JP2011125371A - Mobile x-ray equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce burdens on an operator in securing the visual field when mobile X-ray equipment is moved. <P>SOLUTION: The mobile X-ray equipment includes a cart 6 including front wheels 2 and drive wheels 4; a support 8 erected on the cart 6; an arm 10 attached to the support 8; an X-ray source 12 supported to the arm 10; and a casing 16 in which an X-ray control device 14 for controlling the X-ray source 12 is housed and which is mounted on the cart 6. The cart 6 has a handle 36 composed of a support part 34 extended from the cart 6 or casing 16 and a grip part 32 for towing the cart 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile X-ray imaging apparatus that performs X-ray imaging of a patient by moving to a hospital room or the like.

  The X-ray imaging apparatus obtains an X-ray signal of a subject by irradiating the subject with X-rays and detecting transmitted X-rays with an X-ray detector. Then, the transmission X-ray image is displayed on the display unit by processing the X-ray signal in the image processing unit. In general X-ray imaging apparatuses, there is a system in which an X-ray detector is combined with a supine imaging table. In an X-ray examination room, a patient is placed on a supine imaging table and a movable support provided on the ceiling. The X-ray tube is suspended by using the X-ray tube, and the operation unit moves and rotates the X-ray tube to an appropriate imaging position with respect to the supine imaging table.

  However, some hospitalized patients are unable to go to the X-ray laboratory for examination because of a serious medical condition. For the purpose of performing such an X-ray examination of a patient, for example, there is a mobile X-ray imaging apparatus for in-hospital rounds as disclosed in Patent Document 1. A mobile X-ray imaging apparatus is an apparatus that mounts an X-ray imaging apparatus on a carriage and moves from a storage location to a patient's room to perform X-ray imaging. This allows the patient to have an examination in his / her room.

JP 2008-79908 A

  A general mobile X-ray imaging apparatus such as Patent Document 1 is capable of moving up and down on a carriage provided with wheels and a column provided upright at the front in the traveling direction of the carriage and rotating around an axis. A movable arm, an X-ray source supported by the arm, an X-ray control device for controlling the X-ray source, and a housing placed at the rear of the traveling direction of the carriage, At the rear part of the carriage, a gate-shaped handle composed of a support part and a grip part extended from the housing is provided so as to be movable by pushing the carriage.

  Since the X-ray source is approximately 40 kg, it is desirable to position the X-ray source at the top of the casing when the apparatus is moved from the viewpoint of weight balance and from the viewpoint of not obstructing traffic. For this reason, the operator pushes and moves the handle at the rear of the carriage with the X-ray source and the arm supporting the X-ray source positioned at the upper part of the housing. At the time of movement, the arm is lowered, but the housing is obstructed and the X-ray source cannot be lowered sufficiently.

  At the time of examination, an X-ray detector is placed between the patient and the bed while the patient is sleeping on the bed. Next, the arm is raised and the X-ray source is raised. The examination is started by rotating the arm around the support axis, placing the X-ray source on top of the patient, and raising and lowering the arm to adjust the vertical position of the X-ray source. In addition, a support | pillar is comprised so that an arm may be fixed and a support | pillar itself may rotate, or a support | pillar is fixed to a trolley | bogie, and the connection part of an arm and a support | pillar slides and an arm rotates. Yes.

  As described above, when the apparatus is moved, the X-ray source cannot be lowered sufficiently, so that the operator's front view is blocked by the arm and support column that support the X-ray source. Therefore, in order to avoid contact between the front part of the carriage, which is a blind spot, an obstacle, and a passerby, the operator needs to stop the movement and secure a field of view, which is a burden at the time of movement.

  The problem to be solved by the present invention is to reduce the burden of ensuring the visibility of the operator when moving the mobile X-ray imaging apparatus.

  In order to solve the above-mentioned problems, a mobile X-ray imaging apparatus of the present invention includes a carriage provided with wheels, a support column provided upright on the carriage, an arm provided on the support column, and an arm on the arm. In a mobile X-ray imaging apparatus comprising a supported X-ray source and a housing mounted on a carriage that houses an X-ray control device that controls the X-ray source, the carriage may include a carriage or a housing. It comprises a support portion and a grip portion extended from the body, and is provided with a handle for pulling the carriage.

  According to the present invention, the operator can enter the space between the grip portion of the handle and the carriage and pull the X-ray imaging apparatus. For this reason, it is not necessary to stop the movement for securing the field of view, and the burden on the movement of the operator is reduced. In addition, movement between hospital rooms in the round trip becomes smooth, leading to a reduction in travel time. The shape of the handle is preferably a shape that can be easily entered by the operator, and includes a gate shape. Further, for example, two support parts and a grip part integrally formed in an L-shape may be used as a handle, or the support part may be formed in a rod shape so that the end part is gripped and pulled. Good. Furthermore, if the support portion of the handle can be expanded and contracted, the handle will not hinder passage when stopped. In addition, the handle is attached to the housing or the carriage, and it is preferable that the both ends of the carriage, the front surface, the upper surface, the both sides of the housing, and the base end of the support portion of the handle are connected to the front surface.

  In this case, it is also possible to provide a second handle including a support portion and a grip portion extended from the cart or the casing, and push the cart by pressing the grip portion of the second handle.

  The method of pulling and moving the carriage is effective when the vehicle travels in a straight line such as a corridor. However, since there are many obstacles in the hospital room and fine adjustment of the arrangement of the apparatus is necessary at the time of examination, it is preferable that the operator can check the entire apparatus when moving in the hospital room. Therefore, it is desirable to provide a second handle that can be moved by pushing the carriage, to move the carriage between the hospital rooms, and to push the carriage to move in the hospital room. The second handle has a gate shape like the above-mentioned handle, or the support portion and the grip portion are integrally formed in an L shape, and the support portion is formed in a rod shape. For example, the end portion can be grasped and pushed as a handle. The attachment position of the handle is a housing or a cart, and it is preferable that the base end of the support portion of the handle is connected to both side surfaces, rear surface, top surface, both side surfaces, and rear surface of the cart.

  Moreover, a handle | steering-wheel can also be comprised so that attachment or detachment is provided in the attachment / detachment part provided in the front part and rear part of a trolley | bogie. Thus, the handle can be attached to the front part when the carriage is pulled, and the handle can be attached to the rear part when the carriage is pushed. The position of the attaching / detaching portion is preferably the same as the attaching position of the handle described above.

  Further, the base end of the support portion of the handle may be connected to both side surfaces of the housing or the carriage, and the support portion of the handle may be provided to be rotatable in parallel with both side surfaces around the base end. Good. Thereby, the handle can be rotated to the front when the cart is towed, and the handle can be rotated to the rear when the cart is pushed.

  The mobile X-ray imaging apparatus detects a position of a motor that drives a wheel of the carriage, a carriage control device that controls the motor according to a force applied to the steering wheel and a traveling mode, and a position of a support portion of the steering wheel. A sensor for detecting the position of the steering wheel, and the cart control device sets the running mode to the high speed mode when the handle is arranged at the front of the cart, and the running mode when the handle is arranged at the rear of the cart. Can be configured to be set to low speed mode.

  Furthermore, a motor for driving the wheels of the carriage, a carriage control device for controlling the motor according to the force applied to the handle and the traveling mode, and a sensor for detecting the position of the handle by detecting the force applied to the handle. The cart control device sets the driving mode to the high speed mode when the handle to which force is applied is the front part of the cart, and sets the driving mode to the low speed mode when the handle to which force is applied is the rear part of the cart. It can also be configured to be set.

  Since the mobile X-ray imaging apparatus is heavy, the motor is driven to increase the speed according to the force applied to the handle and the traveling mode. There are usually several types of travel modes, and the output speed is set according to the force. As described above, since the movement of the mobile X-ray imaging apparatus is mainly divided into movement between hospital rooms and movement within the hospital room, it is preferable to set the traveling mode according to each movement. For example, movement between hospital rooms is often performed in a straight line such as a corridor in a hospital, so a high-speed mode capable of increasing the speed is preferable. On the other hand, when moving in a hospital room, the low-speed mode is preferable because it can suppress the speed because there are many obstacles and fine adjustment is required at the time of examination. Conventionally, the driving mode has been manually switched by the operator. However, according to the present invention, the high-speed mode is set when the front handle of the carriage is used, and the low-speed mode is set when the rear handle of the carriage is used, thereby saving the operator from switching the driving mode and eliminating setting errors. be able to.

  According to the present invention, it is possible to reduce the burden of ensuring the visibility of the operator when moving the mobile X-ray imaging apparatus.

It is a side view of Example 1 of the mobile X-ray imaging apparatus of the present invention. It is a top view of Example 1 of the movable X-ray imaging apparatus of the present invention. It is a side view of Example 2 of the mobile X-ray imaging apparatus of the present invention. It is a side view of Example 3 of the mobile X-ray imaging apparatus of the present invention. It is a top view of Example 3 of the mobile X-ray imaging apparatus of the present invention.

  Hereinafter, Embodiment 1 of the mobile X-ray imaging apparatus will be described with reference to the drawings. As shown in FIGS. 1 and 2, the mobile X-ray imaging apparatus of this embodiment includes a plurality (two in this embodiment) of front wheels 2 and a plurality (two in this embodiment) of driving wheels 4. Supported by a support arm 10, a support arm 10 that can be moved up and down on a support column 8 that is erected on the front part of the traveling direction of the carriage 6, and that can be rotated around an axis. The X-ray source 12 and the X-ray control device 14 for controlling the X-ray source 12 are housed, and the casing 16 placed on the rear part in the traveling direction of the carriage 6 and the rear part of the carriage 6 from the casing 16. A gate-shaped handle 22 including an extended support portion 18 and a grip portion 20 is provided, and is configured to push the carriage 6 and push the carriage 6 to move.

  A traveling drive mechanism motor is attached to the drive wheel 4 and is rotated by a handle operation described later. As a result, the carriage 6 can move in the direction of arrow A. In the present embodiment, the front wheel 2 side is the front of the carriage 6.

  The cart 6 includes a travel drive mechanism motor, and a cart control device 23 that controls the motor according to the force applied to the handle 22 (the amount of movement of the handle gripping portion 20) and the travel mode. The traveling mode has speeds set in accordance with the force applied to the steering wheel 22, and in this embodiment, there are two types, a high speed mode and a low speed mode. The cart controller 23 outputs a signal from the handle 22 and a signal corresponding to the travel mode set at that time to the travel drive mechanism motor. For example, even if the force applied to the handle 22 is the same in the high speed mode and the low speed mode, the output signal is small in the low speed mode. The travel drive mechanism motor drives the drive wheels 4 based on the output signal. A battery 24 is stored in the internal space of the carriage 6.

  The grip portion 20 of the handle 22 has a cylindrical shape and is formed across the two support portions 18. Further, the grip 20 is moved in the direction of arrow A by the operator 1. The base end of the support portion 18 is connected to the upper rear surface of the housing 16. The support unit 18 includes a sensor that detects a force (movement amount) in the front-rear direction applied by the operator 1 to the handle 22, and a signal corresponding to the detected value is built in the support unit 18 and the housing 16. The data is sent to the carriage control device 23 via a communication line.

  The support arm 10 is fixed to the support column 8 so as not to move in the lateral direction, and the support arm 10 rotates about the support column 8 by the rotation of the support column 8 itself. Moreover, the support | pillar 8 is provided with the rail for the support arm 10 to raise / lower. In addition, the support | pillar 8 is fixed to the trolley | bogie 6, and it can also comprise so that the connection part of the support arm 10 and the support | pillar 8 may slide, and the support arm 10 may rotate.

  The support arm 10 can expand and contract in the direction of arrow B, the X-ray source 12 is attached to the tip, and the collimator 26 is attached to the lower part of the X-ray source 12. The combined body of the support arm 10, the X-ray source 12, and the collimator 26 is balanced by a counter balance mechanism provided in the support column 8 so that it can be manually moved in the vertical direction.

  An operation panel 28 is disposed on the upper surface of the rear portion of the housing 16. The X-ray control device 14 supplies tube voltage and tube current to the X-ray source 12 and performs on / off control of X-ray radiation. The operation panel 28 includes an operation device for setting X-ray imaging conditions (tube voltage, tube current, imaging time), an X-ray imaging push button switch, an X-ray irradiation field setting operation device, a travel mode setting button switch, and the like. ing. A lock mechanism 30 for fixing the position of the X-ray source 12 when the mobile X-ray apparatus is traveling is provided on the upper surface of the front portion of the housing 16.

  Here, the configuration and operation that characterize the present embodiment will be described. In the mobile X-ray imaging apparatus of the present embodiment, a portal handle 36 including a support part 34 and a grip part 32 extended from the housing 16 is provided at the front part of the carriage 6, and the grip part 32 is pushed. The cart 6 is provided so as to be capable of being pulled. The configuration of the handle 36 is basically the same as that of the handle 22, but the support portion 34 of the handle 36 is sufficiently long so that the operator 1 can put it between the grip portion 32 and the carriage 6. Further, the handle 36 is attached to the upper portion of the front surface of the housing 16.

  Further, the mobile X-ray imaging apparatus includes a sensor 38 that detects a force applied to the handles 22 and 36 to detect the position of the handle, and the cart control device 23 travels when a force is applied to the handle 36. The mode is set to a high speed mode, and when a force is applied to the handle 22, the traveling mode is set to a low speed mode.

  The sensor 38 takes in output signals from the sensors of the support portions 18 and 34 of the handles 22 and 36 described above, and determines whether the signal is from the handle 22 or from the handle 36. The cart controller 23 automatically sets the travel mode to the high speed mode when the signal is from the handle 36, and automatically sets the travel mode to the low speed mode when force is applied to the handle 22.

  As described above, according to the present embodiment, the operator 1 can enter the space between the gripping portion 32 of the handle 36 and the carriage 6 and pull the X-ray imaging apparatus, so that the front view is always ensured. For this reason, it is not necessary to stop the movement to secure the field of view, and the burden on the operator 1 when moving is reduced. In addition, movement between hospital rooms in the round trip becomes smooth, leading to a reduction in travel time.

  In addition, since the second handle 22 that can be moved by pushing the cart 6 is provided, the cart is towed in the movement between the hospital rooms, such as a corridor, where there are many straight runs, there are many obstacles. When moving in a hospital room that needs to be adjusted, it can be moved by pushing the carriage.

  Furthermore, the operator 1 switches the traveling mode because the high speed mode is set when the handle 36 used for movement between the patient rooms is used, and the low speed mode is set when the handle 22 used for movement in the patient room is used. This saves time and eliminates setting errors.

  As described above, the first embodiment has been described, but the present invention is not limited thereto, and can be applied by appropriately changing the configuration. For example, the shape of the handles 22 and 36 may be two handles formed integrally with a support part and a grip part as an L-shaped handle, or the support part is formed in a rod shape and the end part is gripped as a handle. You may make it tow.

  Further, the support portion of the handle 36 may be configured to be extendable and contractable by combining a plurality of cylinders having different diameters so that the diameter is temporarily reduced. If it can be expanded and contracted, the handle 36 does not obstruct the passage when stopped.

  The attachment positions of the handles 22 and 36 can be on both side surfaces and the top surface of the carriage 6, and can also be on both side surfaces and the top surface of the housing 16.

  Next, Embodiment 2 will be described with reference to FIG. The difference from the first embodiment is that there is one handle, and the handle 40 is detachably provided on an attachment / detachment portion 42 provided at the front portion of the carriage 6 and an attachment / detachment portion 44 provided at the rear portion. is there.

  The attachment / detachment portion 42 is provided with an attachment / detachment hole on the front surface of the housing 16, and the attachment / detachment portion 44 is provided with an attachment / detachment hole on the rear surface, and each attachment / detachment hole is fitted to the base end of the support portion 46 of the handle 40. It is like that. Note that the communication line through which the signal output from the handle described in the first embodiment passes is built in the attachment / detachment hole, and is connected by attaching the handle 40. Further, the support portion 46 of the handle 40 is configured to be able to expand and contract by combining a plurality of cylinders having different diameters so that the diameter is temporarily reduced.

  As for the position of the handle during traveling, when moving between hospital rooms, the base end is fitted and attached to the detachable portion 42 with the support portion 46 of the handle 40 extended, and the carriage 6 is pulled. At the time of moving inside the hospital room, the base end is fitted and attached to the detachable portion 44 with the support portion 46 of the handle 40 being contracted, and the carriage 6 is pushed to move. Note that the switching of the running mode is automatically selected as in the first embodiment.

  As described above, according to this embodiment, the handle 40 can be attached to the front part when the carriage 6 is pulled, and the handle 40 can be attached to the rear part when the carriage 6 is pushed.

  In this embodiment, the driving mode can be switched depending on the position of the steering wheel. For example, position sensors 43 and 45 that detect the position of the support portion 46 of the handle 40 to detect the position of the handle 40 are provided, and the cart control device 23 travels when the handle 40 is disposed at the front portion of the cart 6. The mode is set to the high speed mode, and the traveling mode is set to the low speed mode when the handle 40 is disposed at the rear portion of the carriage 6.

  The position sensors 43 and 45 are provided, for example, in the vicinity of the attaching / detaching portions 42 and 44 to detect whether the support portion 46 of the handle 40 is fitted, and the cart control device 23 takes in the detection signal, and the handle 40 is attached to the attaching / detaching portion. Whether it is attached to 42 or attached to the detachable portion 44 is determined. The carriage control device 23 automatically sets the traveling mode to the high speed mode when the handle 40 is attached to the attaching / detaching portion 42, and automatically sets the traveling mode to the low speed mode when attached to the attaching / detaching portion 44. .

  Next, Embodiment 3 will be described with reference to FIGS. The difference from the first and second embodiments is that the base end of the support portion 52 of the handle 50 is connected to both side surfaces of the housing 16, and the support portion 52 of the handle 50 is parallel to both side surfaces of the housing 16 centering on the base end. It is the point which is provided so that rotation is possible.

  A rotation shaft 51 is fixed to the base end of the support portion 52 of the handle 50, and holes for inserting the rotation shaft 51 are provided on both side surfaces of the housing 16. The handle 50 rotates about the inserted rotation shaft 51.

  When moving between hospital rooms, the handle 50 is rotated and fixed to the front part of the carriage 6 and the carriage 6 is pulled. When moving inside the hospital room, the handle 50 is rotated and fixed to the rear part of the carriage 6 and the carriage 6 is pushed. The handle 50 can be fixed in such a manner that the base end of the support portion 52 of the handle 50 can be rotated only by a certain angle, for example, 180 °.

  In addition, since the handle 50 moves so as to straddle the support column 8 when the handle 50 is rotated, as shown in FIG. 5, the support portion 52 and the grip portion 54 are formed in an L shape. Two of them are referred to as a handle 50. In the present embodiment, similarly to the first embodiment, the traveling mode can be switched depending on the position of the handle to be used. Further, similarly to the second embodiment, the traveling mode can be switched depending on the position of the handle. You can also. In this case, the position sensors 43 and 45 may be attached to the surface of the housing 16, or the position of the handle 50 may be detected by detecting the rotation angle of the rotation shaft 51.

  As described above, according to this embodiment, the handle 50 can be rotated to the front when the cart 6 is towed, and the handle 50 can be rotated to the rear when the cart 6 is pushed. The shape of the handle 50 can be configured in a gate shape as in the first embodiment. However, since the handle 50 moves so as to cross the support column 8, the length of the handle 50 is not less than the height of the support column 8 at the time of movement. It is necessary to form the support portion 52.

2 Front wheel 4 Drive wheel 6 Carriage 8 Strut 10 Support arm 12 X-ray source 14 X-ray control device 16 Housing 22 Handle 36 Handle 38 Sensor 42, 44 Detachable part 43, 45 Position sensor

Claims (6)

A carriage provided with wheels, a column provided upright on the carriage, an arm provided on the column, an X-ray source supported by the arm, and an X-ray control for controlling the X-ray source In a mobile X-ray imaging apparatus in which an apparatus is housed and a housing mounted on the carriage,
A mobile X-ray imaging apparatus, wherein the carriage is provided with a handle for pulling the carriage, comprising a support part and a grip part extended from the carriage or the casing.   Further, the cart is provided with a second handle comprising a support portion and a grip portion extended from the cart or the casing, and the cart is pushed by pushing the grip portion of the second handle. The mobile X-ray imaging apparatus according to claim 1.   The mobile X-ray imaging apparatus according to claim 1, wherein the handle is detachably provided at an attachment / detachment portion provided at a front portion and a rear portion of the carriage. A cart provided with wheels, a support provided on the cart, an arm provided on the support, an X-ray source supported by the arm, and an X-ray control device for controlling the X-ray source are accommodated. And a mobile X-ray imaging apparatus comprising a housing placed on the carriage,
A handle comprising a support portion and a grip portion is provided, and a base end of the support portion of the handle is connected to both side surfaces of the housing or the carriage. A movable X-ray imaging apparatus characterized by being provided so as to be rotatable in parallel. A motor for driving the wheels of the carriage, a carriage control device for controlling the motor in accordance with a force applied to the handle and a traveling mode, and a position of the support portion of the handle to detect the position of the handle. With a sensor,
The cart control device sets the running mode to a high speed mode when the handle is arranged at the front of the cart, and sets the running mode to a low speed mode when the handle is arranged at the rear of the cart. The mobile X-ray imaging apparatus according to claim 3 or 4, wherein the mobile X-ray imaging apparatus is set. A motor for driving wheels of the carriage, a carriage control device for controlling the motor in accordance with a force applied to the handle and a traveling mode, and a sensor for detecting the position of the handle by detecting the force applied to the handle; With
The cart control device sets the traveling mode to a high-speed mode when the handle to which the force is applied is a front portion of the cart, and when the handle to which the force is applied is a rear portion of the cart, The mobile X-ray imaging apparatus according to any one of claims 2 to 4, wherein the traveling mode is set to a low speed mode.

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