheral edges of the combined sheets 41a and 41b by heat fusion.

  In this embodiment, a polyethylene terephthalate film is used for the front sheet 41a and the rear sheet 41b so that the first sheet 41a and the second sheet 41b themselves do not expand and contract as much as possible. The film is 100 μm thick.

  The package that encloses the balloon 41 is made of canvas. By forming the package with a canvas, it is considered that a general fabric has little elongation, and a sufficient effect of suppressing the overexpansion of the balloon 41 can be obtained without providing a restraint.

  As shown in FIGS. 3 and 4, the package includes a lower package 42 in which four balloons are arranged in a grid of 2 rows and 2 columns, and four balloons on the upper surface side of the lower package 42. And an upper package 43 in which the balloon is arranged with the center positioned at the center position.

  As shown in FIGS. 3 and 4, the lower packaging body 42 is formed by stitching together a top sheet 42 a and a bottom sheet 42 b that are each substantially square in plan view. In the present embodiment, in consideration of a change in shape when the encapsulated balloon is inflated, each corner portion of the upper surface sheet 42a and the lower surface sheet 42b having a substantially square shape is rounded. The top sheet 42a and the bottom sheet 42b are not limited to a substantially square shape in plan view, and may have an appropriate shape.

  The upper surface sheet 42a and the lower surface sheet 42b are integrated by forming an outer stitched portion 42c by overlapping each other and stitching the outer edges. However, not all the outer edges are sewn together, but unsewn portions 42d that are not partially sewn are provided at predetermined positions.

  Furthermore, the upper surface sheet 42a and the lower surface sheet 42b are sewn linearly so as to cross the approximate center in the vertical direction to form a transverse stitching portion 42e, and are sewn linearly so as to cross the approximate center in the lateral direction. A longitudinal suture part 42f is formed. The transverse stitching portion 42e and the vertical stitching stitching portion 42f divide the lower packaging body 42 into four rows and two columns of lattice-like regions.

  One non-sewn portion 42d is provided in each region of the lower package 42 divided by the transverse stitching portion 42e and the longitudinal stitching portion 42f. The unsutured portion 42d is an insertion port for the balloon 41, and the balloon 41, which is made smaller by folding, can be inserted into the lower package 42 from the unsutured portion 42d. Therefore, the air supply tube 54 communicated and connected to the balloon 41 is pulled out from the unsutured portion 42d. The unsutured portion 42d may be sewn to the extent that the air supply tube 54 is not blocked after the balloon 41 is inserted.

  The size of each region of the lower package 42 divided by the transverse stitching portion 42e and the longitudinal stitching portion 42f is approximately the same size, and in this embodiment, each region is 100 mm x in a deflated state. Each balloon 41 having a size of 100 mm is inserted.

  As shown in FIG. 3, the upper package 43 is formed by stitching a cover sheet 43 a having a substantially square shape in plan view to the upper sheet 42 a of the lower package 42. The cover sheet 43a has rounded corners in consideration of a shape change when the encapsulated balloon is inflated. 3 and 5, reference numeral 43b indicates a stitched portion.

  The cover sheet 43a having a substantially square shape in plan view has the vertical direction and the horizontal direction substantially parallel to the vertical direction and the horizontal direction of the lower packaging body 42, respectively, and the center of the cover sheet 43a is the lower packaging body 42. The cross stitching portion 42e and the vertical stitching portion 42f are arranged so as to overlap as much as possible.

  In this way, the four balloons 41 disposed in the lower package 42 are overlapped by overlapping the center of the cover sheet 43a at the intersection of the transverse stitching portion 42e and the longitudinal stitching portion 42f of the lower package 42. The center of the balloon 41 disposed in the upper package 43 is positioned at the center position.

  When the cover sheet 43a is sewn to the upper surface sheet 42a, first, the upper surface sheet 42a and the lower surface sheet 42b are sewn together by the cross stitching portion 42e and the vertical stitching portion 42f, and the cover sheet 43a is covered at a predetermined position. The sheets 43a are overlapped, and the cover sheet 43a is sewn to the upper surface sheet 42a along the outer peripheral edge of the cover sheet 43a. Thereafter, the outer edges of the upper sheet 42a and the lower sheet 42b are sewn together.

  Even when the cover sheet 43a is sewn to the upper surface sheet 42a, an upper non-sewn portion 43d that is not partially sewn is provided. A balloon 41 that is made smaller by being folded inside the upper package 43 can be inserted from the upper non-sewn portion 43d.

  The balloon 41 inserted into the upper package 43 has a larger volume than the balloon 41 inserted into each region of the lower package 42 to have a large volume. Specifically, the balloon 41 inserted into the upper package 43 has a size of about 140 mm × 140 mm in the deflated state.

  Thus, by setting the balloon 41 to be inserted into the upper packaging body 43 to have a larger volume than the balloon 41 to be inserted into the lower packaging body 42, the conventional balloon is stacked in two stages, It is possible to compensate for a decrease in the amount of change in the vertically upward direction from the upper surface of the bed when the lower balloon is inflated.

  Further, the balloon 41 to be inserted into the upper package 43 is partly up and down at the center of each balloon 41 of the lower contraction package 42 in the deflated deflated state. Overlapping.

  That is, when the balloon 41 of the lower package 42 is inflated, the portion with the largest amount of change in the vertical upward direction from the upper surface of the bed is overlapped with the balloon 41 of the upper package 43 vertically. In addition, it is possible not only to facilitate the adjustment of the compression direction of the stomach due to the inflation of the balloon 41 of the lower package 42, but also to change the compression direction as large as possible.

  When using the X-ray imaging aid of the present invention, the X-ray imaging aid is placed in the epigastric portion of the subject prone on the bed, and as shown in FIG. The balloon 41 is inflated. At this time, the operator who operates the X-ray imaging auxiliary tool operates the degree of inflation of the balloon 41 by the first switch 53b of the operation unit 53 while confirming the captured image.

  As shown in FIG. 6 (a), when the expanded X-ray imaging aid presses the stomach portion so that the stomach wall folds can be seen, the operator stops the expansion of the balloon 41 of the upper package 43. To do.

  Next, the operator operates one or two of the four balloons 41 of the lower package 42 by operating the joystick 53a of the operation unit 53. FIG. 7 shows a state in which one of the four balloons 41 of the lower packaging body 42 is inflated, and the upper packaging that compresses the stomach by the balloon 41 of the lower packaging body 42 being inflated. The body 43 can be tilted, and by adjusting the tilted state of the upper package 43, the direction of compression of the stomach by the upper package 43 can be adjusted.

  Therefore, as shown in FIG. 6B and FIG. 6C, it is possible to change the region of the stomach wall where the folds can be seen, and the fold image can be operated by the operator without having the subject change the posture. Shooting becomes possible, and quick shooting becomes possible.

  In the operation with the joystick 53a, one or two of the four balloons 41 of the lower package 42 are inflated in accordance with the tilting direction of the joystick 53a. Then, the balloon 41 is quickly deflated by sucking the air in the balloon 41. Therefore, the responsiveness to the operation with the joystick 53a can be improved.

A X-ray equipment
10 sleeper
20 units
40 Expansion body
41 balloon
41a Front seat
41b Rear seat
42 Lower package
42a Top sheet
42b Bottom sheet
42c Outer suture
42d Unstitched part
42e Transverse suture
42f Longitudinal suture
43 Upper package
43a Cover sheet
43b Suture
43d Unstitched upper part
51 Compressor
52 Control unit
53 Control panel
53a Joystick
53b First switch
53c Second button
54 Air pipe
55 Signal line

Claims (3)

For X-ray imaging used to compress the abdomen by placing it on the epigastric part of a subject who is prone on the bed when performing X-ray imaging of the stomach with an X-ray imaging apparatus equipped with a tiltable bed In assistive devices,
Compression means that expands when fluid is fed, and fluid feeding means that feeds the fluid to the compression means,
The compression means is
A balloon inflated by the inflow of the fluid;
A package containing the balloon,
The package is
A lower package in which the four balloons are arranged in a grid of 2 rows and 2 columns;
An auxiliary tool for X-ray imaging, comprising an upper package on the upper surface side of the lower package and having the balloon positioned at the center of the four balloons.   The auxiliary tool for X-ray imaging according to claim 1, wherein a balloon disposed in the upper package has a larger volume than a balloon disposed in the lower package.   The part of the balloon arrange | positioned in the said upper side packaging body in the contracted state of each balloon has overlapped with the center of the balloon arrange | positioned in the said lower side packaging body up and down. X-ray imaging aids.