JP2013132491A - Cassette holder and medical bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cassette holder and a medical bed, in which a cassette holder can be entered in and taken out of the predetermined fixing position at the lower part of the bed floor section, can be fixed in the predetermined fixing position of the lower part of the bed floor, and also can be removed out of the fixing position easily, without providing a drive mechanism.SOLUTION: When a fixed lever 21 and a rotating lever 22 provided in one side are gripped, a fixed lever 31 and a rotating lever 32 provided in the other side approach each other, contact sections 25, 35 of both stoppers 24, 34 space apart from a guide rail 15, and thus the insertion of cassette holder 1 is enabled. When the fixed lever 21 and the rotating lever 22 are released, then the fixed lever 31 and the rotating lever 32 are separated, contact sections 25, 35 come in contact with a guide rail 15 and, brake action is provided.

Description

  The present invention relates to a cassette holder that is disposed below a medical bed in parallel to the bed floor and holds a cassette that images X-rays irradiated on a patient from above, and a medical device to which the cassette holder is attached. About bed. In addition to the literal bed, the medical bed includes a stretcher, an examination table, an examination table, and the like used for X-ray imaging in a hospital or the like.

  When X-ray imaging is performed on a patient lying on a medical bed, a cassette is placed below the medical bed in parallel with the bed floor, and the patient is irradiated with X-rays from above the bed and transmitted through the patient. The detected X-ray is detected as an image with a cassette.

  There are many medical beds with an extension function. This extension function refers to the Trendelenberg state in which the entire floor where the patient in the bed lies rotates around the center in the longitudinal direction of the floor as a fulcrum, and the head is high and the legs are high. It is a function that takes the state of reburst Renderenburg that becomes low. In this way, since the entire floor portion tilts, the cassette holder and the cassette stored therein may fall during expansion unless the cassette holder that stores the cassette is fixed to the frame that supports the floor portion. It is a danger.

  Patent Document 1 discloses a medical bed in which a cassette holder is fixed to a bed frame at a plurality of locations below the medical bed. Patent Documents 2 and 3 disclose a medical bed in which a cassette holder is inserted below the bed using a drive mechanism.

JP-A-3-77543 Japanese Translation of National Publication No. 1-503202 Japanese Utility Model Publication No. 1-130313

  However, since the medical bed disclosed in Patent Document 1 is a type in which the cassette holder is fixed to the bed frame, when the cassette is put into and taken out of the cassette holder, the patient on the bed floor needs to put in and out the cassette. It is necessary to move so as not to get in the way.

  In addition, since the medical beds disclosed in Patent Documents 2 and 3 are mounted under the floor with a cassette holder storing a cassette using a driving mechanism, the bed is heavy due to the driving mechanism. In addition, there is a problem that it becomes expensive.

  The present invention has been made in view of such a problem, and without providing a driving mechanism, the cassette holder can be taken in and out at a predetermined mounting position below the bed floor, and a predetermined position below the bed floor is provided. It is an object of the present invention to provide a cassette holder and a medical bed that can be fixed at the mounting position and can be easily detached from the mounting position.

The cassette holder according to the present invention is:
A holder body for storing a cassette in an area surrounded by walls on four sides;
Each one fixing lever installed on two parallel sides of the holder body,
A rotating lever that is installed in the holder main body corresponding to each of the fixed levers and is rotatable around a rotation axis provided in the holder main body,
Provided corresponding to each of the rotating levers, and when the rotating lever is rotated to a position far from the corresponding fixed lever, it advances outward from the holder body, and the rotating lever corresponds to the fixed lever. A stopper that moves in a direction of retracting into the holder body when rotated to a position close to
A link that moves the pair of stoppers in conjunction with each other;
A biasing member that biases the rotation lever, the stopper, or the link in a direction separating the rotation lever from the corresponding fixed lever;
It is characterized by having.

The medical bed according to the present invention is:
Two parallel guide rails provided below the bed floor;
A cassette holder inserted along the guide rail,
Have
The cassette holder is
A holder body for storing a cassette in an area surrounded by walls on four sides;
One fixing lever installed on each of two sides parallel to the guide rail of the holder body;
A rotating lever that is installed in the holder main body corresponding to each of the fixed levers and is rotatable around a rotation axis provided in the holder main body,
Provided corresponding to each of the rotating levers, when the rotating lever rotates to a position far from the corresponding fixed lever, it advances from the holder body toward the guide rail, and the rotating lever is fixed correspondingly A stopper that moves in a direction away from the guide rail when rotated to a position close to the lever;
A link that moves the pair of stoppers in conjunction with each other;
A biasing member that biases the rotation lever or the stopper in a direction separating the rotation lever from the corresponding fixed lever;
It is characterized by having.

  According to the present invention, the cassette holder is inserted below the bed floor along the guide rail while holding the pair of fixed lever and rotating lever, and then the holding state of the fixed lever and rotating lever is changed. When released, the urging member moves the rotating lever away from the fixed lever.When the rotating lever moves away from the fixed lever, the stopper moves outward from the holder body, and the stopper moves to the bed floor. The guide rail provided below is pressed. Thereby, the cassette holder is fixed to the guide rail. When replacing the cassette, hold the fixed lever and rotating lever, and rotate the rotating lever toward the fixed lever, so that the stopper moves away from the guide rail and retracts toward the holder body. Can be pulled out along the guide rail from below the floor of the bed. Therefore, the cassette holder can be arbitrarily fixed and detached at a predetermined position below the bed floor simply by providing the cassette holder with a fixing lever, a rotation lever, and a stopper.

It is a perspective view which shows the upper surface of the cassette holder which concerns on embodiment of this invention. It is a perspective view which shows the cassette holder inserted under the floor part of a medical bed. It is a figure which shows the structure of a cassette holder, (a) is a general view, (b) is a figure which expands and shows a lever. Similarly, it is a figure which shows the structure of a cassette holder, (a) is a general view, (b) is a figure which expands and shows a lever. It is a perspective view which shows the cassette holder inserted in the medical bed. It is an enlarged view of the levers 21 and 22 vicinity.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an upper surface of a cassette holder according to an embodiment of the present invention, FIG. 2 is a perspective view showing a cassette holder inserted below a floor portion of a medical bed, and FIGS. 3 and 4 are cassettes. It is a figure which shows the structure of a holder, (a) is a general view, (b) is a figure which expands and shows a lever, FIG. 5 is a perspective view which shows the cassette holder inserted in the medical bed, FIG. It is an enlarged view of 21 and 22 vicinity.

  As shown in FIG. 2, the medical bed 10 is provided with a mounting portion 12 into which the cassette holder 1 is inserted below the floor portion 11 on which the patient lies. FIG. 5 is a view showing the mounting portion 12 by lifting the floor portion 11 with respect to the bed frame 10. As shown in FIG. 5, a guide rail 15 that extends parallel to the insertion direction 6 of the cassette holder 1 is installed in the mounting portion 12. The guide rail 15 has an L-shaped cross section, is fixed to the bed frame 10 and is disposed in a pair on both sides of the bed.

  As shown in FIG. 1, the cassette holder 1 has a holder main body 2 provided with vertical walls 2a, 2b, 2c and 2d on four sides of a rectangular bottom plate, and the cassette is attached to the vertical walls 2a, 2b, 2c and 2d. It can be stored in a space enclosed. A detachable cover 3 is provided at one end of the cassette holder 1 in the longitudinal direction (rear end of the insertion direction 6), and fixing means such as a lever and a link described later are provided in the cover 3. It has been. One side surface of the cover 3 is a side 2a for fitting the cassette.

  Center marks 4 for confirming the position of the cassette holder 1 on the bed are provided on two sides parallel to the insertion direction 6 in the holder body 2 of the cassette holder 1. In addition, two rollers 5 are installed on two sides of the holder body 2 parallel to the insertion direction 6 so as to be rotatable around a rotation axis perpendicular to the insertion direction 6. While being guided by the L-shaped vertical surface of the rail 15, it rolls on the L-shaped bottom surface. Thus, the cassette holder 1 can reciprocate in the insertion direction 6 along the guide rail 15 while the roller 5 is guided by the guide rail 15 and rolls on the guide rail 15.

  As shown in FIG. 1, the holder fixing means of this embodiment is installed in the area | region where the cover 3 is arrange | positioned in the rear-end part of the insertion direction 6 in the cassette holder 1. As shown in FIG. That is, the fixing levers 21 and 31, the rotation levers 22 and 32, and the stoppers 25 and 35 are disposed outward from the holder body 2 at both ends in the width direction of the holder body 2 (both ends in the direction perpendicular to the insertion direction 6). It is arranged so as to protrude. As shown in FIGS. 3 and 4, the fixing levers 21 and 31 are fixed to the holder body 2 with their longitudinal directions perpendicular to the insertion direction 6. The rotary levers 22 and 32 are rotatably supported by rotary shafts 23 and 33 installed on the holder main body 2 with their axial directions vertical. Similarly, the stoppers 24 and 34 are rotatably supported on the rotary shafts 23 and 33, respectively. The rotary levers 22 and 32 and the stoppers 24 and 34 are fixedly attached to each other, and are integrally formed. It has a simple structure. Therefore, the rotary levers 22 and 32 and the stoppers 24 and 34 rotate simultaneously in the same direction around the rotary shafts 23 and 33. Contact portions 25, 35 are provided at the tips of the stoppers 24, 34. When the stoppers 24, 34 rotate outward, the contact portions 25, 35 come into contact with the guide rails 15, The cassette holder 1 is locked to the guide rail 15 by a frictional force between the guide rail 15 and the guide rail 15. The contact portions 25 and 35 are covered with a rubber material on the surface thereof, and increase the frictional force between the contact rails 25 and 35. Thereby, the locking force between the cassette holder 1 and the guide rail 15, that is, the braking force is improved.

  As shown in FIG. 6, in addition to the rotating lever 22 and the stopper 24, a connecting piece 26 is rotatably supported on the rotating shaft 23 of one rotating lever 22, and the connecting piece 26 includes the rotating lever 22 and the rotating lever 22. It is fixed integrally with the stopper 24 and is simultaneously rotated in the same direction. A connecting piece 36 is also fixed at the center of the other stopper 34. A connecting rod 41 is rotatably connected to the connecting pieces 26 and 36 between the distal end portion of the connecting piece 36 and the end portion of the connecting piece 26 that is separated from the rotating shaft 23. Thereby, the stopper 24 and the stopper 34 rotate in conjunction with each other. That is, when the stopper 24 rotates in the direction in which the contact portion 25 contacts the guide rail 15, the stopper 34 also rotates in the direction in which the contact portion 35 contacts the guide rail 15. When rotating in a direction away from the guide rail 15, the stopper 34 also rotates in a direction in which the contact portion 35 is separated from the guide rail 15.

  Further, as shown in FIGS. 3, 4, and 6, the compression spring 27 urges the stopper 24 in a direction of pressing the stopper 24 toward the guide rail 15. Thereby, the contact parts 25 and 35 of the stoppers 24 and 34 are always in contact with the guide rail 15.

  Next, the operation of the cassette holder and the medical bed of the present embodiment configured as described above will be described. First, as shown in FIG. 2, the cassette holder 1 storing unused cassettes is inserted into the mounting portion 12 below the floor portion 11 of the bed 10. At this time, as shown in FIG. 5, the roller 5 of the cassette holder 1 is guided by the vertical surface of the guide rail 15 having an L-shaped cross section and rolls on the bottom horizontal portion. Thereby, the cassette holder 1 is guided to the guide rail 15 and inserted to the mounting portion 12 below the floor portion 11. When inserting the cassette holder 1, the operator moves the cassette holder 1 while holding the fixed lever 21 and the rotation lever 22. Thus, by holding the fixed lever 21 and the rotating lever 22, the contact portion 25 of the stopper 24 is separated from the guide rail 15 as shown in FIG. 3. Further, the holding lever 31 and the rotating lever 32 arranged on the other side of the cassette holder 1 can also be connected via the connecting rod 41 only by grasping the fixing lever 21 and the rotating lever 22 arranged on one side of the cassette holder 1. At the same time, the contact portion 35 of the stopper 34 is separated from the guide rail 15. As described above, when the cassette holder 1 is moved, the fixed lever 21 and the rotating lever 22 are gripped to separate the contact portions 25.35 of the stoppers 24 and 34 from the guide rail 15. Of course, instead of gripping the fixed lever 21 and the rotary lever 22, the fixed lever 31 and the rotary lever 32 may be gripped.

  Then, when the cassette holder 1 is inserted to a predetermined mounting position, the grip of the fixed lever 21 and the rotation lever 22 is released. Then, as shown in FIG. 4, the biasing force of the compression spring 27 causes the stopper 24 to rotate in the direction in which the contact portion 25 comes into contact with the guide rail 15, and the other stopper 34 is also brought into the contact portion 35 by the connecting rod 41. Rotates in a direction in contact with the guide rail 15. Accordingly, the contact portions 25 and 35 of the stoppers 24 and 34 come into contact with the guide rail 15, and the contact portions 25 and 35 press the guide rail 15 by the compression spring 41. Due to this frictional force, a braking force acts on the cassette holder 1 and stops at a predetermined mounting position. Therefore, even if the bed moves or vibrates, the position of the cassette holder 1 does not change. Further, the cassette holder 1 is moved even if the entire floor portion of the bed is rotated so that the foot side is upward or the head side is upward due to the extending operation of the bed. There is no.

  In addition, by providing the guide rail 15 over almost the entire length of the floor portion 11 of the bed, the cassette holder 1 can be mounted at an arbitrary position on the floor portion 11, and X-ray imaging can be performed over the entire body of the patient. It becomes possible.

  In the above embodiment, a lever, a stopper, and the like are provided at the rear end of the cassette holder 1, but the position of these members is arbitrary, and the cassette holder 1 can be positioned at any position depending on the convenience of the bed structure. Can be provided.

1: cassette holder 2: holder body 3: cover 4: center mark 5: roller 15: guide rail 21, 31: fixed lever 22, 32: rotating lever 23, 33: rotating shaft 24, 34: stopper 25, 35: contact Part 41: connecting rod

Claims (2)

A holder body for storing a cassette in an area surrounded by walls on four sides;
Each one fixing lever installed on two parallel sides of the holder body,
A rotating lever that is installed in the holder main body corresponding to each of the fixed levers and is rotatable around a rotation axis provided in the holder main body,
Provided corresponding to each of the rotating levers, and when the rotating lever is rotated to a position far from the corresponding fixed lever, it advances outward from the holder body, and the rotating lever corresponds to the fixed lever. A stopper that moves in a direction of retracting into the holder body when rotated to a position close to
A link that moves the pair of stoppers in conjunction with each other;
A biasing member that biases the rotation lever, the stopper, or the link in a direction separating the rotation lever from the corresponding fixed lever;
A cassette holder characterized by comprising: Two parallel guide rails provided below the bed floor;
A cassette holder inserted along the guide rail,
Have
The cassette holder is
A holder body for storing a cassette in an area surrounded by walls on four sides;
One fixing lever installed on each of two sides parallel to the guide rail of the holder body;
A rotating lever that is installed in the holder main body corresponding to each of the fixed levers and is rotatable around a rotation axis provided in the holder main body,
Provided corresponding to each of the rotating levers, when the rotating lever rotates to a position far from the corresponding fixed lever, it advances from the holder body toward the guide rail, and the rotating lever is fixed correspondingly A stopper that moves in a direction away from the guide rail when rotated to a position close to the lever;
A link that moves the pair of stoppers in conjunction with each other;
A biasing member that biases the rotation lever or the stopper in a direction separating the rotation lever from the corresponding fixed lever;
A medical bed characterized by comprising:

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