JP2007117715A - Medical examination table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that in the case of a conventional heart examination or others where an ultrasonic probe is attached to an affected body part of a patient through a pushed-down section or a pulled-out section of a medical examination table from the pushed-down side, or in the case of treatment for lever cancer where the lever is pierced with a needle through which radio wave or the like is passed, an arm of the patient on the side of the pushed-down section of the table may become a hindrance to the examination or the treatment. <P>SOLUTION: This medical examination table comprises a seat 3 mounted on a base 1, a backrest 4 installed on the seat in a way that it can freely rise and fall an auxiliary backrest 7 turnably attached to a notched part 42 formed on one side of the backrest by means of locking shafts 71 that have two locking grooves 71a formed at a distance of approximately 90° from each other, and a handle 73 which is turnably attached to a bearing installed on the back face side of the auxiliary backrest, with its end being selectively engaged in one of the locking grooves. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a medical table for diagnosing and treating an organ such as a liver, wherein the auxiliary backrest of the backrest corresponding to the organ to be treated is rotated and removed from the site of the organ, and the patient is treated at the time of medical treatment It is related with the medical treatment table which attached the upper limbs table for fixing so that the hand of the said side might not interfere with the said site | part side arm.

  Conventionally, as a treatment table for organ diagnosis and treatment, a part of the treatment table corresponding to the part of the organ is rotated or removed to remove the medical device and apply it to the patient's body. For example, Japanese Laid-Open Patent Publication No. 10-248846 discloses a medical table for performing medical examinations.

That is, the invention of the above publication is formed by forming a drop portion on one side along the longitudinal direction of the medical table and a pull-out portion on the other side, and ultrasonic waves from a portion where the drop portion or the pull-out portion is dropped or pulled out. The probe can be applied to the chest and abdomen of the patient, and the back side of the patient can be raised and lowered while the patient is laid on a medical table.
Japanese Patent Laid-Open No. 10-248846

  By the way, in the case where the ultrasonic probe is applied to the affected part from the side where the drop part or the extraction part is dropped like the above-described treatment of the heart or the like, the needle is driven into the liver like medical treatment of liver cancer, When a medical treatment is performed by flowing radio waves or the like from this needle, there is a problem in that the arm of the patient located on the dropped side becomes an obstacle.

  The present invention is intended to solve the above-described problems. The object of the present invention is to perform a steering operation on the backrest so that it is parallel to the backrest and to the backside of the backrest. Since the auxiliary backrest can be fixed in a substantially vertical state, the transition to medical care or treatment and a flat bed state can be performed reliably and easily, and the patient's arm on the side where the auxiliary backrest has been dropped is placed on the chest. Supporting the upper side of the body does not interfere with various organ diagnosis and treatment, and when raising the back to wake up the patient who is lying down, the seat on which the lower limb is placed The purpose of this invention is to provide a medical examination table in which a patient in a sitting position does not shift forward by being displaced in a mountain shape at the knee kid part.

  The medical examination table according to the present invention is intended to achieve the above-described object, and the means of claim 1 includes a seat attached to the base, and a backrest attached to the seat so as to be raised and lowered. An auxiliary backrest rotatably attached by a lock shaft having two locking grooves formed at intervals of approximately 90 degrees in a notch formed on one side of the backrest, and on the back side of the auxiliary backrest A handle rotatably attached to the attached bearing and having a tip selectively engaged with the lock groove, and by operating the handle, the auxiliary backrest is placed in a position parallel to the backrest and the backrest. It is characterized in that it can be fixed at a vertical position on the back side of the droop.

  According to a second aspect of the present invention, a seat mounted on a base, a backrest mounted so as to be raised and lowered with respect to the seat, and a notch formed on one side of the backrest are flush with the backrest. An auxiliary backrest that is fixed at a position in a state of being rotated to the back side and a swing arm that is pivotally supported on the other side of the backrest and that is swingably mounted at a desired angle And an upper limb support for fixing a patient's arm attached to the tip of the swing arm by extending vertically from the swing arm.

  According to a third aspect of the present invention, in the above-described second aspect, the arm for attaching the upper limb support to the swing arm can be selectively fixed by two positions of approximately 90 degrees with respect to the swing arm. The upper limb support can be changed to a position parallel to the backrest side surface and a position protruding perpendicular to the backrest side surface.

  According to a fourth aspect of the present invention, in the above-described second aspect, the upper limb support is rotatably and fixedly attached to the arm for attaching the upper limb support to the swing arm. It is possible to prevent the patient's arm from twisting by rotating in a plane parallel to the surface in contact with the patient's back.

  According to a fourth aspect of the present invention, in the first or second aspect, when the backrest is displaced in the standing direction, the substantially central portion in the longitudinal direction of the seat is pushed up and displaced in a mountain shape in conjunction with the displacement, It is possible to prevent the patient's knee part from being pushed up and displaced forward.

  According to a fifth aspect of the present invention, in the above-described first or second aspect, the metal part of the upper body of the patient, such as the backrest or the auxiliary backrest, is made of a nonmagnetic material or a material having less magnetism. The present invention is characterized in that the influence of a magnetic field by a magnetic substance located in the vicinity of an organ such as a liver of a patient is reduced.

  As described above, according to the present invention, the auxiliary backrest can be fixed at two positions: a state parallel to the backrest and a state perpendicular to the backside of the backrest by operating the handle. Since it becomes a flat bed shape and is fixed in a state perpendicular to the back side at the time of treatment, auxiliary backrest does not get in the way when performing radiofrequency ablation treatment or the like.

  In addition, a notch is formed on one side of the backrest, and the auxiliary backrest is pivotally attached to the notch, so that surgery and examination can be performed from the back side or side of the organ using surgical instruments and examination instruments. An upper limb table supporting the patient's arm located on the auxiliary backrest side is attached to the other side, the arm does not get in the way during the diagnosis and treatment, and the upper limb table By swinging the swing arm on which the back is mounted on the side of the backrest, it can be prevented from projecting to the front surface of the backrest, so that it does not interfere with getting on and off the patient's table.

  Further, the swing arm can be fixed at a desired angular position, and the upper limb table can be freely rotated, and can be fixed at a desired angle, so that the arm that disturbs the patient can be fixed at an easy posture position. It can be fixed in either the sitting position or the supine position.

  In addition, since the seat is displaced in a mountain shape in conjunction with the standing of the backrest, the posture of the patient trying to shift forward can be maintained, and therefore the burden on the patient can be reduced even in a long-term medical treatment. Can do.

  Furthermore, by configuring the metal part of the patient's upper body, such as the backrest or auxiliary backrest, with a non-magnetic material or a material with less magnetism, the effect of the magnetic field due to the magnetic material located near the patient's liver By reducing the number, the magnetic sensor that detects the position information of the system for constructing the CT reconstructed image is not affected, and therefore the liver image obtained by the magnetic sensor is clearly displayed. It is.

  According to the present invention, the auxiliary backrest can be fixed at two positions: a state parallel to the backrest and a state perpendicular to the backside of the backrest by operating the handle.

Next, an embodiment of a medical examination table according to the present invention will be described with reference to the drawings.
1 to 5, 1 is a base, 2 is an elevating means covered with a bellows-like outer peripheral film, and 3 is attached to a support base 21 described later of the elevating means 2 via a link mechanism 6. The seat 4 is a backrest that is pivotably supported at the back of the seat 3 (left side in each drawing), and the ram side of a hydraulic cylinder 31 having one end attached to the seat 3 is attached. Therefore, when oil is supplied to the hydraulic cylinder, the backrest 4 rotates in the standing direction and becomes a chair state, and when the oil is removed, the backrest 4 rotates in the lying down direction and becomes a bed state.

  Reference numeral 32 denotes a cover that covers the hydraulic cylinder 31. In FIG. 1, reference numeral 5 denotes a foot pedal for controlling the vertical movement operation of the elevating means 2 and the extension of the hydraulic cylinder 31, and is operated by a doctor or an assistant.

  A support 21 for attaching the seat 3 via the link mechanism 6 is attached to the upper end of the elevating means 2. The link mechanism 6 is pivoted to a substantially intermediate portion of the support base 21, a front link 61 whose front end is pivotally supported in front of the support base 21, a rear link 62 whose rear end is pivotally supported rearward of the support base 21, and the support base 21. A pivot link 63 that is freely supported, a link link 41 that protrudes from the lower end of the backrest 4, and a longitudinal link 64 that connects the lower end side of the pivot link 63. Has been.

  The front link 61 and the rear link 62 are connected by engaging a shaft 61 a protruding from the rear portion of the front link 61 with a long hole 62 a opened in front of the rear link 62. The upper end of the rotation link 41 is pivotally supported in the vicinity of the elongated hole 62 a of the rear link 62.

  With this configuration, when the backrest 4 is displaced in the standing direction by the hydraulic cylinder 31, the longitudinal link 64 moves to the left in FIG. 2. Therefore, the pivot link that is pivotally supported by the longitudinal link 64. 63 rotates clockwise to push up the rear link 62. As a result, the seats 3 attached to the front link 61 and the rear link 62 are pushed up at the center to form a mountain shape.

Next, an apparatus for performing medical care and medical examination from the back side of a patient in a sitting or lying position will be described.
7 is a shaft 71b of a lock shaft 71 in which two lock grooves 71a are formed at intervals of approximately 90 degrees fixed to both ends of a notch portion 42 formed on either the left or right side of the backrest 4 (right side in the drawing). A pipe-like bearing 72 is attached to both sides of the back side of the auxiliary backrest 7 so that the auxiliary backrest is pivotally supported with respect to the bearing. The handle 73 is slidably inserted.

  The distal end of the handle 73 is formed with an acute angle and is a lock tooth 73a engaged with the lock groove 71a. The handle 73 is spring-biased by a spring 74 housed in the bearing 72 in a direction in which the lock teeth 73a are engaged with the lock groove 71a.

  When the auxiliary backrest 7 thus configured is flush with the backrest 4 as shown in the drawings, the lock teeth 73a of the handle 73 are locked by the lock groove of the lock shaft 71 shown in FIG. 6B. It is engaged with one of 71a and the flush state is maintained. If the handle 73 is pulled against the spring force of the spring 74 in this state (rightward in the figure), the lock seat 73a is detached from the current lock groove 71a, so that the auxiliary backrest 7 can be rotated. When the auxiliary backrest 7 is rotated approximately 90 degrees toward the back side of the backrest 4 to release the pulling force of the handle 73, the lock teeth 73a are engaged with the other lock grooves 71a. As a result, the auxiliary backrest 7 is fixed to the back surface side of the backrest 4 at a position of approximately 90 degrees, so that it is possible to perform medical care and medical examination using a surgical instrument or the like from the back surface side of the patient.

Next, a description will be given of an upper limb fixing means for fixing an arm, which is a hindrance during patient diagnosis and treatment, in front of the patient's chest.
The upper limb fixing means is pivoted on the side surface of the backrest 4 opposite to the side on which the auxiliary backrest 7 is attached, and is pivotably attached to the swing arm 8. The upper limb support 9 is mounted so as to be movable and fixable.

  The swing arm 8 is formed with a fixing member 81 fixed to the backrest 4, a support plate 82 swingably attached to the fixing member 81, and a number of lock grooves 83 a fixed to the fixing member 81. A lock shaft 83, a pipe 84 attached to the support plate 82, a lock rod 85 which is slidably inserted in the pipe 84 but is non-rotatably inserted, and is rotatably fitted to the upper end of the pipe 84. The rotating tube 86 is inserted and the engaging groove 86a is formed on the end face at intervals of 90 degrees, and the upper limb support 9 is attached.

  A lock tooth 85a that engages with the lock groove 83a is formed at the tip of the lock rod 85, and the tip that protrudes from the rotary tube 86 is selectively formed in the engagement groove 86a of the rotary tube 86. The lock pin 85b to be engaged is attached. A spring 87 that urges the lock teeth 85a in a direction in which the lock teeth 85a are engaged with the lock grooves 83a is fitted into the tip of the lock rod 85. In addition, 85c is a grip ball attached to the upper end of the lock rod 85.

  When the swing arm 8 configured as described above grips the grip ball 85 c and pulls it against the spring force of the spring 87, the lock teeth 85 a of the lock rod 85 are disengaged from the lock groove 83 a of the lock shaft 83, and The lock pin 85b is detached from the engagement groove 86a of the rotary tube 86. In this state, the support plate 82 can rotate with respect to the fixing member 81. Therefore, when the support plate 82 is rotated with respect to the fixing member 81 with the grip ball 85c, the lock rod 85 (pipe 84) is backrested. 4 swings on the side surface.

  When the pulling force of the gripping ball 85c is loosened at a position rotated by a desired angle, the lock rod 85 is engaged and fixed to the lock groove 82a of the lock shaft 82 by the spring force of the spring 87. The swing arm 8 can be fixed at a desired angular position on the side surface of the backrest 4.

  Further, in the state where the arm 91 is located at a position orthogonal to the side surface of the backrest 4 as shown in FIG. 1, the gripping ball 85c is pulled to remove the lock pin 85b from the engaging groove 86a of the rotating tube 86, which will be described later. When the upper limb table 95 is held and rotated 90 degrees, the side surface of the backrest 4 is flush with the side surface. That is, the arm 91 is locked and fixed at two positions.

Next, the structure of the upper limb support 9 attached to the swing arm 8 will be described.
Reference numeral 91 denotes an arm fixed to the rotary tube 86 which is rotated at an interval of about 90 degrees in the above-described swing arm 8 and is lockably attached, and a male screw portion 91a is formed at the tip. . 92 is a pipe-like stopper that is fitted to the substantially central portion of the arm 91 and is fixed by a screw 92a, and 93 is rotatably fitted to the arm 91 between the pipe-like stopper 92 and the male screw portion 91a. The rotary pipe 94 is a cap nut that is screwed into the male thread portion 91 a of the arm 91, and a handle 94 a for rotating the cap nut 94 is attached to the cap nut 94, and is inserted into the arm 91. A cap portion 94b that is opposed to the end face of the rotary pipe 93 is formed. Reference numeral 95 denotes an upper limb table attached to the rotary pipe 93. The side surface is curved and is formed so as to fit when the arm is placed, and a belt 95a for fixing the arm with the arm placed thereon is attached. It has been.

  When the upper limb table 95 configured as described above rotates the handle 94 a to loosen the degree of screwing with the male screw portion 91 a, the rotary pipe 93 can rotate with respect to the arm 91. The upper limb table 95 can always be kept horizontal regardless of whether the backrest 4 is horizontal or raised.

Next, an operation when a patient is diagnosed or treated will be described.
As a method of performing medical examination or medical examination of a patient, it can be performed in either a sitting state or a supine position, but in this description, a case where it is performed in a sitting state will be described.

  First, when the upper limb fixing means becomes an obstacle when the patient sits on the seat 3 in the state shown in FIG. 1, the doctor or assistant pulls the grip ball 85c and engages with the lock pin 85b. When the upper limb table 95 is rotated 90 degrees so as to be flush with the swing arm 8 by disengaging the groove 86a, the upper limb fixing means does not get in the way of getting on and off the patient's chair.

  In such a state, the patient is seated on the examination table, but the seat 3 is seated on the seated patient because the half of the longitudinal position of the seat has a mountain shape by the link mechanism described above. The patient is bent at the knee and prevented from moving forward, so that the patient can be treated and examined in a comfortable posture.

  Next, the upper limb of the patient's right arm is fixed by the upper limb fixing means so that it does not get in the way during diagnosis or treatment. In other words, when the gripping ball 85c is pulled, the lock teeth 85a are detached from the lock groove 83a, and can be turned up and down on the side of the backrest 4 to absorb the patient's extension difference and to move the upper limb support 9 to an appropriate position. Adjustable.

  In this state, the patient's upper limb is placed on the upper limb table 95 and fastened and fixed by the belt 95a. At this time, if there is a gap between the patient's upper limb and the curved surface of the upper limb table 95, the handle 94a is rotated to free the rotating pipe 93 fixed by the cap portion 94b and the pipe-shaped stopper 92. In this state, the upper limb table 95 can be rotated, so that the peripheral surface shape of the patient's arm and the curved surface of the upper limb table 92 coincide with each other, and an excessive twisting force is applied to the patient's arm. There will be nothing.

  When the distance between the upper limb table 92 and the body surface of the patient is too large or too small, the grip ball 85c is pulled to adjust the engagement position between the lock teeth 85a and the lock groove 83a. be able to.

  When the patient is in the sitting position and the right arm is fixed, the handle 73 disposed on the back side of the auxiliary backrest 7 is pulled by the spring force of the spring 74, whereby the lock teeth 73a and the lock groove 71a are pulled. And the auxiliary backrest 7 can be turned (turned to the back side), so that the auxiliary backrest 7 is rotated approximately 90 degrees toward the back side of the backrest 4 in this state. When the handle 73 is returned by the spring force of the spring, the lock teeth 73a are engaged with and fixed to the other lock grooves 71a. Accordingly, since the back side of the right upper body of the patient (for example, the back side of the liver) is opened, it is possible to perform medical care from the opened part.

  In addition, although the U-shaped holding rod 42 is attached to the upper end of the backrest 4, the upper limb fixing means may not be used depending on the contents of medical treatment or examination. In such a case, when the patient's arm is in the way, it is possible to maintain a stable posture by raising the arm to the side of the gripping rod 42 and holding it.

  By the way, when performing radiofrequency ablation treatment or the like in the treatment of liver cancer using the medical table described above, the position of the tumor is often punctured by checking the position of the tumor with an ultrasonic diagnostic apparatus. In order to make the situation easier to understand, a technique to puncture using a system that constructs a CT reconstructed image with the same cross section as the ultrasound image by providing the CT volume data with positional information of the ultrasound diagnostic device has been developed. The laying of the system is increasing.

  However, when constructing a CT reconstruction image, in the above-described medical table of the present invention, the frame constituting the backrest 4 and the frame constituting the auxiliary backrest 7 and the lock shaft 71, the bearing 72, and the handle 73. Since the cover 32 and the like covering the cylinder 31 are made of a magnetic material such as iron, the magnetic sensor that detects the position information of the system for constructing the CT reconstruction image is affected, and the system itself cannot be used. was there.

  Therefore, in the present invention, the frame 7 'constituting the backrest 4 described above and the frame 7' constituting the auxiliary backrest 7, the lock shaft 71, the bearing 72, the handle 73, the cover 32 covering the cylinder 31, and the like are provided. A member that adversely affects the use of a magnetic sensor such as iron is made of a non-magnetic material or a material with less magnetism (the solid line portion shown in FIG. 10), and thus a magnetism generator installed in the vicinity of a patient's liver The effect on the magnetic field to be created was reduced, and a system for constructing CT reconstructed images could be used.

  In the backrest 5 and the auxiliary backrest 7, a wooden or resin plate is attached to the frames 4 'and 7', and a cushion sheet is stretched on the plate.

It is the perspective view seen from the back side of the medical examination table concerning the present invention. It is the side view which showed the link mechanism of the seat part same as the above. It is the perspective view seen from the back lower back side of the backrest of the state which excised the back membrane of the backrest. It is a side view of the state which made the medical treatment table into bed shape. It is the side view which showed the link mechanism of the seat part same as the above. Only an auxiliary backrest is shown, (a) is a back view, and (b) is a sectional side view of the same. It is a perspective view of the rocking | fluctuating arm in an upper limb fixing means. It is sectional drawing which shows the combination structure of a rocking | swing arm and upper limbs receiver same as the above. It is sectional drawing which shows the structure of the upper limbs table part of an upper limb receptacle. It is the perspective view which comprised the magnetic body in a backrest part with the nonmagnetic material and the material with little magnetism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Elevating means 3 Seat 4 Backrest 4 'Frame 42 Notch 6 Link mechanism 7 Auxiliary backrest 7' Frame 71 Lock shaft 72 Bearing 73 Handle 8 Swing arm 9 Upper limb support 91 Arm

Claims (6)

A seat attached to the base, a backrest attached to the seat so that it can be raised and lowered, and two locking grooves are formed at intervals of about 90 degrees in a notch formed on one side of the backrest. An auxiliary backrest that is pivotally attached by a lock shaft and a bearing that is pivotally attached to a bearing that is attached to the back side of the auxiliary backrest, and the tip is selectively engaged with the lock groove. And a handle for operating the auxiliary backrest in a position parallel to the backrest and a position perpendicular to the backside of the backrest. A seat attached to the base, a backrest that can be raised and lowered with respect to the seat, and a backrest that is flush with a notch formed on one side of the backrest and pivots to the back side An auxiliary backrest that is fixed at the position where it is held, a swinging arm that is pivotally supported on the other side of the backrest and that can be locked at a desired angle, and a tip of the swinging arm A medical examination table characterized by comprising an upper limb support for fixing a patient's arm that is vertically extended from a swing arm. An arm for attaching the upper limb support to the swing arm is attached to the swing arm so as to be selectively fixable by two positions of approximately 90 degrees, and the upper limb support is parallel to a backrest side surface. 3. The medical examination table according to claim 2, wherein the position can be changed to a position protruding perpendicularly to the backrest side surface. The upper limb support is pivotably attached to the arm for attaching the upper limb support to the swing arm, and is fixedly mounted, and is rotated on a plane parallel to a surface in contact with the back of the patient on the backrest. The medical table according to claim 2, wherein the patient's arm can be prevented from being twisted. When the backrest is displaced in the standing direction, the substantially central portion in the longitudinal direction of the seat is pushed up and displaced in a mountain shape in conjunction with the displacement, and it is possible to prevent the seated patient's knee from being pushed up and displaced forward. The medical examination table according to claim 1 or 2, wherein the medical examination table is configured as described above. Magnetic field by a magnetic substance located in the vicinity of an organ such as a patient's liver by configuring a metal part of the patient's upper body such as the backrest or the auxiliary backrest with a non-magnetic material or a material having less magnetism The medical examination table according to claim 1, wherein the influence of the medical treatment is reduced.

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