JPH0687855B2 - Examinee fixed band moving device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a subject fixed band moving apparatus used for an X-ray diagnostic apparatus or the like.

[Technical Background of the Invention and its Problems] In X-ray inspection and X-ray treatment in an X-ray diagnostic apparatus,
In order to secure the safety of the subject, the subject is fixed to the top plate using a subject fixing band.

A conventional example of such a subject fixed band will be described with reference to FIG.

Conventionally, as shown in the same figure, a plurality of bands 2 and 2 having adhesive parts formed by velvet fasteners or the like at both ends are wound around a subject M lying on a top plate 1 and the adhesive parts are adhered to each other. The subject M was fixed on the top plate 1 by sticking the respective parts on top of each other.

However, in the fixing method using such bands 2 and 2, there is a problem that each band 2 and 2 has to be taken out from the storage place one by one and wound around the subject M, and the operation is complicated. It was

Further, since an attachment such as a fluorescent picture tube is usually arranged near the back surface of the top plate 1, is it difficult to insert the bands 2, 2 into the gap between the attachment and the top plate 1? Or, there is a problem that it cannot be carried out quickly and it is inefficient.

Furthermore, since the top plate 1 usually has a width of about several tens of centimeters, when the band 2 is moved in the longitudinal direction of the top plate 1, the band 2 often crosses the top plate 1 at a slant. Top plate 1
It is extremely inconvenient if it is fixed to.

[Object of the Invention] The present invention has been made in view of the above-mentioned article conditions, and can easily and quickly fix a desired site of a subject to a top plate, and improve the efficiency of the fixing work. An object of the present invention is to provide a subject fixed band moving device.

[Summary of the Invention] In order to achieve the above object, the present invention provides a subject fixed band moving device including a subject fixing band for fixing a subject lying down on a table, wherein both edges of the back of the table are provided. A pair of band holding members that are arranged to face each other in the vicinity and that holds the subject fixing band, and a pair of band holding members that hold the pair of band holding members so as to be movable along the top plate longitudinal direction. It is characterized in that it has a moving mechanism in which the other moves in the same direction as the moving direction of the other one in conjunction with the movement of the one.

Embodiment of the Invention A first embodiment of the subject fixed band moving apparatus of the present invention will be described below with reference to FIG. The figure shows the back surface 1a of the top plate 1.
Shows the state of.

The band manual means 3 is provided on the back surface 1a. The band moving means 3 includes pulleys 4a and 5c rotatably attached to one end side of the top plate 1, and pulleys 4b, 4c, 5a and 5b rotatably attached to the other end side.
And the first stretched movably by the pulleys 4a, 4b, 4c
One of the first cord 6 extended from the pulley 4a in the longitudinal direction of the top plate 1 and the second cord 7 movably stretched by the pulleys 5a, 5b, 5c. A first slide piece 8 which is a slide portion arranged between the end portion 6a of the above and the one end portion 7a of the second cord body 7 which is further extended in the longitudinal direction of the top plate 1 from the pulley 5a, Between the pulley 5c and the pulley 4c, and at a position corresponding to the first slide piece 8 described below, an adjusting means 10 described later.
The second slide piece 9 which is a slide portion supported and arranged by the second slide piece 9 and the moving position of the second slide piece 9 provided in the vicinity of the second slide piece 9 with respect to the first slide piece 8 are adjusted. And adjusting means 10 for adjusting.

Then, the first slide piece 8 and the second slide piece 9
Have the same length and each end has a ring 8
a, 8b and wheels 9a, 9b are formed. The wheel 8a is fitted with the wheel formed at the end 6a of the first string body 6, and the wheel 8b is provided with the second string body 7 A ring formed on the end 7a is fitted.

The adjusting means 10 inserts the second string 7 through the pulley 5c into the ring 9a of the second slide piece 9, and then folds the second string 7 between the pulley 5c and the ring 9a. After being inserted into the auxiliary wheel 11 provided in 7 itself, the other end 7b of the second cord 7 is made to face the vicinity of the second slide piece 9, and
The ring formed on one end 12a of the third string 12 is the second
After being fitted to the ring 9b of the slide piece 9 of this, the third string 12 is inserted into the auxiliary wheel 13 fitted to the ring formed at the other end 6b of the first string 6 A knot is formed by connecting the other end 12b to the end 7b of the second cord body 7.

With the configuration of the band moving means 3 as described above, the first,
The second strings 6 and 7 and the third string 12 are arranged on the back surface 1a of the top plate 1 while maintaining an appropriate tension, and the first and second slide pieces 8 and 9 are formed on the top plate 1. It can reciprocate along the longitudinal direction and in parallel.

A band 2 for fixing the subject M lying on the top plate 1 is fixed to the surface of the first and second slide pieces 8 and 9 on the top plate 1 side, and as a result, the band 2 is fixed to the top. The first and second slide pieces are arranged in a direction orthogonal to the longitudinal direction of the plate 1.
It is possible to move with 8,9.

After forming the knot that constitutes the adjusting means 10, the loop 9
a, the cord body passing between the auxiliary wheel 11 and the adjusting means 10 is fixed by the insulocks IL ₁ and IL ₂ , and the third cord body 12 folded back by the wheel 13 is fixed by the insurock IL ₃ at the positions shown in the drawings. However, the shift of the band moving means 3 is prevented.

In the embodiment shown in FIG. 1, for convenience of explanation, one band 2 is arranged on the back surface 1a of the top plate 1 so as to be reciprocally movable. Needless to say, the belts are arranged.

Further, in the present embodiment, as the means for fixing the band 2 and the first and second slide pieces 8 and 9 to each other, sewing, adhesion or the like can be mentioned. In addition, the band 2 is provided with the first and second bands in advance.
With the slide pieces 8 and 9 of this fixed, this is the back of the top plate 1
After the first and second slide pieces are placed at the predetermined positions of a.
The first and second cord bodies 6 and 7 and the third cord body 12 may be attached in the state described in 8 and 9.

Next, the operation of the subject fixed band moving device configured as described above will be described.

The subject M is laid down with the tabletop 1 in a horizontal position, and the band 2 is moved in the longitudinal direction of the tabletop 1, that is, the body axis direction of the subject M. At this time, the first and second slide pieces 8 and 9 which are integrated with the band 2 are moved by the action of the pulleys 4a, 4b, 4c, 5a, 5b and 5c. 7 and the adjusting means 10 are interlocked and move in the same direction. Therefore, the band 2 can be easily and quickly moved to a desired site of the subject M.

In addition, the band 2 is supported by the first and second cords 6 and 7 which are maintained at an appropriate tension on the back surface 1a of the top plate 1 and comes into contact with or close to the back surface 1a. Even if 1 is in the horizontal position, the central portion of the band 2 on the back surface 1a does not hang downward, and therefore the top plate 1
Even if an attachment is present near the back surface 1a of the above, the band 2 does not contact the attachment.

If the band 2 is not orthogonal to the top plate 1 and is in an oblique crossing state, the knot between the end portions 7b and 12b of the adjusting means 10 is moved in one of the longitudinal directions of the top plate 1, After that, the cords are fixed to each other with Insulock IL ₁ , IL ₂ and IL ₃ . When the knot is moved upward in FIG. 1, the third string 12 is pulled and a force is exerted on the second slide piece 9 toward the pulley 4c, and at the same time, the second string 7 is moved to the second position. Auxiliary wheel 11 and wheel 9a corresponding to the amount of movement of the slide piece 9 of 2.
Since it slides inside, the band 2 also moves to the pulley 4c side together with the second slide piece 9.

On the other hand, when the knot is moved downward in FIG. 1, the second string 7 slides in the auxiliary wheel 11 and the wheel 9a to move the second string.
The pulling force of the slide piece 9 of the above acts, and at the same time, the third piece
The cord 12 slides in the auxiliary wheel 13, and as a result, the band 2 moves to the pulley 5c side together with the second slide piece 9. And three insulin locks IL ₁ , IL ₂ and I
Secure with L ₃ as shown.

By moving the knot in any one of the longitudinal directions of the top plate 1 in this manner, only the portion of the band 2 fixed to the second slide piece 9 can be moved, and the top of the band 2 can be moved. It is possible to adjust the crossing angle with respect to the plate 1 so that the plate 1 is always arranged orthogonally.

Further, in this case, the end 7b side of the cord 7 is provided with the wheel 9a and the auxiliary wheel 11
Has twice as much force as it pulls to fulfill the action of the pulley,
Adjustment with a small force is possible.

FIG. 2 shows a second embodiment of the present invention in which parts having the same functions as those of the device shown in FIG.

This device differs from that shown in FIG. 1 in that the adjusting means 10
Instead of using the third string 12 of, the end 6b of the first string 6
The side has the same structure as the side of the end 7b of the second cord 7. That is, the first cord 6 is inserted into the ring 9b of the second slide piece 9 through the pulley 4c and then folded back to be provided on the first cord 6 between the pulley 4c and the ring 9b. Auxiliary wheel 14
After being inserted in the end, the end 6b is tied to the end 7b of the second cord 7 to form a knot.

If you move the knot also with this device, the first and second strings
Since either one of 6 and 7 will be pulled and the other will slacken, the same action as the device shown in FIG. 1 can be exerted.

Further, in this case, since the cords 6 and 7 side and the wheels 9a and 11, 9b and 14 respectively function as pulleys, the adjustment operation can be further simplified as compared with the device of FIG. In this case, since the cord is folded back at four places, it is fixed by _four insulocks IL ₁ , IL ₂ , IL ₃ and IL ₄ as shown in the figure.

FIG. 3 shows a third embodiment of the present invention in which parts having the same functions as those of the apparatus shown in FIG.

This device differs from that shown in FIG. 1 in that the adjusting means 10
The end portion 7b side of the second cord body 7 has the same structure as the end portion 6b side of the first cord body 6. That is, the ring formed on one end 16a of the fourth string 16 is fitted to the ring 9a of the second slide piece 9, and the fourth string 16 is attached to the ring 9a of the second string 7. A knot is formed by inserting the auxiliary wheel 15 fitted into the wheel formed on the other end 7b and then tying the other end 16b to the end 12b of the third cord 12. .

Also with this device, if the knot is moved, the third and fourth cords 12 and 16 slide on the auxiliary wheels 13.15, respectively, and only the second slide piece 9 is moved. Therefore, the device shown in FIG. The same action as can be exerted. However, in this case, unlike the apparatus shown in FIG. 1 or 2, since there is no pulley structure with two wheels, the pulling force on the end portion of the cord body becomes somewhat heavy. In this case, since the cord is folded back in two places, it is fixed by _two insulocks IL ₁ and IL ₂ as shown in the figure.

In each of the embodiments described above, the first and second cords 6,
No mention is made of means for tensioning the 7th, 3rd and 4th cords 12 and 16, but considering that each cord expands and contracts due to external conditions such as weather, humidity and temperature, It is necessary to take measures to correct the tension imbalance due to this expansion and contraction. As such means, for example, as shown in FIG. 4 (a), a part of the first string 6 is cut to form rings 6c and 6d at both cut portions, and a spring is provided between the rings 6c and 6d. A non-stretchable auxiliary band that stretches 17 and restricts the expansion of this spring 17 to a fixed length.
A loosening prevention mechanism in which 18 is stretched between the wheels 6c and 6d, and as shown in FIG.
A tension for slidingly contacting a pair of pulleys 19a, 19b separately provided in 1a, and for imparting a tension to the second string 7 by a pulley 21 pulled in a specific direction by a spring 20 between the pulleys 19a, 19b. An application mechanism can be mentioned. Further, although not shown, a ratchet may be used to absorb the slack of the cord body by the amount of extension.
The slack preventing mechanism and the tension applying mechanism can be provided at appropriate positions other than those described above.

Further, in the above-mentioned embodiment, the fixing of the band moving means 3 with the insulock is performed every time the cord is folded, but all the folded cords are provided at one place by a single insulock. You may fix it. Furthermore,
The fixed member is not limited to Insulok, but any member can be used as long as it can be fixed.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist thereof.

For example, if the band is made of a member that does not expand and contract in the above-described embodiment, it is not absolutely necessary to use the slide piece, and in this case, the band is fixed by directly fixing the band to the cord body. A part of the can be used also as a slide part.

Further, in addition to connecting the string body and the slide piece by using a ring, it can be also carried out by directly fixing the end portion of the string body to the slide piece by means such as sewing.

[Effect of the Invention] According to the present invention described in detail above, the band can be moved to any position in the longitudinal direction of the top plate, and therefore, a desired portion of the subject can be easily and quickly moved with respect to the top plate. It is possible to provide a subject fixed band moving device that can be fixed to the subject and can improve the efficiency of the fixing work.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is a plan view showing a second embodiment, FIG. 3 is a plan view showing a third embodiment, and FIG. 4) is a schematic plan view showing a loosening prevention mechanism, FIG. 4 (b) is a schematic plan view showing a tension applying mechanism, and FIG. 5 is a perspective view showing an example of use of a conventional subject fixing band. 1 ... top plate, 2 ... band, 3 ... band moving means, 8
...... First slide piece, 9 ...... Second slide piece, 10 ...
… Means of adjustment.

Claims (2)

[Claims] 1. A subject fixed band moving device comprising a subject fixed band for fixing a subject lying down on a tabletop,
A pair of band holding members, which are arranged facing each other in the vicinity of both edges of the back surface of the top plate and hold the subject fixing band, and movably holding the pair of band holding members along the top plate longitudinal direction, A subject fixed band moving device, comprising: a moving mechanism configured so that, in association with the movement of one of the band holding members, the other moves in the same direction as the moving direction of the other. 2. The transmission mechanism comprising a plurality of pulleys rotatably provided at respective parts on the back surface of the top plate, and a plurality of pulleys stretched over the plurality of pulleys, the band holding members being fixed to each other. The subject fixed band moving device according to claim 1, further comprising a cord.