JP3270091B2 - Operating table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating table, and more particularly to an operating table capable of easily and safely obtaining a position required for an operation.

[0002]

2. Description of the Related Art Conventionally, a main table for supporting a central portion of a body constituting an operating table used in an operating room of a hospital and a sub-table connected before and after the main table are linked by a hydraulic drive. In such a case, a plurality of compound valves are simultaneously operated to simultaneously operate a plurality of hydraulic drive devices arranged in parallel corresponding to the plurality of compound valves.

[0003]

However, due to the nature of the fluid, the operating table of the above-mentioned type cannot perform an average operation due to differences in the position of the patient or the weight of the patient, and sometimes poses a dangerous position for the patient. The operator has to be very careful because it can be in a state.
For this reason, empirically, a method of giving a difference in the operating speed (for example, a method of giving a resistance to a hydraulic circuit) has been generally performed, but this method has not been a definitive solution. In addition, a powerful pump (a hydraulic drive device, which is generally large) that can ignore the difference in the balance between the patient's riding position and the patient's weight, etc. is also used in a device installed in a limited space such as an operating table. It could not be adopted in terms of size.

[0004] In order to ensure the safety and ease of operation of the patient, it is essential to operate the main table and the sub-table at a balanced speed. The balance of operation must not be disturbed by the riding position and the like, and the size of the device must not be significantly larger than that of a conventional operating table.

The present invention has been made in order to solve the above problems, and provides an operating table capable of realizing operation at a balanced speed regardless of the weight of the patient or the position on which the patient rides. The purpose is to:

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems
The invention according to claim 1 is a surgical table having a back plate (10) rotatably supported on at least one side end of the main table plate (9) , wherein the main table plate (9) is vertically turned. Let
The first hydraulic circuit that drives the vertical cylinder (6) to be tightened
(23a, 23b, etc.) and the back plate (10) up and down twice
A second hydraulic circuit (23c, 23d, etc.) for driving a back plate cylinder (11) to be moved;
(6) and a third hydraulic circuit (23e, 23f, etc.) that connects the back plate cylinder (11) in series and drives them simultaneously,
The first control valve (19) , the second control valve (20) and the third control valve (21) are connected in parallel to one oil supply source (17) via the first control valve (19). )
And the vertical cylinder (6) is driven alone to
The table plate (9) is turned upright and the second control valve (20)
To operate the back plate cylinder (11)
Driven independently to rotate the back plate (10) up and down,
Vertical operation cylinder by operating the control valve (21)
(6) and the back plate cylinder (11) are driven simultaneously.
And turn the main table board (9) vertically so that the head side is up.
While rotating the back plate (10) downward,
The board (9) is turned upside down with the head side down, and
0) was rotated upward . Claims
The invention according to Claim 2 is characterized in that the third control valve (21) controls the vertical
Roller cylinder (6) and back plate cylinder (11) simultaneously
The main table plate (9) and the back plate
(10) is in the same direction above or below the horizontal line
The operation according to claim 1, wherein the operation is rotated at an equal angle (α).
It was a stand.

[0007]

According to the present invention, when the main table plate (9) is operated, the first control valve (19) is controlled to operate only the first hydraulic circuits (23a, 23b, etc.) and the vertical rotation is performed. Shirin
Only the hopper (6) is operated, and the back plate cylinder (11) is not operated.

When operating the back plate (10) , the second
The control valve (20) is controlled to control the second hydraulic circuit (23c, 23c).
Only the back cylinder (11) is operated by operating only d) and the vertical cylinder (6) is not operated. Main te
When the cable plate (9) and the back plate ( 10) are linked, the third control valve (21) is controlled to control the third hydraulic circuit (23).
e, 23f, etc.) to operate the vertical cylinder (6) and the spine.
The plate cylinder (11) is operated simultaneously.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a side view of an operating table according to an embodiment of the present invention, and FIG. 2 shows a plan view.

As shown in FIGS. 1 and 2, a caster 2 and a hydraulically actuated brake 3 are provided before and after the lower surface of the footrest 1, and a column 4 which can be raised and lowered by hydraulic pressure is provided on the upper surface of the footrest 1. ing. On the upper part of the support column 4, a rollover cylinder 5 for rolling over (rotating about a longitudinal central axis in FIG. 2) a main table plate 9 constituting a main table, and a vertical rollover of the main table plate 9 by hydraulic pressure (see FIG. In FIG. 1, a vertical rotation cylinder 6 for rotating around a vertical rotation shaft 7 is provided, and this vertical rotation cylinder 6 also serves as a central axis when the horizontal rotation cylinder 5 rolls over. A vertical rotation shaft 7 is provided at an upper portion of the vertical rotation cylinder 6, and side plates 8 are fixed to both ends of the vertical rotation shaft 7,
A main table plate 9 is stretched between these side plates 8.
A back plate cylinder 11 for operating a back plate 10 serving as a sub-table is provided inside the side plate 8, and the back plate 10 is rotatable about a shaft 12 as a rotation axis. When the NB ₂ is loosened, a pillow 14 whose rotation can be adjusted is attached.

[0011] The right end portion of the side plate 8 loosening the knob NB ₁ rotating adjustable leg plate 13 is provided. A flat plate 15 to which attached parts and the like can be attached is fixed to the sides of these tables (main table plate 9, back plate 10, leg plate 13). An operation box SW for instructing various operations of the operating table is attached to the upper surface side of the leg base 1 via a cord.

FIG. 3 is a front view of the operation box SW. Operation box SW includes a Positions switches S ₁ to S ₁₀ indicating various postures, the mobile switch S ₁₁ to movable operating table by releasing the braked 3, each table which is inclined as described below simultaneously and the return switch S ₁₂ to return,
When the various switches S ₁ and S ₁₂ are turned on and operated, the switches S are simultaneously turned on to ensure safety.
_13, and a power lamp S ₁₄ indicating that the power is turned on operating table.

FIG. 4 shows a circuit diagram of a hydraulic device applied to the operating table of the present embodiment. As shown in FIG. 4, a hydraulic circuit having a tank 16 containing hydraulic oil, a pump motor 17 serving as a driving source, and a relief valve 18 for limiting the pressure of the hydraulic oil is provided with a "first control valve" for vertical rotation. The composite valve 19 and the “second
A composite valve 20 for operating the back plate, which is a "control valve", a composite valve 21 for interlocking, which is a "third control valve", and other composite valves for operation are connected in parallel.

The vertical rotation composite valve 19 includes a four-port switching valve 19c, and electromagnets 19 mounted on the left and right of the valve 19c.
a, 19b, pilot check valves 19d, 19e, which open in conjunction with each other via pipes 33, 34, and these check valves 1
Check valves 19f, 19 connected to 9d, 19e respectively
g, throttle valves 19h and 19i arranged in parallel with these check valves 19f and 19g, and connection holes 19j and 19k for connecting the composite valve 19 to the outside. This configuration is the same for the back plate operating composite valve 20 and the interlocking composite valve 21. That is, the electromagnets 20a, 20
b, 21a, 21b, switching valves 20c, 21c, pilot check valves 20d, 20e, 21d, 21e, check valves 20f, 20g, 21f, 21g, throttle valves 20h , 20
i, and connection holes 20j, 20k, 21j, and 21k.

Each of the composite valves 19, 20, 21 is a copper tube 2
3 connects to a connection hole on the piping block 22. That is, the first connection hole 19j of the vertical rotation composite valve 19 is connected to the first connection hole 22a of the piping block 22 by the copper pipe 23a, and the second connection hole 19k of the composite valve 19 is connected to the copper pipe 23.
b is connected to the second connection hole 22b of the piping block 22. First connection hole 20j of compound valve 20 for back plate operation
Is connected to the third connection hole 2 of the piping block 22 by the copper pipe 23c.
2c, the second connection hole 20k of the composite valve 20 is connected to the fourth connection hole 22d of the piping block 22 by a copper pipe 23d. First connection hole 21j of interlocking compound valve 21
Is connected to the first connection hole 22a by a copper tube 23e, and the second connection hole 21k of the composite valve is connected to the third connection hole 22c by a copper tube 23f. The second connection hole 22b and the fourth connection hole 22d of the piping block 22
They are connected to each other by 3g.

Each hydraulic cylinder 6, 11 is connected to a hose 24.
Is connected to the connection hole on the piping block 22. That is, the left port 6a of the vertical cylinder 6
Is connected to the connection hole 22a by a hose 24a,
The port 6b on the opposite side is connected to the connection hole 22 by a hose 24b.
b. A piston 6c is housed in the vertical rotation cylinder 6, and a rack 6d is formed on the piston 6c. A pinion 30a of a rotary plate 30 attached to the vertical rotation shaft 7 meshes with the rack 6d. Therefore,
As the piston 6c moves left and right, the vertical rotation shaft 7 rotates. The copper tubes 23a, 23b, hoses 24a, 2
4b and the like constitute a “first hydraulic circuit”, and the copper pipe 23c,
23d, hoses 24c, 24d, etc. constitute a "second hydraulic circuit", and the copper tubes 23e, 23f, 23g, the hose 24
a, 24b, 24d, 24c, etc. constitute a "third hydraulic circuit".

The left port 11a of the back plate cylinder 11 is connected to the connection hole 22c by a hose 24c, and the opposite port 11b is connected to the connection hole 22d by a hose 24d. The back plate cylinder 11 has a piston 32.

Next, the operation of the operating table configured as described above includes the operation of raising the head by operating the vertical cylinder, the operation of lowering the head by operating the vertical cylinder,
Lifting operation of only the back plate, lowering operation of the back plate only,
The operation in the form of the letter "", the operation in the form of the letter "V", and other operations will be described separately. Incidentally, as a precondition for the above operation, it is assumed that the power lamp S ₁₄ of the operation box SW is turned. The operation of raising the head by the operation of the vertical rotation cylinder (Fig. 5
Referring) In this case, to turn on the Positions switch S _1. As a result, the pump motor 17 operates, and the right electromagnet 19b
, The switching valve 19c is actuated rightward in the figure, the hydraulic fluid flows into the pilot check valve 19d side, and while the pilot pressure opens the pilot check valve 19e with the pilot pressure, the pilot check valve 19c operates by itself. 19d, the check valve 19f is opened, flows into the copper pipe 23a, and flows into the connection hole 2 of the piping block 22.
The pressure in the copper tube 23e and the inside of the hose 24a are set to the same pressure via 2a. At this time, since the pilot check valve 19e is open, the piston in the vertical cylinder 6 moves to the right in the drawing, and the entire table (main table plate 9, back plate 10, leg plate 13) is counterclockwise. In the vertical direction.

That is, the vertical cylinder 6 is connected to the hose 24a.
Hydraulic oil flows into the left port 6a, moves the piston by pressure, and the hydraulic oil in the vertical cylinder 6 which is discharged with the hydraulic oil flows through the hose 24b connected to the right port 6b. 2 passes through the copper tube 23b connected to the connection hole 22b and passes through the second connection hole 1 of the composite valve 19.
From 9k, it flows into the compound valve 19 for vertical rotation. The speed of the flowing hydraulic oil is controlled by the throttle valve 19i, and returns to the tank 16 through the pilot check valve 19e and the switching valve 19c. At this time, since the pilot check valve 21d of the composite valve 21 is closed, the hydraulic oil is not moved in the copper pipe 23, and the pilot check valve 21e of the composite valve 21 and the pilot check valve 21e of the composite valve 20 are not moved. Since the pilot check valve 20d is closed, the hydraulic oil does not flow into the back plate cylinder 11 and the pilot check valve 20e of the composite valve 20 is also closed. Since the hydraulic oil is not moved, all the hydraulic oil discharged from the vertical cylinder 6 is controlled by the throttle valve 19 h, and all the hydraulic oil supplied from the pump motor 17 is supplied to the vertical cylinder 6. Will be used. In this way, it is possible to operate only the vertical rotation cylinder 6 alone and perform an operation of tilting the main table plate 9, the back plate 10, and the leg plate 13 only in the counterclockwise direction. The operation of lowering the head side by the operation of the vertical rotation cylinder ( Fig. 6
See) In this case, to turn on the posture switch S ₂ of the operation box SW. As a result, the pump motor 17 operates to excite the electromagnet 19a, thereby operating the switching valve 19c to the left in the drawing. At this time, the hydraulic fluid flows into the pilot check valve 19e, and the pilot pressure opens the pilot check valve 19d on the opposite side while opening the pilot check valve 19e and the check valve 19g by themselves. , Into the copper pipe 23 b, and the same pressure is applied to the inside of the hose 24 b communicating with the copper pipe 23 g and the connection hole 6 b of the vertical cylinder 6 via the second connection hole 22 b of the piping block 22. At this time, since the pilot check valve 19d is open, the vertical cylinder 6
The inner piston moves to the left in the figure, and vertically rotates the entire table (main table plate 9, back plate 10, leg plate 13) clockwise.

That is, the vertical cylinder 6 is moved from the hose 24b.
Hydraulic oil flows into the port 6b of the vertical cylinder 6 which moves the piston by the pressure, and is discharged in accordance with the pressure.
Hydraulic oil inside passes through a copper pipe 23 a connected to a first connection hole 22 a of a piping block 22 by a hose 24 a connected to a port 6 a of the vertical rotation cylinder 6, and passes through a first connection hole 19 j of the composite valve 19. And flows into the vertical rotation composite valve 19.
The flow of the hydraulic oil is speed-controlled by the throttle valve 19h,
It returns to the tank 16 through the pilot check valve 19d and the switching valve 19c.

At this time, since the pilot check valve 21d of the composite valve 21 is closed, the copper pipe 23e provided between the first connection hole 22a of the piping block 22 and the first connection hole 21j of the composite valve 21 is provided. Hydraulic oil is not moved inside, and the hydraulic oil discharged from the vertical rotation cylinder 6 is all controlled by the throttle valve 19 h of the composite valve 19. Further, since the pilot check valve 21e of the composite valve 21 and the pilot check valve 20d of the composite valve 20 are closed, hydraulic fluid does not flow into the back plate cylinder 11, and the pilot check valve 20
Since e is also closed, the hydraulic oil is not moved in the copper pipe 23g, so that all the hydraulic oil supplied from the pump motor 17 is used for the vertical cylinder 6. In this manner, it is possible to operate only the vertical rotation cylinder 6 alone and perform an operation of tilting the main table plate 9, the back plate 10, and the leg plate 13 only clockwise. Back plate lifting operation (see FIG. 7) In this case, to turn on the Positions switch S _5. As a result, the pump motor 17 is operated, and the switching valve 20c is operated rightward in the figure by exciting the electromagnet 20b.
The hydraulic fluid flows into the pilot check valve 20d side, and while opening the pilot check valve 20e on the opposite side by the pilot pressure, the pilot check valve 20d and the check valve 20f open by themselves, and the copper pipe The copper tube 23f flows into the hose 23c through the third connection hole 22c of the piping block 22 to have the same pressure. At this time, since the pilot check valve 20e has been opened, the piston in the back plate cylinder 11 moves to the right side in the drawing and raises the back plate.

That is, the back plate cylinder 1 is connected to the hose 24c.
Hydraulic oil flows into the first port 11a, moves the piston by pressure, and the hydraulic oil in the back plate cylinder 11 which is discharged with the hydraulic oil flows into the fourth block 11 of the piping block 22 by the hose 24d connected to the port 11b. After passing through the copper pipe 23d connected to the connection hole 22d, it flows into the back plate operating composite valve 20 through the connection hole 20k, is speed-controlled by the throttle valve 20i, passes through the pilot check valve 20e, the switching valve 20c, and the tank 16 Return to At this time, the pilot check valve 2
Since the valve 1e is closed, the hydraulic oil is not moved in the copper pipe 23f, and the pilot check valves 19d and 21d are not moved.
Since the valve d is closed, the hydraulic oil does not flow into the vertical cylinder 6 and the pilot check valve 19e is also closed, so that the hydraulic oil is not moved in the copper pipe 23g. . Therefore, all the hydraulic oil discharged from the back plate cylinder 11 is controlled by the throttle valve 20i, and all the hydraulic oil supplied from the pump motor 17 is used for the back plate cylinder 11. Thus, the back plate cylinder 11 can be operated alone only in the direction in which the back plate 10 is raised. Lowering operation of the back plate (see Fig. 8) In this case, to turn on the Positions switch S _6. As a result, the pump motor 17 is operated to excite the electromagnet 20a, so that the switching valve 20c is operated in the left direction in the drawing, and the operating oil flows into the pilot check valve 20e side, and the pilot pressure causes the pilot check valve to change. While opening 20d, the pilot check valve 20e and the check valve 20g are opened by themselves, flow into the copper pipe 23d, and the inside of the copper pipe 23g and the inside of the hose 24d are made the same pressure by the connection hole 22d. At this time, since the pilot check valve 20d is open, the back plate cylinder 11
The piston inside moves to the left in the figure and lowers the back plate.

That is, hydraulic oil flows into the port 11b from the hose 24d, moves the piston by the pressure, and the hydraulic oil in the back plate cylinder 11 which is discharged accompanying the hydraulic oil is:
Through the copper pipe 23c connected to the third connection hole 22c of the piping block 22 by the hose 24c connected to the port 11a, it flows into the back plate working composite valve 20 through the connection hole 20j, and the speed is controlled by the throttle valve 20h. , And returns to the tank 16 through the pilot check valve 20d and the switching valve 20c. At this time, since the pilot check valve 21e is closed, the hydraulic oil is not moved in the copper pipe 23f, and all the hydraulic oil discharged from the back plate cylinder 11 is the throttle valve 2.
0h is controlled. Also, since the pilot check valves 19d and 21d are closed, the hydraulic oil does not flow into the vertical cylinder 6 and the pilot check valve 19e is also closed. Since the hydraulic oil is not moved, all the hydraulic oil supplied from the pump motor 17 is used for the back plate cylinder 11. As a result, only the operation of lowering the back plate can be performed alone. The operation of the back plate in the form of “H” (see FIG. 9) That is, the operation of lowering the back plate 10 and the operation of raising the head side by the vertical rotation of the main table plate 9 are linked, and the table is set to “H”.
This is the case when the character form is used.

[0024] In this case, to turn on the Positions switch S _9. As a result, the pump motor 17 operates and the electromagnet 2
By exciting 1b, the switching valve 21c operates in the right direction in the figure, and the hydraulic oil flows into the pilot check valve 21d side, while opening the pilot check valve 21e by the pilot pressure, and The stop valve 21d and the check valve 21f are opened, flow into the copper tube 23e, and the copper tube 23a and the hose 24a are made the same pressure by the first connection hole 22a of the piping block 22. At this time, since the pilot check valve 21e is open, the hydraulic oil can flow out from the port 11a of the back plate cylinder 11, and the hydraulic oil discharged from the right port 6b of the vertical cylinder 6 , The piston of the back plate cylinder 11 is operated.

That is, the vertical cylinder 6 is connected to the hose 24a.
Hydraulic fluid flows into the port 6a, and the vertical rotation piston is moved to the right side in the drawing by pressure to operate the vertical rotation, and the port 6b
Hydraulic oil discharged from hose 24b, copper tube 23g,
Port 11 of back plate cylinder 11 through hose 24d
b flows into the cylinder. The inflowing hydraulic oil moves the piston of the back plate cylinder 11 to the left side in the figure by pressure to operate the back plate, and the hydraulic oil discharged from the port 11a passes through the hose 24c, the copper pipe 23f, and the connection hole 21k.
The flow further flows into the interlocking compound valve 21, the speed of which is controlled by the throttle valve 21i, and returns to the tank 16 through the pilot check valve 21e and the switching valve 21c. At this time, the composite valve 19
The pilot check valve 19d is closed, so the copper pipe 2
The movement of the hydraulic oil within 3a is not performed, and all of the hydraulic oil supplied from the pump 17 flows into the vertical rotation cylinder 6. In addition, the pilot check valve 1 of the composite valve 19
9e and the pilot check valve 20e of the composite valve 20 are closed, so that the hydraulic oil does not move in the copper pipes 23b and 23d, and all of the hydraulic oil discharged from the vertical cylinder 6 is transferred to the back plate cylinder. 11 will flow. Further, since the pilot check valve 20d of the composite valve 20 is also closed, the movement of the hydraulic oil in the copper pipe 23c is not performed.
The hydraulic oil discharged from the back plate cylinder 11 is all controlled by the throttle valve 21i of the composite valve 21. This enables the vertical rotation and the back plate to be linked, and furthermore, the amount of hydraulic oil discharged from the vertical rotation cylinder 6, the inclination angle of the main table plate 9, and the amount of hydraulic oil required by the back plate cylinder 11. By setting the operating angle of the back plate 10 in advance, it becomes possible to perform an operation of making the table into a "H" shape at an equal angle.

That is, for example, as shown in FIG. 10, when the main table plate 9 is lowered to the left by α degrees with respect to the horizontal line H, the back plate 14 is lowered to the right by 2α degrees with respect to the horizontal line H. Next, the vertical cylinder 6 and the back plate cylinder 11 are selected. With this setting, the main table plate 9 and the back plate 14 always operate at the same angle with respect to the horizontal line H, so that patient safety is ensured. "V" -shaped operation of the back plate (see FIG. 11) That is, the operation of raising the back plate 10 and the operation of lowering the head side in the vertical rotation of the main table plate 9 are linked, and the table is formed in the "V" shape. This is the case.

[0027] In this case, to turn on the Positions switch S _10. As a result, the pump motor 17 operates and the electromagnet 2
By exciting 1a, the switching valve 21c operates in the left direction in the figure, and the hydraulic oil flows into the pilot check valve 21e side, and the pilot pressure opens the pilot check valve 21d while the pilot check valve 21d opens. Stop valve 21e, check valve 21g
, And flows into the copper tube 23f to make the copper tube 23c and the hose 24c the same pressure through the connection hole 22c. At this time, since the pilot check valve 21d is opened, the hydraulic oil can flow out from the port 6a of the vertical cylinder 6 and the hydraulic oil discharged from the port 11b of the back plate cylinder 11 is removed. The piston of the vertical cylinder 6 is operated as a supply source.

That is, hydraulic oil flows into the port 11a by the hose 24c, and the piston of the back plate cylinder 11 is moved to the right side in the figure by pressure to operate the back plate. The hydraulic oil discharged from the port 11b is discharged by the hose 24d. , Copper tube 23
g, port 6 of vertical cylinder 6 through hose 24b
b, the vertical piston is moved to the left side in the figure by pressure to operate the vertical rotation, and the hydraulic oil discharged from the port 6a passes through the hose 24a, the copper pipe 23e, and the connection hole 21j.
The flow further flows into the interlocking compound valve 21, the speed is controlled by the throttle valve 21h, and returns to the tank 16 through the pilot check valve 21d and the switching valve 21c. At this time, since the pilot check valve 20d is closed, the hydraulic oil is not moved in the copper pipe 23c, and all the hydraulic oil supplied from the pump 17 flows into the back plate cylinder 11. become. Further, since the pilot check valve 19e of the composite valve 19 and the pilot check valve 20e of the composite valve 20 are closed, the hydraulic oil is not moved in the copper pipes 23b and 23d. All of the discharged hydraulic oil flows into the vertical cylinder 6. Further, since the pilot check valve 19d is also closed, the hydraulic oil is not moved in the copper pipe 23a, and all the hydraulic oil discharged from the vertical cylinder 6 is controlled by the throttle valve 21h. . This allows the vertical rotation and the back plate to be linked, and furthermore, the amount of hydraulic oil discharged from the back plate cylinder 11, the operating angle of the back plate 10, and the amount of hydraulic oil required by the vertical cylinder 6 By setting the operating angle of the back plate 10, it is possible to perform an operation of making the table into a “V” shape at an equal angle. Other movements
When you turn the work Positions switch S ₃ or S _4, operates overturned cylinder 5, the back plate 10 and the leg plate 13 makes the left and right rollover with the main table plate 9.

When the body position switch S ₇ or S ₈ is turned on, an up / down movement cylinder (not shown) arranged inside the column 4 is operated, and the back plate 10 and the leg plate 13 move up and down together with the main table plate 9. I do.

[0030]

As described above, according to the first aspect of the present invention , the main table plate or the back plate can be independently rotated, so that the main table plate or the back plate is not affected by the weight of the patient. Operation of the third control valve.
And the back plate cylinder at the same time,
Turn the backboard downward while turning the bull board vertically so that the head side is up
Rotate or turn the main table vertically
The back plate can be turned upward while rotating
The angle between the bull plate and the back plate is in the shape of "H" or "V".
Bend the patient to the position required for surgery.
You. According to the second aspect of the invention, the main tape is formed at an equal angle.
The table and back plate operate to ensure patient safety.
Wear.

[Brief description of the drawings]

FIG. 1 is a side view of an operating table according to an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a front view of an operation box used in the embodiment.

FIG. 4 is a hydraulic circuit diagram used in the embodiment.

FIG. 5 is an operation state diagram in which the head side of the operating table is raised.

FIG. 6 is an operation state diagram in which the head side of the operating table is lowered.

FIG. 7 is an operation state diagram in which a back plate of the operating table is raised.

FIG. 8 is an operation state diagram in which a back plate of the operating table is lowered.

FIG. 9 is a view showing a state in which the operating table is operated in a “H” shape.

FIG. 10 is a principle view of operating the left and right tables at an equal angle in the case of the “H” -shaped operation.

FIG. 11 is a view showing a state in which the operating table is operated in a “V” shape.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Footrest 5 ... Horizontal rotation cylinder 6 ... Vertical rotation cylinder (main hydraulic drive) 7 ... Vertical axis 9 ... Plate (main table) 10 ... Backboard (sub-table) 11 ... Backboard cylinder (sub-hydraulic drive) 12 ... Shaft 13 ... Leg plate 14 ... Pillow 19 ... Compound valve for vertical rotation (first control valve) 20 ... Compound valve for back plate operation (second control valve) 21 ... Compound valve for interlocking (third control valve) 23a, 23b, 24a, 24b: first hydraulic circuits 23c, 23d, 24c, 24d: second hydraulic circuits 23e, 23f, 24a, 24b, 23g, 24d, 2
4c: Third hydraulic circuit

Claims (2)

(57) [Claims] 1. A surgical table having a back plate that is rotatably supported on at least one side edge of the main table plate, the main
A first hydraulic circuit for driving a vertical cylinder for vertically rotating the table plate , and a back plate series for rotating the back plate up and down;
A second hydraulic circuit for driving the Nda, and a third hydraulic circuit for driving the Tateten cylinder <br/> and back plate at the same time and the cylinder are connected in series, each of the first control valve and a second control valve Connected in parallel to one oil supply via a third control valve,
By operating the first control valve, the vertical rotation cylinder
The main table is driven vertically by driving the
Operate the control valve to separate the back plate cylinder
To rotate the back plate up and down to operate the third control valve.
Vertical cylinder and back plate cylinder by making
Drive the main table board so that the head side is raised
Rotate the back plate downward while turning it vertically or use the main table
Rotate the back plate upward while turning the plate vertically so that the head side is down
An operating table, characterized in that the operating table is adapted to be operated. 2. The vertical cylinder according to claim 3, wherein
When the table and the back plate cylinder are operated simultaneously , the main table plate and the back plate are moved upward or downward with respect to the horizontal line.
The operating table according to claim 1, wherein the operating table is rotated at an equal angle in the same direction.