JPH10211243A - Medical examination seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical examination seat in which transfer time from a seated position to an examination position can be shortened to reduce mental and physical burden on a patient. SOLUTION: In a medical examination seat 31, a back plate 35 is moved up with a pair of leg receiving parts 43a, 43b by an elevation means, while it is inclined backward by an inclination means, and after pass of a specified time after starting the up-moving and back-inclination motion, or after they are displaced to specified positions, leg opening action to the leg receiving parts 43a, 43b is started by an opening/closing means 47.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a couch that can be suitably used for treatment and examination in obstetrics, gynecology, urology, and anus.

[0002]

2. Description of the Related Art FIG. 24 is a plan view showing the structure of an opening / closing means 7 provided on a typical prior art obstetric and gynecological examination table 1. This prior art is disclosed in Japanese Patent Publication No. 6-93904. ing. This examination table 1 is provided with a back plate 4 that can be tilted behind a seat portion 3 having a dimension in the front-rear direction (vertical direction in FIG. 24) enough to support only the buttocks of a patient. On both sides (left and right directions in FIG. 24), the front end side (FIG. 2)
The armrests 5a, 5b provided with a pair of leg receiving portions 6a, 6b at the lower end of the arm 4 are pivotally supported on the shafts 10a, 10b so as to be able to undulate. When the back plate 4 is tilted rearward, the front side (the lower side in FIG. 24) of each of the armrests 5a and 5b rises, and the leg receiving parts 6a and 6b also rise with respect to the seat part 3 with the rise. A cylinder 7 is provided on the back plate 4, and one end of a pair of connecting rods 9 a and 9 b is connected to a piston rod 8 of the cylinder 7. The other ends of the connecting rods 9a, 9b are connected to the armrests 5a, 5b, respectively.

When the piston rod 8 of the cylinder 7 is retracted as shown by a solid line in FIG.
The back plate 4 stands up as shown in FIG.
a and 6b are close to each other so as to be a part of the seat 3. When the piston rod 8 of the cylinder 7 is extended from this state, the connecting rods 9a and 9b are expanded right and left around the support shaft 11 as shown by phantom lines in FIG.
As shown in FIG. 25 (2), 5b is expanded to both the left and right sides together with the leg receiving portions 6a and 6b. The back plate 4 is tilted backward in conjunction with the expanding operation of the armrests 5a and 5b and the leg receiving portions 6a and 6b, and the patient is in a supine position with the knees bent while the legs are opened. Move to In this way, the patient is guided to a consultation position without eye contact with a doctor or a nurse, is prevented from arousing shame, and the patient's tension is reduced. The degree of opening of the leg of the patient can be adjusted by the amount of extension of the piston rod 8 of the cylinder 7, and is adapted to be applied to individual differences among patients.

[0004]

In such a conventional technique, the leg is opened in a state where the buttocks of the patient are supported by the seat portion 3 and both leg portions are supported by the respective leg receiving portions 6a and 6b. Or close your legs. At this time, the body weight of the patient is from the state in which the backboard 4 stands up to a state in which the backboard 4 is inclined backward to some extent, and the seat section 3 and the leg receiving sections 6a, 6b.
6b. In particular, each leg receiving part 6a, 6b
, The weights of the two legs of the patient respectively act as loads, and the legs are opened and closed in such a state.
Therefore, a large driving force is required to open and close each of the leg receiving portions 6a and 6b, and the cylinder 7 is used to obtain this large driving force. The power is transmitted to the armrests 5a, 5b by the interlocking rods 9a, 9b, and the leg receiving portions 6a, 6b are transmitted.
b is opened and closed.

Therefore, in order to stop each of the leg receiving portions 6a and 6b at a position that does not exceed the limit position of the leg opening and closing position of the patient, each leg receiving portion 6 suitable for the patient before the medical treatment is performed.
After checking the limit position of the open leg and the limit position of the closed leg of a and 6b, or checking and adjusting the limit position of the closed leg of the patient in the sitting posture shown in FIG. 25 (1), the back plate 4 is tilted backward. However, it is necessary to gradually open the leg receiving portions 6a and 6b and stop just before the limit position of the leg opening, and there is a problem that it takes a long time to shift the patient from the sitting position to the consulting position.

In the examination position shown in FIG. 25 (2), when the examination or treatment approaches the end, the patient unconsciously tries to close the thigh because of the desire to close her legs from shame or fear. May be inserted. It is preferable from the viewpoint of the patient's mental health that such shame and fear of the patient be resolved as soon as possible, and such a couch is desired.

Further, when the examination table 1 is viewed from the right or left side in FIG.
6b is tilted backward together with the back plate 4 while maintaining a certain angle with respect to the back plate 4, or rises forward, so that when the back plate 4 is almost upright at the time of opening and closing legs, Substantially the entire weight of the patient's thigh is transferred to each leg receiver 6a,
6b supports. Therefore, a large force acts on the thigh of the patient from each of the leg receiving portions 6a and 6b in the direction of opening and closing the leg at the time of starting and closing the leg, and the patient must forcibly open or close the leg. Failure occurs and the physical burden on such patients also needs to be resolved.

[0008] Accordingly, an object of the present invention is to provide a couch which shortens the transition time between the sitting position and the consultation position and can reduce the psychological and physical burden on the patient.

[0009]

According to the first aspect of the present invention, there is provided a back plate for supporting at least the back of a patient, and rotatably provided on both left and right sides near one end of the back plate near the waist of the patient. A pair of leg receiving portions, a tilting means for tilting the back plate and the pair of leg receiving portions around a horizontal axis, an elevating means for vertically moving the tilting means, and a pair of leg receiving portions approaching and separating from each other. The back plate is tilted rearward by tilting means while being raised by the elevating means together with the pair of leg receiving portions, and the back plate is tilted rearward by a predetermined amount from the start of the upward and backward tilting. The medical couch is characterized in that the leg opening operation of each leg receiving portion is started by the opening / closing means after a lapse of time or after a displacement to a predetermined position. According to the present invention, the back plate and the pair of leg receiving portions are tilted rearward while being raised by the elevating means, and are displaced to a predetermined position after a predetermined time has elapsed from the start of the raising and the tilting rearward. After that, each leg receiving portion starts the leg opening operation by the opening / closing means. Therefore, at the beginning of the leg-spreading movement of each leg receiver, the patient's center of gravity has moved backwards, so that each leg receiver receives little of the patient's weight, for example, only slightly on the knees. In addition, it is possible to eliminate the disadvantage that the legs are forcibly opened as in the related art. In addition, compared to the case where each leg receiving portion starts the leg opening operation at the same time as the rise of the back plate and the start of the backward tilt, it is possible to reduce the stimulus to the shame of suddenly opening the leg for the patient, thereby. The psychological burden on the patient can be reduced.

According to a second aspect of the present invention, there is provided a back plate for supporting at least a back portion of a patient, and a pair of leg receiving portions rotatably provided on left and right sides near one end of the back plate near the patient's waist portion. Tilting means for tilting the back plate and the pair of leg receiving parts about a horizontal axis, elevating means for vertically moving the tilting means, and opening and closing for opening and closing the pair of leg receiving parts in directions approaching and moving away from each other. The back plate is tilted forward by the tilting means while being lowered by the elevating means together with the pair of leg receiving portions, and each leg is opened and closed by the opening and closing means almost simultaneously with the start of the lowering and the forward tilting. This is a medical table characterized by starting a leg closing operation of a receiving part. According to the present invention, the back plate is tilted forward by the tilting means while being lowered by the lifting / lowering means, and almost simultaneously with the start of the downward movement and the forward tilting, each leg receiving portion starts the closing operation by the opening / closing means. When the examination or treatment is nearing its end, the leg closing action is started immediately and the shame and fear of the patient can be resolved almost at the same time as the end of the consultation, whereby the patient tries to close the legs Psychological and physical burdens can be reduced, for example, by relaxing. Further, as described above, the leg closing operation of each leg receiving portion is started almost simultaneously with the start of the lowering of the back plate and the start of the forward tilt, so that the medical treatment time is shortened and the medical treatment time can be shortened.

According to a third aspect of the present invention, in addition to the structure of the first aspect, the back plate is provided near one end of the back plate almost simultaneously with the opening of each leg receiving portion by opening / closing means. A waste receiving tray which is advanced in a direction protruding from a vicinity of one end of the waste receiving tray. According to the present invention, a waste receiving tray is provided near one end of the back plate, and the waste receiving tray advances almost simultaneously with the opening of each leg receiving portion and projects from near the one end of the back plate. In the sitting position where the backboard is standing, the backboard is retracted to the back side near one end of the backboard, so that the waste receiving tray does not interfere with the patient and the operator, and receives the waste in a state where each leg receiving part is opened. position,
In other words, it is arranged automatically, so that it is not necessary for the operator or assistant to operate the waste receiving tray separately from the lifting operation of the back plate and the tilting operation to the rear and the opening operation of each leg receiving portion, which is convenient. Be improved.

According to a fourth aspect of the present invention, in addition to the configuration of the second aspect, near one end of the back plate, the lowering of the back plate is started by the raising / lowering means or by the tilting means. A retreating waste receiving tray is provided on the back side near the one end of the back plate almost simultaneously with the start of the forward tilting. According to the present invention, a waste receiving tray is provided near one end of the back plate, and the waste receiving tray is provided at one end of the back plate almost simultaneously with the start of the lowering of the back plate or the start of the forward tilting of the back plate. Retreat to the back side near the part. Therefore, the waste receiving tray is prevented from coming into contact with the base or the floor of the medical examination table when the backboard stands up, and it is necessary for the operator or assistant to separately perform an operation for retracting the waste receiving tray. And convenience is improved.

According to a fifth aspect of the present invention, in the configuration according to any one of the first to fourth aspects, the opening / closing means is provided with a load detecting means for detecting a load on each leg receiving portion, When the load detected by the load detecting means reaches a predetermined value, the opening / closing operation of each leg receiving portion by the opening / closing means is stopped, selectively switched to one of deceleration and acceleration. . According to the present invention, when the load of the opening / closing means reaches a predetermined value by the load detecting means, the opening / closing operation of each leg receiving portion by the opening / closing means is stopped, decelerated, or accelerated. This eliminates the problem that the patient's leg is opened or closed with excessive force. Therefore, even for elderly patients and patients with impaired hip joints, the legs are not forced to open or close, and the psychological and physical burden is reduced.

According to a sixth aspect of the present invention, in the invention according to the fifth aspect, the opening / closing means is configured such that one of the leg receiving portions detected by the load detecting means reaches the predetermined value. Then, the opening and closing operation of at least the one leg receiving portion is stopped or decelerated. According to the present invention, when the load on any one of the leg receiving portions reaches a predetermined value, the opening / closing operation of at least one of the leg receiving portions is stopped or decelerated. Even if only one of them has an obstacle, the opening / closing operation of the one leg receiving portion or both leg receiving portions is stopped or decelerated, thereby preventing the leg from being forcibly opened or closed.

[0015]

FIG. 1 is a perspective view showing an obstetrics and gynecology examination table 31 according to an embodiment of the present invention, and FIG. 2 is a side view of the obstetrics and gynecology examination table 31. The examination table 31 for obstetrics and gynecology (obstetrics and gynecology is collectively referred to as obstetrics and gynecology), which is a medical examination table, has a substantially flat support surface 34 that supports the back of the patient P from the head 32 to the waist 33. The patient P is connected to the back plate 35 and one end 36 supporting the vicinity of the waist 33.
And a seat 38 for supporting the buttocks 37 of the patient P, and the seat 38 near the one end 36 of the back plate 35 near the waist 33 of the patient P.
(Refer to the left and right when viewed from the patient sitting on the examination table 1, in FIG. 2, the right side is perpendicular to the paper surface and the depth direction perpendicular to the paper surface is left).
1b, and a pair of support arms 5 rotatably provided in directions A1, A2 approaching each other and directions B1, B2 away from each other around the rotation axes 41a, 41b.
7a, 57b, legs 42a, 42b of patient P
And a pair of leg supports 39a, 39b provided with leg supports 43a, 43b respectively supporting the back plate 35, the seat 38, and the pair of leg supports 39a, 39b, around the horizontal axis 44. A tilting means 45 for tilting in the C2 direction, an elevating means 46 for raising and lowering the tilting means 45 in the directions of the arrows D1 and D2, and each leg support 39
a, 39b in directions A1, A2 approaching each other around the rotation axis 41a, 41b and directions B1,
A pair of opening / closing means 4 for individually rotating and opening / closing operation at B2
7, a base 48 on which the elevating means 46 is mounted and mounted on the floor of the medical office, and a foot switch 50 connected to the base 48 by a cable 49.

Here, in the present invention, the "seat" means a seat 251 as shown in FIGS.
Are substantially flush with the back plate 250 and are integrally formed with the back plate 251. In addition, in the present invention, the “leg rest” refers to one that mainly supports the back of the knee as shown in FIGS. 2 and 4, a form that supports from the back of the knee to the vicinity of the thigh, or the vicinity of the thigh. It may be of a type that supports only.

FIG. 3 is a front view showing the examination table 31 in a state in which each leg support 39a, 39b is closed. FIG. 4 is a view showing the examination table 3 in a state in which each leg support 39a, 39b is closed.
FIG. The pair of leg supports 39a, 3
Each of the rotation axes 41a and 41b of 9b moves from the vicinity of one end 36 of the back plate 35 toward the other end 66 of the back plate 35 with respect to an imaginary vertical plane 65 that divides the back plate 35 into two symmetrical parts. An imaginary vertical plane 65 which is on a plane S (see FIG. 2) inclined in a direction away from the plate 35, and each extension line of the rotation axes 41a and 41b divides the back plate 35 into two substantially symmetrically left and right. They are arranged so as to intersect at the upper intersection 67.

The seat 38 is provided with the rotation axes 41a, 41b.
And a pair of buttocks support surfaces 51a, 51b provided symmetrically with respect to the virtual vertical plane 65, and interposed between the buttocks support surfaces 51a, 51b. As shown in FIG. 2, it has a substantially triangular center support surface 52 that bends at an angle θ1 and supports the vicinity of the sacrum of the patient P. A U-shaped notch 53 is formed between the buttocks support surfaces 51a and 51b so that the perineum of the patient P is exposed below the seat 38. The width W1 of the seat 38 in the vertical direction in FIG.
mm, and the angle θ1 is selected from 160 to 170 degrees.

Below the seat 38, a waste receiving tray 54 is provided at the center thereof so as to be able to move forward / backward as indicated by arrows F1 and F2, and as shown by an imaginary line 55 in FIG.
The support surface 34 projects horizontally to the right in FIG. 2 in a state where the support surface 34 is disposed horizontally, and is configured to receive dirt generated at the time of examination or treatment. Opening / closing means 47 is provided on both sides of the waste receiving tray 54 as shown in FIGS.

FIG. 5 is a front view showing the examination table 31 in a state where the respective leg supports 39a and 39b are open, and FIG. 6 is a diagram showing the examination table 3 in a state where the respective leg supports 39a and 39b are open.
FIG. The opening / closing means 47 individually rotates each of the leg receiving stands 39a and 39b, and stops as a result of the force of the legs 42a and 42b of the patient P, as described later. Consists of The base ends of the support arms 57a, 57b are fixed to the drive sources 56a, 56b, and the leg receiving portions 43a, 43b are provided at the free ends of the support arms 57a, 57b, respectively, as shown in FIGS. 4 can be rotated from the closed state shown in FIGS. 5 and 6 to the open state shown in FIGS.

As described above, since the opening / closing means 47 is composed of the pair of drive sources 56a and 56b, even if one of the two legs has a failure and the degree of the failure of the two legs is different, the patient is not affected. Each leg support 39a, 39b is made to follow in accordance with the degree to which both legs of P can be opened, and it is possible to perform a leg opening operation and a leg closing operation with a reduced physical burden.

The leg receiving portions 43a and 43b are loosely connected to the free ends of the support arms 57a and 57b, so to speak, so that the patient P
Is configured to allow a shift between the leg portions 42a and 42b and the leg receiving portions 43a and 43b. Specifically, as means for connecting the leg receiving portions 43a and 43b to the free ends of the support arms 57a and 57b with a loose fit, connecting means 63a and 63b realized by ball bearings are provided.

As shown in FIG. 2, one connecting means 63a is provided with a ball 64 fixedly provided on the leg receiving portion 43a.
And a ball receiving piece 68 provided at the free end of the support arm 57a, and the ball 64 is fitted in the ball receiving piece 68 from the neutral position to an arbitrary circumferential direction, for example, 0 to 7 degrees. Can be angularly displaced within the range, and the leg receiving portion 43a can also be angularly displaced similarly.
The other connecting means 63b is also the same as the connecting means 63 described above.
It has the same configuration as a.

Since the leg receiving portions 43a and 43b are connected to the free ends of the support arms 57a and 57b by the connecting means 63a and 63b, the leg receiving portions 43a and 43b are connected as described above. The free ends of the support arms 57a and 57b have a so-called looseness with respect to the free ends thereof.
The shift of the legs 42a, 42b of the patient P is allowed with respect to the movement of the a, 43b around the rotation axes 41a, 41b,
The physical burden on the leg of the patient P can be reduced.

Each of the leg receiving portions 43a and 43b has a structure shown in FIGS.
In order to support the back side of the thigh 58 of the patient P, the thigh support surfaces 59a and 59b, and the thigh support surfaces 59a and 59, which are concave and face upward.
b from the front end of b to be bent at a substantially right angle and continue, FIG.
4 and FIG. 6, the rear knee supporting surface 62 a and 62 b are formed in a concave shape facing the right front and support the rear knee 60 and the rear lower leg 61 (see FIG. 1) of the patient P. .

Since the thigh support surfaces 59a and 59b and the rear knee support surfaces 62a and 62b are formed in a concave shape, the legs 42a and 42b of the patient P can be stably held, and the legs can be opened and closed. It prevents misalignment, makes it easier for the surgeon to perform screening and treatment, and gives the patient a sense of stability, as well as the need to tension the thigh muscles to resist the weight of the legs. Without legs 4
There is no need to apply force to keep the legs 2a and 42b in the supine position with the legs open, and the physical burden is reduced.

The thigh support surfaces 59a, 59b and the rear knee support surfaces 62a, 62b are respectively provided with the leg receiving portions 43a, 4b.
3b, when viewed from the side as shown in FIG.
It can be realized by a mat having a cushioning property formed in a character shape. The surface of such a mat is covered with a sheet made of a synthetic resin having water resistance and chemical resistance. The seat 38 and the back plate 35 are also constituted by similar mats.

Each of the rotation axes 41a and 41b forms an angle θ2 (see FIGS. 3 and 4) on the plane S (see FIG. 2) including them, and the angle θ2 is about 60 to 90 degrees. It is selected within the range, preferably at about 80 degrees. The angle θ3 formed by each of the rotation axes 41a and 41b with the support surface 34 of the back plate 35 is selected within a range of about 35 to 55 degrees, and is preferably set to 45 degrees. Thus, each leg support 39
The rotation axes 41a and 41b, which are the rotation centers of a and 39b, are set so as to form an angle θ2 on the plane S and form an angle θ3 with the support surface 34 on a vertical plane when viewed from the side. Thus, the burden on the hip joint during the leg opening and closing operations of the patient P can be reduced as much as possible.

FIG. 7 is a partial cross-sectional view showing the internal structure of the examination table 31. FIG. 8 is a tilting means 45 and an elevating means 46.
FIG. The tilting means 45 is provided so as to surround a flat support plate 92 having a notch 91 opened at one end side in the longitudinal direction (to the right in FIG. 7), and the notch 91 of the support plate 92. The bracket 93 is erected and has a horizontal section perpendicular to the plane of FIG.
Arrow C1 around the horizontal axis 44 by a shaft 94 having the horizontal axis 44 at the upper end of the bracket 93.
A pair of mounting plates 96a and 96b which are vertically fixed at intervals to each other on both sides of the lower surface of the support plate 92 with the notch 91 therebetween, and a rocking body 95 which is connected to be tiltable in the C2 direction.
And a tilt cylinder 98 pivotally supported by a shaft 97 at the lower end of each of the mounting plates 96a and 96b. As the tilt cylinder 98, a double-acting hydraulic cylinder is used.

The tip of the piston rod 103 of the tilting cylinder 98 is connected by pins 100 to a pair of mounting pieces 99 provided on one end of the rocking body 95 with respect to the shaft 94. The oscillating body 95 includes a flat substrate 101 to which the back plate 35 is fixed, and an oscillating frame 102 which is fixed to the substrate 101 by welding and has a rectangular planar shape when viewed from above in FIG. The mounting piece 99 is formed integrally with the swing frame 102, and a shaft 94 having the horizontal axis 44 is inserted therethrough. Both ends in the axial direction of the shaft 94 are supported by inserting both side walls 104 and 105 of the bracket 93. The side walls 104 and 105 are connected to each other by a front wall 106, have a substantially U shape as described above, and are fixed on the support plate 92 by welding.

When the piston rod 103 of the tilt cylinder 98 is extended, the rocking body 95 moves around the horizontal axis 44 with an arrow C1.
When the piston rod 103 retracts, the rocking body 105 tilts backward about the horizontal axis 44 in the direction of arrow C2. The back plate 35 is fixed to the substrate 101 of such an oscillator 95. The back plate 35 is provided with a seat 38 connected to one end 36 thereof, and the seat 38 and the back plate 35 constitute a backrest 107.

The backrest 107 is made of a metal back plate 108 and a frame 109 fixed on the back plate 108 by bolts or the like and configured by framing a square pipe or the like.
And a separate plate-like back plate 110a, 110a fixed between the back plate 35 and the seat 38 by bolts on the frame 109.
10b, cushion layers 111a and 111b adhered to the respective back plates 110a and 110b by an adhesive, and a topsheet made of a synthetic resin having water resistance and chemical resistance that covers the outer surfaces of the cushion layers 111a and 111b. 1
12a and 112b. Each back plate 110a, 110
b, the cushion layers 111a, 111b and the topsheets 112a, 112b are individually formed corresponding to the back plate 35 and the seat portion 38, respectively, are positioned and fixed on the frame 109, and the backrest 107 is fixed. Configure.

On the back surface of the back plate 108, two connecting pieces 113 and 114 are fixed by bolts near one end 36 of the back plate 35, and each of the connecting pieces 113 and 114 is fixed to the substrate of the rocking body 95 by a plurality of bolts 115. It is fixed to 101.

When the backrest 107 is attached to the substrate 101 in this manner, the back surface of the back plate 35 of the backrest 107 and the surface of the substrate 101 form an angle θ4, and the angle θ4 is about 30 degrees. To be elected. Therefore, as shown in FIG.
03 is extended, the rocking body 95 is tilted substantially horizontally, and the backrest 107 is placed in the sitting position.
Makes a similar angle θ4 to the vertical plane. When the piston rod 103 of the tilt cylinder 98 contracts, the phantom line 11
6, the backrest 107 can be arranged substantially horizontally, and when the piston rod 103 is retracted, the backrest 107 can be positioned as shown by the phantom line 117.
7 forms an angle θ5 with respect to the horizontal plane (see FIG. 2), and the angle θ5 is selected from 5 to 10 degrees. In this manner, the angle θ at which the backrest 107 has its head side downward with respect to the horizontal plane
The reason why the inclination is set to 5 is that when the patient P becomes anemic during consultation due to poor physical condition or extreme tension, the head is lowered to take rest.

In this manner, the backrest 107 is tilted by the tilting means 45 so that the back plate 35 has an angle θ4 with respect to the vertical plane.
When the patient is tilted from a sitting position that is substantially horizontal to a medical examination position, and furthermore from a horizontal plane to a rest position in which the head side is inclined downward at an angle θ5, the angle is detected by a tilt angle detector 118 provided on the rocking body 95. Is done. The tilt angle detector 118 is realized by a rotary encoder. The input shaft of the tilt angle detector 118 extends outward through one side wall 105 of the rocking body 95, and a gear 121 is provided at the end of the outwardly projecting edge. Fixed. The gear 121 meshes with a gear 122 fixed to one axial end of a shaft 94 projecting outward from one side wall 105 of the bracket 93, and rotates the shaft 94 and each gear 12 according to the rotation of the bracket 93.
The rotation amount can be transmitted to the tilt angle detector 118 via the reference numerals 2 and 121. Thus, the tilt angle detector 1
Numeral 18 can detect the tilt angle of the rocking body 95, that is, the tilt angle of the backrest 107.

On the back plate 108 of the backrest 107,
A tilting cover body 123, which is further fixed to the head side than one of the connecting pieces 113 provided on the head side and covers the vicinity of the upper part of the swinging body 95 and the bracket 93, has a vertical cross section curved in an arc shape. As shown by the solid line in FIG. 7, the tilting means 45 can be mainly covered from above in a state where the backrest 107 is placed in the sitting position, thereby preventing intrusion of dust and the like.

The elevating means 46 is provided on the bottom plate 12 of the base 48.
7, a base plate 128 fixed substantially at the center, and a plurality of (eight in the present embodiment) guide rollers 129 erected vertically on the base plate 128, and are spaced at intervals of 90 degrees in the circumferential direction at the upper part. Guide posts 130 provided in pairs vertically and rotatably around a horizontal axis.
And an elevating guide rod 131 movably inserted into the guide post 130 in the axial direction thereof and movable without rattling by the respective guide rollers 129, and a rod trunnion type formed by a trunnion pin 132 on the upper part of the guide post 130. And a lifting / lowering amount detector 134 which is provided on one side of the guide post 130 at one end in the axial direction of the trunnion pin 132 and detects the lifting / lowering amount of the tilting means 45.

The piston rod 13 of the lifting cylinder 133
5 is fixed to the lower surface of the support plate 92 of the lifting / lowering means 46 by bolts. Both ends of the lifting guide rod 131 are fixed to the lower surface of the support plate 92 by bolts, similarly to the piston rod 135. These pistons 1
The axes of 35 and the lifting guide rod 131 are parallel to each other. Of the plurality of guide rollers 129, the four guide rollers 129 arranged at the upper stage are the guide posts 13
When the tilting means 45 is lowered, the lower surface of the support plate 92 is supported by contacting the upper four guide rollers 129.

The elevation detector 134 is realized by a rotary encoder. An input shaft 137 is connected to one longitudinal end of a first link member 138. One end in the longitudinal direction of the second link member 140 is connected to the other end in the longitudinal direction of the first link member 138 by a pin 139,
The other end in the longitudinal direction of the second link member 140 is
Hanging piece 14 protruding from the lower surface on one side
1 by a pin 142.

When the tilting means 145 is raised or lowered by the lifting / lowering means 146, the displacement is transmitted to the input shaft 137 of the lifting / lowering amount detector 134 by the first and second link members 138 and 140, and the lifting / lowering amount of the tilting means 145 is increased. Is electrically detected.

FIG. 9 shows one driving source 56b of the opening / closing means 47.
FIG. 10 is a cross-sectional view showing a specific configuration of the driving source 56.
FIG. 10 is a cross-sectional view of FIG. As described above, the opening / closing means 47 has the pair of driving sources 56a and 56b,
Since these drive sources 56a and 56b are provided on the examination table 31 and configured symmetrically with respect to the vertical plane,
One drive source 56b arranged on the left side (the right side in FIG. 3) when viewed from the patient P seated on the examination table 31 will be described.
Description of the other drive source 56a is omitted to avoid duplication.

The drive source 56b is provided with a thick plate-like mounting substrate 151 fixed to the lower surface of the seat portion 38, and is provided upright on one surface of the mounting substrate 151, and is provided with a speed reducer 152 and a motor 153.
, A pair of bearing pieces 155, 156 erected on one surface of the mounting board 151, and a bearing 159 fitted in shaft holes 157, 158 formed in each bearing piece 155, 156. , 160 and the output shaft 161 of the reduction gear 152 coaxially, and both ends in the axial direction are the bearing 1.
Rotating shafts 162 supported by 59 and 160, respectively
And

The driving source 56b further includes the rotating shaft 1
Worm gear 1 fixed at its axially intermediate portion to 62
63 and the worm gear 163, and the rotation axis 4
Worm wheel 16 having a pivot axis 164 substantially coaxial with 1b and perpendicular to said one surface of the mounting substrate 151.
5, a rotation shaft 166 coaxial with the rotation axis 164 and to which the worm wheel 165 is fixed, and a rotation shaft 166.
A thrust bearing 167 rotatably connected to the mounting board 151 about a rotation axis 164, a rotating body 168 fixed coaxially to the rotating shaft 166, and a support arm fixed coaxially to the lower surface of the rotating body 168. An arm attachment body 169 to which the base end of the arm 57b is fixed; an open limit position detector 170 provided on the lower surface of the attachment board 151 for detecting the open limit positions of the leg receiving portion 43b and the support arm 57b; A lower limit position detector 171 for detecting a lower limit position of the leg receiving portion 43b and the support arm 57b; a worm wheel 165;
67, a cam 172 fixed to the rotation shaft 166 and a rotation amount detector 173 that detects the amount of rotation of the rotation shaft 166 and is realized by a rotary encoder.

Each of the open limit position detector 170 and the close limit position detector 171 comprises a limit switch, and each operating piece (not shown) provided in each of the detectors 170 and 171 resiliently contacts the cam surface of the cam 172. When the cam 172 rotates about the rotation axis 164, each operating piece is pressed at the predetermined open limit position and closed limit position, whereby the switching mode of each of the detectors 170 and 171 is switched, and the motor 153 is switched. The biasing power is cut off, and the leg receiving portion 43b and the support arm 57b can be stopped at the limit positions of the open leg and the closed leg.

FIG. 11 is a partial perspective view of the tray driving means 181 of the waste receiving tray 54 as viewed from below the seat 38. The waste receiving tray 54 is provided with a tray driving unit 18.
2 from the retracted position indicated by the solid line in FIG.
The displacement driving is performed over the projecting position indicated by reference numeral 5. The tray driving means 181 includes a pair of angular displacement means 182 for supporting both side portions of the waste receiving tray 54,
82 is driven by a swing lever 183 in the direction of the arrow F1 and driven to expand and contract so as to be pulled in the direction of the arrow F2, and has expansion and contraction means 184 attached to the connection piece 114 on the seat 38 shown in FIG. .

The angular displacement means 182 has a mounting frame 185 having a substantially L-shaped cross section perpendicular to the longitudinal direction, and is fixed to the mounting frame 185, and has a substantially U-shaped cross section perpendicular to the longitudinal direction.
And a thin anti-slip plate 1 fixed to the inner surface of the outer guide rail 186 and made of synthetic resin.
87, a stopper 188 fixed on the inner surface near one longitudinal end of the outer guide rail 186, and an outer guide rail 186.
Moving body 191 slidably fitted in
And a lever holding member 192 in which the swing lever 183 is pivotally supported so as to be angularly displaceable.

The expansion / contraction means 184 connects the two parallelogram links 211 and 212 constituting the pantograph mechanism to two.
A screw 225 to which the screw shaft 219 is screwed by the rotation of the screw shaft 219 of the motor 215 which is connected by the two connecting pieces 213 and 214 and is swingably supported by the pins 218 between the links 211 and 212, respectively. Are pulled in a direction approaching the motor 215 or separated in a direction away from the motor 215 so that the links 211 and 212 can be extended and contracted. A central portion of the connecting arm 17 is attached to one connecting piece 213 by a pressing piece 216 so as to be angularly displaceable. Also, the other connecting piece 214
Is fixed to the connection piece 114 by a bolt or the like. Such a stretching means 184 includes a waste receiving tray 5.
4 forward position detector 174 for detecting the forward position
And a retreat position detector 175 for detecting the retreat position of the waste receiving tray 54, the parallelogram link 211,
212 is provided.

The expansion / contraction means 184 is connected to the angular displacement means 182.
At the same time, it is displaced following the backrest 107. The connecting arm 217 includes a rotating portion 221 extending in a straight line, a pair of mutually parallel swinging portions 222a and 222b which are bent at right angles at both ends in the axial direction of the rotating portion 221 and continue, and each of the swinging portions 222a. , 222b, each of which has a pair of engaging portions 223a, 223b which are bent outwardly at substantially right angles from each other and connected to each other, and which are inserted into the engaging holes 209 and engaged therewith.

When the extending / contracting means 184 extends in the direction of the arrow F1, the swing lever 183 is pushed forward along the direction of the arrow F1, and the end of the moving body 191 on the front end side in the direction of the arrow F1 contacts the stopper 188. Then, the swing lever 183 causes the free end portion 198 to be angularly displaced upward about the axis of the screw 205 as a rotation center, thereby causing the waste receiving tray 54 to move to the seat portion as shown by the imaginary line 55 in FIG. 38, while being projected forward from below, it can be angularly displaced upward and held substantially horizontally.

When the waste receiving tray 54 protrudes in this manner, the notch 53 of the seat 38 faces above the waste receiving tray 54, so that the waste can be reliably accommodated without scattering around. In addition, as shown by the solid line in FIG.
The backrest 107 is returned to the seating position without contacting the floor or the base 48, not obstructing the surgeon or caregiver, not requiring a large space to avoid contact with the waste receiving tray 54. be able to.

FIG. 12 is a block diagram showing an electrical configuration of the control means 230 for controlling the operation of the examination table 31. The control means 230 controls each rotation amount detector 173 (hereinafter, rotation amount detector 1) for detecting the rotation amount of each leg receiving portion 43a, 43b.
73 is attached with a suffix a or b when individually referred to as left and right). A zero point adjustment circuit 231 for setting a rotation start position based on the output from the elevation amount detector 134 and the tilt angle detector 118 A / D converter 232 for inputting each output and each output zero-adjusted by the zero-point adjusting circuit 231 from each of the rotation amount detectors 173a and 173b, and converting them into digital signals, is realized by a microprocessor. Each of the detectors 134, 118, which have been converted into digital values by the A / D converter 232,
A signal processing circuit 233 that performs signal processing on each detection value from 173a and 173b and a lower limit position and an upper limit position based on the output of the elevation detector 134 and the output of the tilt angle detector 118, which are realized by, for example, an EP-ROM. Position information A, B, which will be described later, such as the forward tilt limit position and the backward tilt limit position of the back plate 35, and the amount of rotation of each leg receiving portion 43a, 43b based on the output of each amount of rotation detector 173a, 173b. Memory 2 for storing C and D
34, an input / output circuit 235, and an input signal via the input / output circuit 235 and an input signal from the foot switch 50 are compared to change the tilting means 40 to the lifting / lowering means 46, the opening / closing means 47, and the tray driving means 181. A driving circuit 236 for outputting a driving signal to each of the rotation amount detectors 17
3a and 173b, the respective leg receiving portions 43 based on the voltage changes.
a, an overload monitoring circuit 236 for detecting the load of the switches 43a and 43b and selectively switching one of the deceleration and the deceleration of the opening / closing means 47.

The foot switch 50 includes a set operation unit 241, a reset operation unit 242, an ascending operation unit 243, a descent operation unit 244, a standing operation unit 245, and a tilt operation unit 24.
6, a leg opening operation unit 247, a leg closing operation unit 248, a tray advance operation unit 249, and a tray retreat operation unit 250. The drive circuit 236 includes a lifting relay 236a, a tilting relay 236b, a leg receiving portion relay 236c, and a waste receiving tray relay 236d, and the lifting / lowering means 46, the tilting means 45, the opening / closing means 47, and the tray driving means 181. Drive.

FIGS. 13 to 19 are flowcharts for explaining the control operation of the examination table 31 by the control means 230. First, referring to FIG. 13, a reading operation is disclosed in step a1, and it is determined in step a2 whether a memory switch (not shown) is turned on. If the memory switch has been turned on, the process proceeds to step b1, and if the memory switch remains off, the process proceeds to step a3, where it is determined whether the set operation unit 241 of the foot switch 50 has been turned on. When the set operation unit 241 is not operated, the process proceeds to step a4, and it is determined whether the reset operation unit 242 is operated. When the reset operation unit 242 is turned on, the process proceeds to step f1 in FIG. If it is, the process returns to step a1 for starting reading,
Such steps a1 to a4 are repeated.

When the memory switch is turned on in step a2, the reading operation is continued in step b1, and it is determined in step b2 whether the set operation unit 241 is turned on. When the set operation unit 241 is operated and turned on, the process proceeds to step g1 in FIG. 17, and if the set operation unit 241 is off, the reset operation unit 2 is turned on in step b3.
It is determined whether or not 42 is on. Reset operation unit 242
Is ON, the vertical position A detected by the elevation detector 134 in step b4, the tilt angle B detected by the tilt angle detector 118, and the right rotation detector 173a.
The angle C of the right leg receiving portion 43a detected by the above and the angle D of the left leg receiving portion 43b detected by the left rotation amount detector 173b are stored in the memory 234.

Referring to FIG. 14, when the memory switch is turned on in step a2 (see FIG. 13), the process proceeds to steps c1 and d1. At step c1, the input of the leg opening and closing operation signals by the leg opening operation unit 247 and the closing operation unit 248 is prohibited by turning on the memory switch. At step c2, the current rotation amount of the right leg receiving unit 43a is subjected to signal processing. Step c
At 3, it is determined whether or not the angle has reached any of the leg opening limit and the leg closing angle. If this angle has reached either the leg opening limit angle or the leg closing limit angle, the input of the angle of the right leg receiving portion 43a to the leg receiving portion relay 236c is stopped again in step c1, and Either one of the opening operation and the closing operation of the right leg receiving unit 43a by the operation of the leg operation unit 247 or the closing operation unit 248 is prohibited. In step c3, the right leg receiving portion 43a
Does not reach the limit position of the open leg or the limit position of the closed leg, the process proceeds to step c4, and a control signal of a preset rotation speed is output from the speed control circuit provided in the overload monitoring circuit 237. In step c5, the motor 153 provided on the drive source 56a on the right side of the opening / closing means 47 is driven, and the load of the motor 153 is detected by, for example, a galvanometer. The detected load value is used to stop the motor 153 in step c6. , Deceleration or acceleration is determined. For example, if the load detection value is
3, the overload monitoring circuit 237
Outputs a stop signal, and the input of the open leg operation or the closed leg operation is stopped in step c1.

If the detected load value is larger than the normal load when the patient's leg is mounted on the right leg receiving portion 43a in step c6, the leg receiving portion relay 236c
When the load detection value is smaller than the load on the patient's leg, the control is performed in such a direction as to accelerate the open leg or closed leg signal. These deceleration and acceleration signals are input to the speed control circuit provided in the overload monitoring circuit 237 in step d4, and the motor 153 for rotating the left leg receiving portion 43d is controlled in step d5 in the same manner as described above. At d6, the load is detected. If the vehicle is stopped, the process proceeds to step d1, and if the vehicle is accelerated or decelerated, the process proceeds to step c4. The speed control circuit of the right leg receiving portion 43a receives the leg opening or leg closing signal. Accelerated or decelerated.

In step d1, the input signal of the open leg or closed leg leg relay 236c is stopped. In step d2, the current rotation amount of the left leg leg 43b is input to the signal processing circuit 233. In step d3, the angle is determined from the limit position of the open leg to the limit position of the closed leg in the same manner as the above-described determination of the angle of the right leg receiving portion 43a. Alternatively, if the movement beyond the limit position of the closed leg is prohibited and the limit position of the open leg and the closed leg is not reached,
The rotation speed set in advance in step 4, or the above-mentioned step c.
In step d5, the motor 153 is driven in step d5 by being decelerated or accelerated from the set speed by the open or closed leg signal decelerated or accelerated in step 6.

Referring to FIG. 15, when the memory switch is turned on in step a2 (see FIG. 13), the process proceeds to step e1, where the vertical position A ₁ detected by the elevation detector 134 and the tilt angle detection are detected. Angle B ₁ detected by the detector 118, the angle C _{1 of} the right leg receiving portion 43a detected by the right rotation amount detector 173a, and the angle D of the left leg receiving portion 43b detected by the left rotation detector 173b. ₁ is rewritten instead of the vertical position A ₀ , the tilt angle B ₀ , the right leg receiving portion angle C ₀ , and the left leg receiving portion angle D ₀ already stored in the memory 234. In the next step e2,
The signal processing circuit 233 reads the new tilt angle B ₁ stored in the memory 234, whether the new tilt angle B ₁ with respect to the inclination angle B ₀ in the previous Step e3 is small (B ₀
−B ₁ )> 0, and if the new inclination angle B ₁ is larger than the previous inclination angle B _{0, the process} proceeds to the next step e4, where the new inclination angle B ₁ is larger than the previous inclination angle B ₀ . Is also determined. Proceeds to step e5 when new tilt angle B ₁ is larger than the inclination angle B ₀ of the previous, read a new vertical position A _1, from the vertical position A ₀ new vertical position A ₁ is the previous Step e6 Is also determined. Proceeds to step e7, if the new vertical position A ₁ is greater than the vertical position A ₀ in the last, it is determined whether re new vertical position A ₁ is less than the vertical position A ₀ in the previous, the new Do If the vertical position a ₁ is greater than the vertical position a ₀ in the last, the process returns to step a1 (see FIG. 13).

[0059] In step e3 the foregoing, when a new tilt angle B ₁ is smaller than the inclination angle B ₀ of the last time, the flow proceeds to step e8, the signal processing circuit 233 upright back plate 35 and outputs a standing signal Let it. In the case the new tilt angle B ₁ at the step e4 is greater than the inclination angle B ₀ of the last time, the signal processing circuit 233 at step e9 outputs a tilt signal, thereby tilting the back plate 35. If more the new vertical position A ₁ in step e6 is smaller than the vertical position A ₀ of the last time, the flow proceeds to step e10, the signal processing circuit 2
33 up signal a new vertical position A ₁ outputs a continues to output the up signal until the previous vertical position A ₀ or more.
In the case the new vertical position A ₁ in step e7 is greater than the vertical position A ₀ of the last time, the signal processing circuit 233 outputs a down signal in step e11, the vertical position of the new vertical position A ₁ is the previous The output of the falling signal is continued until it becomes A ₀ or less.

Referring to FIG. 16, when the reset operation part 242 is operated and turned on in the step a4 (see FIG. 13), it is stored in a predetermined storage area of the memory 234 in a step f1. The vertical position A ₀ , the tilt angle B ₀ , the right leg receiving portion angle C ₀ , and the left leg receiving portion angle D ₀ are stored in another storage area of the memory 234 in the other vertical position A ₂ , the tilt angle B ₂ , the right leg receiving portion angle C ₂ and the left leg receiving portion angle D ₂ , and the signal processing circuit 233 continues to output the storage signal of the waste receiving tray 54 until the retreat position detector 175 detects it at step f2. receives other right leg rewritten from the memory 243 in step f1 unit angle C ₂ and the left leg receiving portion angle D ₂ reads, the right leg receiving portions閉脚signal other right leg receiving portions in step f4 in step f3 Angle C ₂ The signal is output until the previous right leg receiving portion angle C ₀ or less, and the right leg receiving portion 43a is closed, and in step f5, the left leg receiving portion closing signal is transmitted to the other left leg receiving portion angle D ₂ at the previous left. and outputs to a leg receiving portion angle D ₀ or more, thereby閉脚left leg receiving portion 43b. The reason why the determination of the left and right leg receiving portion angles C ₂ and D ₂ is opposite to the previous left and right leg receiving portion angles C ₀ and D ₀ is that the medical table 31 is clockwise when viewed from above. Is positive and the counterclockwise direction is negative, the directions of the leg closing operations of the leg receiving portions 43a and 43b are opposite to each other.

Next, at step f6, the signal processing circuit 233
Reads the other inclination angle B ₂ rewritten in step f1 in the memory 234, the other inclination angle B ₂ it is determined whether or not smaller than the inclination angle B ₀ last in step f7,
Other inclination angles B ₂ in step f9, it is determined whether or not greater than the inclination angle B ₀ of the last time when another inclination angle B ₂ is larger than the inclination angle B ₀ last. If the other inclination angle B ₂ is smaller than the previous inclination angle B ₀ , the process proceeds to step f11, and the signal processing circuit 233 performs the processing in step f11.
1 reads the other vertical position A ₂ that is newly rewritten in the memory 234, the other upper and lower positions A ₂ it is determined whether or not smaller than the vertical position A ₀ in the last at step f12, the other vertical position A _2, it is determined whether the whether the other of the upper and lower positions a ₂ in step f14 if greater than the vertical position a ₀ is larger than the vertical position a ₀ in the previous upper and lower other vertical positions a ₂ is the previous wherein if the position A is smaller than ₀ step a1
(Refer to FIG. 13).

In step f7, if the other inclination angle B ₂ is smaller than the previous inclination angle B ₀ , the signal processing circuit 233 determines in step f8 that the standing signal is the other inclination angle B ₂ is the previous inclination angle B 0. Output until B ₀ or less, back plate 3
5 is erected. If the other inclination angle B ₂ is smaller than the previous inclination angle B _{0 in} step f9, the signal processing circuit 233 determines in step f10 that the other inclination angle B ₂ is equal to or greater than the previous inclination angle B _0. , And the back plate 35 is tilted. If still the other vertical position A ₂ in step f12 is smaller than the vertical position A ₀ in last time,
The signal processing circuit 233 in step f13 and outputs the up signal to the other of the upper and lower positions A ₂ falls below the vertical position A ₀ of the previous, raising the back plate 35. Further, step f14
When another vertical position A ₂ is smaller than the vertical position A ₀ in the last in the signal processing circuit 233 in step f15 output lowering signal to the other of the upper and lower positions A ₂ is the previous vertical position A ₀ or less Then, the back plate 35 is lowered.

Referring to FIG. 17, in step b2 (see FIG. 13), when the set operating section 241 is operated and turned on, the process proceeds to step g1, where the tilt angle of the back plate 35, that is, the tilt angle detection at the present time is detected. It is determined whether or not the leg opening start inclination angle B _X when starting leg opening operation of each leg receiving portion 43a, 43b detected by the device 118 is smaller than the limit inclination angle B ₁ stored in the memory 234. If it is determined that the leg opening start inclination angle B _X is smaller than the limit inclination angle B ₁ , the setting operation unit 24 is set in step g2.
1, a new vertical position A ₁ , a tilt angle different from the vertical position A ₀ , the tilt angle B ₀ , the right leg receiving portion angle C _0, and the left leg receiving portion angle D ₀ already stored in the memory 234. B
_1, stores the right leg receiving portions angle C ₁ and the left leg receiving portion angle D _1, the flow returns to step a1 (see FIG. 13).

Referring to FIG. 18, when the erecting operation of back plate 35 is started in step e8 (see FIG. 15),
At step h1, the leg receiving portion angles C ₁ and D ₁ of the left and right leg receiving portions 43a and 43b are read from the memory 234 into the signal processing circuit 233, and at step h2, the right leg receiving portion angle C is read.
_It is determined whether or not ₁ is greater than the previous leg receiving portion angle C _{0. If} the new right leg receiving portion angle C ₁ is greater than the previous right leg receiving portion angle C ₀ , signal processing is performed in step h3. The circuit 233 converts the right leg receiving portion closing signal into a new right leg receiving portion angle C.
₁ outputs to below the previous right leg receiving portions angle C _0, thereby閉脚operated right leg receiving portions 43a. In the case the new right leg receiving portions angle C ₁ is less than the right leg receiving portions angle C ₀ of the last time, the process proceeds to step h4. This together with the signal processing circuit 233 determines whether a new left leg receiving portion angle D ₁ at step h5 is smaller than the left leg receiving portion angle D ₀ of the last,
If the new left leg receiving portion angle D ₁ is larger than the previous left leg receiving portion angle D ₀ , the left leg receiving portion closing signal is converted to the new left leg receiving portion angle D ₁ in step h6. receiving unit angle D ₀ output until above, the left leg receiving portion 43b is閉脚operation.

In step h4, the signal processing circuit 23
3 indicates that the new inclination angle B ₁ is the inclination opening degree B _X for closing the leg.
It is determined whether or not it is larger than the above. If it is larger, this determination is continued. If it is smaller, a signal for pulling out the waste receiving tray is output until the forward position detector 174 detects it in step a7. To protrude. In step h8, whether new right leg receiving portions angle C ₁ is less than the right leg receiving portions angle C ₀ of the previous time is determined, the new right leg of the right leg receiving portions open leg signal if small Receiving part angle C
₁ outputs until the last right leg receiving portions angle C ₀ or more, is open leg operated right leg receiving portions 43a. In the case the new right leg receiving portions angle C ₁ is greater than the right leg receiving portions angle C ₀ of the previous moves to step h10. In step h11,
Whether a new left leg receiving portion angle D ₁ is smaller than the left leg receiving portion angle D ₀ of the previous time is determined, the signal processing circuit 233 at step h12 when small new left leg receiving portion open leg signals a left leg receiving portion angle D ₁ is output until the following left leg receiving portion angle D ₀ of the previous, to open leg operated left leg receiving portion 43b. In the case the new left leg receiving portion angle D ₁ is smaller than the left leg receiving portion angle D ₀ of the last time, the process proceeds to step h10.

[0066] In step h10, whether a new tilt angle B ₁ is smaller than the inclination angle B ₀ of the previous time is determined, and if smaller continue this determination, the back plate at step h13 is the greater After stopping the standing motion of 35,
The process returns to step a1 (see FIG. 13).

Referring to FIG. 19, in step e9 (see FIG. 15), after the back plate 35 starts the tilting operation by the signal processing circuit 233, in step i1, the right and left leg receiving portion angles C ₁ and D are set. ₁ is read from the memory 234, and the waste receiving tray withdrawal signal is output until the forward position detector 174 detects the waste receiving tray at step i2, so that the waste receiving tray 54 is projected. In step i3, a new right leg receiving portion angle C
_It is determined whether or not ₁ is smaller than the previous right leg receiving portion angle C _0. If smaller, the signal processing circuit 233 is determined in step i4.
Outputs to the right leg receiving portions open leg signals a new right leg receiving portions angle C ₁ is the previous right leg receiving portions angle C ₀ or more, is open leg operated right leg receiving portions 43a, when large Step i
Move to 5. In step i6, a new left leg receiving portion angle D
_It is determined whether or not ₁ is larger than the previous left leg receiving portion angle D0. If it is larger, the signal processing circuit 23 is determined in step i7.
3 outputs the left leg receiving portion open leg signal until a new left leg receiving portion angle D ₁ is the previous left leg receiving portion angle D ₀ or more, is open leg operated left leg receiving portion 43 b, the new If the left leg receiving portion angle D ₁ is smaller than the left leg receiving portion angle D ₀ of the previous moves to step i5.

[0068] At the step i5, whether new right leg receiving portions angle C ₁ is greater than the right leg receiving portions angle C ₀ of the previous time is determined, the signal processing circuit 233 in step i8 if large right Outputting the leg receiving portion closing signal until the new right leg receiving portion angle C ₁ becomes less than or equal to the previous right leg receiving portion angle C ₀ ;
The right leg receiving portions 43a is閉脚operation and when new right leg receiving portions angle C ₁ is less than the right leg receiving portions angle C ₀ of the previous moves to step i9. The new left leg receiving portion angle D ₁ at step i10 is determined is or smaller or not than the left leg receiving portion angle D ₀ of the last, if small steps i11
In output until the left leg receiving portion閉脚signal a new left leg receiving portion angle D ₁ falls below the left leg receiving portion angle D ₀ of the last, the left leg receiving portion 43b is閉脚operation, receives a new left leg Angle D ₁
There moves to step i9 when larger than the left leg receiving portion angle D ₀ last.

In step i9, a new tilt angle B
_It is determined whether or not ₁ is smaller than the previous tilt angle B _0. If smaller, this determination is repeated. If larger, the tilting operation of the back plate 35 is stopped in step i12, and the above-mentioned step e5 (FIG. 15) is performed. returning to the reference), reads from the vertical position a ₁ to the memory 234 when the stops tilting of the back plate 35 in the same manner as described above, or vertical position a ₁ in step e6 is larger than the vertical position a ₀ in the last not determine the vertical position a ₁ raises the back plate 35 until the previous vertical position a ₀ or less when a large. The vertical position A ₁ it is determined whether or not the vertical position A ₁ in step e7 when smaller than the vertical position A ₀ last is smaller than the vertical position A ₀ in previous vertical position A ₁ in step e11 when small Is moved down to the previous vertical position _A0 or lower, and the process returns to step a1 again.

FIG. 20 is a timing chart showing the control operation of control means 230 in chronological order. When the set operation unit 241 is pressed at time t1 and the pressed state is released at time t2, the signal processing circuit 233 outputs an ascending signal to cause the back plate 35 to ascend, and outputs a tilt signal. The back plate 35 is tilted rearward, and in this way, the operation of raising the back plate 35 and tilting rearward is started.
At a time t3 when a predetermined time Δt has elapsed from the start of the upward movement of the back plate 35 and the backward tilting, the signal processing circuit 233 outputs the right leg opening signal, the left leg opening signal, and the waste receiving tray withdrawal signal. Output to each leg receiving part 43a, 4
3b, and the forward movement of the waste receiving tray 54 is started. At this time, the inclination angle B of the back plate 35 exceeds the inclination angle B _X for starting the leg opening, and the vertical position A is the set vertical position A ₀ stored in the memory 234.
, The inclination angle B is less than the set inclination angle B ₀ , and the left and right leg receiving angles C, D are also less than the set leg receiving angles C ₀ , D ₀ . The forward position detector 174 remains at the low level because the waste receiving tray 54 has not reached the forward limit position, and the retreat position detector 175 changes its detection signal to the high level when the forward operation of the waste receiving tray 54 starts. To low level.

At time t4, the ascending position A becomes the set ascending position A _0.
, The rising signal is switched from the high level to the low level, and the rising operation of the back plate 35 is stopped. When the inclination angle B reaches the set inclination angle B ₀ at time t5, the inclination signal is changed from the high level to the low level. The level is switched to the level, and the backward tilt of the back plate 35 stops. Then, when the time t6 for example right leg receiving angle C reaches the set right leg receiving portions angle C _0, MigiHirakiashi signal switched from the high level to the low level, the open leg operation of the right leg receiving portions 43a is stopped When the left leg angle D reaches the set left leg receiving portion angle D at time t7, the left leg opening signal switches from the high level to the low level, and the left leg receiving portion 43b
Of the leg stops. Thus, each leg receiving portion 43
When a and 43b are opened to the set open leg position, at time t8
When the detection signal of the forward position detector 174 switches from low level to high level to detect that the waste receiving tray 54 has reached the forward limit position, the drawer detection signal switches from high level to low level, and The forward movement of the tray 54 stops, and the examination table 31 is set to the examination position in this way.

Thereafter, at time t9, the reset operation unit 242
When the pressing operation is released at time t10, the signal processing circuit 233 outputs a descending signal to the lifting / lowering relay 236a via the input / output circuit 235, and outputs an upright signal to the tilting relay 236b. At the same time, the lowering operation of the 35 is started and the standing operation is started. At the same time, the left and right leg closing signals are respectively output to the leg receiver relay 236c to start the leg closing operation, and the waste receiving tray is stored in the relay 236d. A signal is output to start the retreat operation of the waste receiving tray 54, whereby the detection signal of the forward position detector 174 is switched from high level to low level. Although the left and right closing signals are output to the leg receiving relay 236c at the time t10, they are output at the time t9 'before the time t10, so that the back plate 35 descends and stands up. Alternatively, the leg closing operations of the leg receiving portions 43a and 43b may be started. By closing the leg receiving portions 43a and 43b at the same time as or before the lowering of the back plate 35 and the start of the standing motion, the psychological and physical burden on the patient can be reduced.

Further, at time t11, the inclination angle B of the back plate 35
Reaches the set opening angle B _X at the next time t12, when the angle B reaches the set angle B ₀ , the rising signal changes from the high level to the low level, and the rising operation of the backboard 35 stops. Then, at time t13, when the detection signal of the retreat position detector 175 switches from low level to high level and the waste receiving tray 54 reaches the retreat limit position, the storage signal changes from high level to low level, and the waste receiving tray The retreat operation of 54 is stopped. Thereafter, when the right leg receiving portion angle C reaches the set right leg receiving portion angle C ₀ at time t14, the right leg closing signal changes from high level to low level, and the right customer receiving portion 43
with a in閉脚operation is stopped, when at time t15 left leg receiving portion angle D reaches the set left leg receiving portion angle D _0, left閉脚signal changes from high level to low level, the left leg receiving portion 43b閉脚operation is stopped, further vertical position a at time t16 reaches the set upper and lower positions a _0, down signal changes from high level to low level, the downward movement of the back plate 35 is stopped, backward in time t17 The detection position of the position detector 175 changes from the high level to the low level, and the waste receiving tray 54 stops the retreating operation.
Returns from the consultation position to the sitting position.

As described above, when the examination table 31 shifts from the sitting position to the receiving position and returns from the receiving position to the sitting position, a plurality of operations are started and stopped at the same time. Short, which can also reduce the time required for testing and treatment.

As shown in FIG. 21, in the state where the inclination angle B does not reach the inclination angle B _X for starting the leg opening, that is, in the state of the low level, the set operation section is pressed and the set operation section 2 is pressed.
When 41 is pressed, the vertical position A, the inclination angle B at that time
When the reset operation unit 242 is pressed, the vertical position A ₀ , the inclination angle B _0, and the leg receiving unit angles C ₀ , D ₀ stored in the memory 234 in advance are stored. In the state where the inclination angle B has not reached the opening angle B _X for starting the legs, that is, in the state of the high level, even if the memory switch is pressed and the set operation part 241 is pressed, the Vertical position A, inclination angle B, and leg receiving part angles C and D
Are not stored in the memory 234, but only when the reset operation part 242 is pressed, the vertical position A ₀ , the tilt angle B _0, and the leg receiving part angles C ₀ ,
It can be reset to D _0.

In the above-described embodiment, only one type of the vertical position A, the tilt angle B and the leg receiving angles C and D are set in the memory 234 by one set operation unit 241. As another embodiment of the present invention, a plurality of set operation sections 241 are provided, and a plurality of store areas are also provided in the memory 234, so that a plurality of types of vertical positions A, inclination angles B, and leg receiving section angles C and D are provided. May be set. For example, in a case where two set operation units are provided, a step of determining whether the second set operation unit is turned on is interposed between step a3 and step a4 in FIG. In this case, before the step e2 in FIG. 15, the second vertical position A ₂ , the tilt angle B ₂ , and the leg receiving portion angles C ₂ , D ₂ are set to the previous set values A by operating the second set operation unit. ₀ , B
₀ , C ₀ and D ₀ are rewritten in place of the next step e2.
In new inclination angle B ₂ is read in, it is handled similarly below. Also in FIG. 17, the new inclination angle D ₂ and the leg opening start inclination angle B _X are compared in step g1, and when the inclination angle B ₂ is larger than the leg opening start inclination angle B _X ,
Returning to step a1 in FIG. 13, when smaller, the new set values A ₂ , B ₂ , C ₂ , and D ₂ are stored in the memory 234 in step g2.
Is stored. Further, a step for determining whether or not the second set operation unit is turned on is inserted between steps b2 and b3 in FIG. 13. If the second set operation unit is turned on, the process proceeds to step g1 in FIG. It is compared with the open leg starting gradient angle B _X on. If the second set operation unit has not been turned on, the process proceeds to the next step B3, and it is determined whether the reset operation unit 242 has been turned on.

FIG. 22 is a side view of an obstetrics and gynecology examination table 31a showing another embodiment of the present invention, and FIG. 23 is a side view showing a state in which the examination table 31a is operated to the examination position.
In the examination table 31a, a support table 255 is supported on a base 254 so as to be rotatable around a vertical axis 256. The movable arm 4 is provided on the support base 255 so as to be able to swing up and down.
58 are provided. A back plate 261 integrally formed with a seat 260 is connected to an upper end of the lifting support base 258 via a bracket 259 so as to be tiltable about a horizontal axis 262. With respect to such an examination table 31a as well, the control means 230 as described above can control the lifting and lowering and tilting operations of the back plate 261 and the opening and closing operations of the respective leg receiving portions 263, and also from the sitting position shown in FIG. 24, the configuration above the fixed support 255 is rotated about 90 degrees about the vertical axis 256 to prevent the patient from seeing the surgeon or caregiver. May be led. Such a configuration can also reduce the psychological burden on the patient.

As still another embodiment of the present invention, the present invention can be suitably applied not only to an obstetrics and gynecology examination table but also to an examination table or a medical table used in urology, anus, etc. .

Further, according to the present invention, the pivot axis of the pair of leg supports passes through the vicinity of one end of the back plate with respect to the virtual vertical plane which divides the back plate approximately symmetrically into two as described above. Vertically intersecting, on a plane inclined in a direction away from the back plate toward the other end of the back plate from both left and right sides near one end of the back plate, each extension line of the rotation axis is They are arranged to intersect on a virtual vertical plane. Each of the leg receiving bases is opened and closed by the opening and closing means in a direction approaching and moving away from each other about the rotation axis, so that the seated patient can be opened or closed.

For example, when the mother looks at the anus while changing the baby's diaper, the legs are not opened even if the legs are forcibly opened to the left and right. You can easily open your legs,
Moreover, for the surgeon, a wide field of view can be secured without unnecessarily opening the legs at a large angle. For this purpose, the rotation axis is set so as to open so as to raise the position of the knee. Further, since the back plate is tilted, the weight is not applied to the leg support, so that the legs can be opened more smoothly. In addition, even when the legs are closed as described above, since the rotation axis of the leg support is set so as to close while lowering the position of the knee, the base end side of each leg support immediately before closing, as in the above-described conventional technique. The inside edge of the patient's buttocks does not move upward from the sides of the buttocks, and does not lift the buttocks of the patient from below to the other side. There is no anxiety or discomfort that the back of the base is pinched by each leg support, and the inconvenience and discomfort do not cause the patient to move to sit down again, and safety during descent. Is improved.

[0081]

According to the first aspect of the present invention, the back plate and the pair of leg receiving portions are tilted rearward while being lifted by the lifting / lowering means, and a predetermined time has elapsed from the start of the rising and the backward tilting. After the time elapses or after displacing to a predetermined position, each leg receiving portion starts the leg opening operation by the opening / closing means. Therefore, at the beginning of the leg-spreading movement of each leg receiver, the patient's center of gravity has moved backwards, so that each leg receiver receives little of the patient's weight, for example, only slightly on the knees. In addition, it is possible to eliminate the disadvantage that the legs are forcibly opened as in the related art. In addition, compared to the case where each leg receiving portion starts the leg opening operation at the same time as the rise of the back plate and the start of the backward tilt, it is possible to reduce the stimulus to the shame of suddenly opening the leg for the patient, thereby. The psychological burden on the patient can be reduced.

According to the second aspect of the present invention, the back plate is tilted forward by the tilting means while being lowered by the lifting / lowering means, and each leg receiving portion is opened and closed almost simultaneously with the start of the downward movement and the forward tilting. Since the closing action is started by the means, when the examination or treatment is nearing the end, the closing action is started immediately, and the shame and fear of the patient can be eliminated almost at the same time as the end of the consultation. Can reduce the psychological and physical burden by removing the force to close the legs. Further, as described above, the leg closing operation of each leg receiving portion is started almost simultaneously with the start of the lowering of the back plate and the start of the forward tilt, so that the medical treatment time is shortened and the medical treatment time can be shortened.

According to the third aspect of the present invention, a waste receiving tray is provided in the vicinity of one end of the back plate, and the waste receiving tray advances substantially simultaneously with the opening of each leg receiving portion, and moves forward. Since it protrudes from the vicinity of one end, the back plate is retracted to the back side near the one end of the back plate in the upright sitting position, so that the waste receiving tray does not obstruct the patient and the operator, and each leg receiving portion is In a position to receive filth with the legs open,
In other words, it is arranged automatically, so that it is not necessary for the operator or assistant to operate the waste receiving tray separately from the lifting operation of the back plate and the backward tilting operation and the opening operation of each leg receiving portion, which is convenient. Be improved.

According to the fourth aspect of the present invention, a waste receiving tray is provided near one end of the back plate, and the waste receiving tray starts the lowering of the back plate or the forward tilting of the back plate. And at the same time, retreat to the back side near one end of the back plate. Therefore, the waste receiving tray is prevented from coming into contact with the base or the floor of the medical examination table when the backboard stands up, and it is necessary for the operator or assistant to separately perform an operation for retracting the waste receiving tray. And convenience is improved.

According to the fifth aspect of the present invention, when the load of the opening / closing means reaches a predetermined value by the load detecting means, the opening / closing operation of each leg receiving portion by the opening / closing means is stopped and decelerated or increased. Speed up. This eliminates the problem that the patient's leg is opened or closed with excessive force. Therefore, even for elderly patients and patients with impaired hip joints, the legs are not forced to open or close, and the psychological and physical burden is reduced.

According to the present invention, when the load on any one of the leg receiving portions reaches a predetermined value,
Since the opening / closing operation of at least one of the leg receiving portions is stopped or decelerated, even if the patient has a failure in only one of the left and right hip joints, the one leg receiving portion or both of the two leg joints are disabled. The opening / closing operation of the receiving portion is stopped or decelerated, thereby preventing the leg from being forcibly opened or closed.

[Brief description of the drawings]

FIG. 1 is an obstetrics and gynecology examination table 31 according to an embodiment of the present invention.
FIG.

FIG. 2 is a side view of the examination table for obstetrics and gynecology 31.

FIG. 3 is a front view of the examination table 31a in a state where the respective leg receiving portions 39a and 39b are closed.

FIG. 4 is a plan view of the examination table 31 in a state where each leg receiving portion 39a, 39b is closed.

FIG. 5 is a front view of the examination table 31 in a state where the respective leg receiving stands 39a and 39b are opened.

FIG. 6 is a plan view of the examination table 31 in a state where the respective leg receiving stands 39a and 39b are opened.

FIG. 7 is a partial sectional view showing the internal structure of the examination table 31.

FIG. 8 is a perspective view showing the appearance of the tilting means 45 and the elevating means 46.

FIG. 9 is a sectional view showing a specific configuration of one drive source 56b of the opening / closing means 47.

10 is a cross-sectional view of the driving source 56b viewed from below in FIG.

FIG. 11 shows tray driving means 181 of the waste receiving tray 54.
FIG. 5 is a partial perspective view of FIG.

FIG. 12 shows a control unit 230 for controlling the operation of the examination table 31.
FIG. 2 is a block diagram showing an electrical configuration of the embodiment.

FIG. 13 is a flowchart for explaining a control operation of the examination table 31 by the control means 230.

FIG. 14 is a flowchart for explaining the control operation of the examination table 31 by the control means 230.

FIG. 15 is a flowchart for explaining the control operation of the examination table 31 by the control means 230.

FIG. 16 is a flowchart illustrating a control operation of the examination table 31 by the control unit 230.

FIG. 17 is a flowchart for explaining a control operation of the examination table 31 by the control means 230.

FIG. 18 is a flowchart for explaining a control operation of the examination table 31 by the control means 230.

FIG. 19 is a flowchart for explaining a control operation of the examination table 31 by the control means 230.

FIG. 20 is a timing chart showing the control operation of the control means 230 in chronological order.

FIG. 21 is a flowchart for explaining that set input cannot be performed in a state where the inclination angle B of the back plate 35 does not reach the inclination angle B _X for starting a leg opening.

FIG. 22 is a side view showing an obstetrics and gynecology examination table 31a according to another embodiment of the present invention.

23 is a side view of the examination table 31a shown in FIG. 22 in a consultation position.

FIG. 24 is a simplified plan view showing a typical prior art obstetrics and gynecology examination table 1;

25 is a perspective view of the examination table 1 shown in FIG. 24, and FIG.
5 (1) shows the examination table 1 in the sitting position, and FIG. 25 (2) shows the examination table 1 in the reception position.

[Explanation of symbols]

 31, 31a Obstetrics and gynecology examination table 35 Back plate 38 Seat 39a, 39b Leg support 43a, 43b Leg support 45 Tilt means 46 Elevating means 47 Opening / closing means 50 Foot switch 54 Soil receiving tray 98 Tilt cylinder 118 Tilt angle detection 133 Lifting cylinder 134 Lifting amount detector 170 Open limit position detector 171 Closing limit position detector 173 Rotation amount detector 174 Forward position detector 175 Retreat position detector 181 Tray driving means 230 Control means 233 Signal processing circuit 234 Memory 236 Drive circuit 237 Overload monitoring circuit 241 Set operation unit 242 Reset operation unit 243 Ascending operation unit 244 Lowering operation unit 245 Standing operation unit 246 Tilt operation unit 247 Leg open operation unit 248 Leg closing operation unit 249 Tray advance operation unit 250 Tray retreat operation unit

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takushi Miyamoto 680 Higashihamanamachi, Fushimi-ku, Kyoto-shi, Kyoto Inside Morita Manufacturing Co., Ltd.

Claims (6)

[Claims] 1. A back plate that supports at least the back of a patient, a pair of leg receiving portions rotatably provided on both left and right sides near one end of the back plate near the waist of the patient, a back plate and a pair of legs. The medical treatment table includes a tilting unit that tilts the receiving unit about the horizontal axis, a lifting unit that moves the tilting unit up and down, and an opening and closing unit that opens and closes the pair of leg receiving units in directions that approach and separate from each other. After the back plate is tilted backward by the tilting means while being raised by the lifting means together with the pair of leg receiving portions, and after a predetermined time has elapsed from the start of the upward and backward tilting, or after being displaced to the predetermined position. A medical table, wherein the opening / closing means starts the leg opening operation of each leg receiving portion. 2. A back plate for supporting at least the back of the patient, a pair of leg receiving portions rotatably provided on both left and right sides near one end of the back plate near the waist of the patient, a back plate and a pair of legs. The medical table includes a tilting unit that tilts the receiving unit about the horizontal axis, a lifting unit that moves the tilting unit up and down, and an opening and closing unit that opens and closes the pair of leg receiving units in directions that approach and separate from each other. The back plate is tilted forward by the tilting means while being lowered by the elevating means together with the pair of leg receiving parts, and the opening and closing means starts the closing operation of each leg receiving part almost simultaneously with the start of the lowering and the forward tilting. Clinic that is characterized by 3. A waste receiving tray is provided in the vicinity of one end of the back plate so as to protrude from the vicinity of one end of the back plate almost simultaneously with the opening of each leg receiving portion by the opening / closing means. The medical examination table according to claim 1, characterized in that: 4. The back side near one end of the back plate near the one end of the back plate almost simultaneously with the start of lowering of the back plate by the elevating means or the start of tilting of the back plate forward by the tilting means. 3. The medical couch according to claim 2, wherein a receding waste receiving tray is provided. 5. The opening / closing means is provided with a load detecting means for detecting a load on each leg receiving portion, and when the load detected by the load detecting means reaches a predetermined value, each leg is actuated by the opening / closing means. The medical examination table according to any one of claims 1 to 4, wherein the opening / closing operation of the receiving portion is selectively switched to one of stop, deceleration, and acceleration. 6. The opening / closing means stops the opening / closing operation of at least one of the leg receiving parts when one of the leg receiving parts detected by the load detecting means reaches the predetermined value. The medical couch according to claim 5, wherein the speed is reduced.