JPH02121666A - Operation table - Google Patents

Abstract

PURPOSE:To realize the rising and falling, lateral turning and longitudinal turning of a table by vertically providing at three extensible means respectively capable of extending and contracting lengths on a base plate and connecting the upper end parts of the respective extensible means to the table through universal joints. CONSTITUTION:Three extensible means LE, RE, SE are vertically provided on a base plate 1 in an L-shape. A table 2 is connected to the upper ends of the respective extensible means LE, RE, SE through hook like universal joints FJ, FJ and ball-shaped universal joints BJ. The table 2 rises or falls by extending or contracting all of the extensible means LE, RE, SE in the same quantity and, by setting two extensible means LE, RE as they are while extending or contracting only the extensible means SE, the lateral turning of the table 2 is performed and, by setting two extensible means LE, SE as they are while extending or contracting only the extensible means RE, the longitudinal turning of the table 2 is performed. By this constitution, the drive mechanism of the table 2 can be simplified and miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a basic configuration for driving the table of an operating table, for example, a surgical operating table, to move up and down, roll over, and turn vertically.

B. Prior art The operating table has a table on which the patient is placed, and this table is configured to be able to move up and down, roll horizontally, and vertically so that the patient can obtain the necessary body position depending on the content of the surgery. .

This configuration has conventionally been proposed, for example, by providing an elevating mechanism on the base as shown in Japanese Patent Publication No. 61-837 ``Operating Table Go'', and connecting the uppermost part of this elevating mechanism to the table via a horizontal rotation mechanism and a vertical rotation mechanism. A spring feed mechanism and a hydraulic cylinder mechanism are used as the elevating mechanism, and the rollover and vertical rollover mechanisms employ a method in which rotational force is generated using various actuators around a rotating support shaft. The three mechanisms are installed so that they do not interfere with each other.

C1 Problems to be Solved by the Invention In order to install each mechanism for elevating, lowering, rolling, and vertically rotating so that they do not interfere with each other, a certain distance is required and the structure becomes complicated. Therefore, the operating table becomes larger and, in particular, the minimum height to the table becomes higher, which goes against the idea of lowering the operating table, and the number of parts and processing steps increase, making it expensive.

The present invention aims to provide an operating table that solves these conventional problems.

Means for Solving the 00 Problems At least three extensible means each having a length that can be expanded or contracted are erected on a base, and the upper end of each extensible means is connected to a table via a universal joint. In this case, the telescoping means has the same function as a conventional elevating mechanism.

E. Effect If the lengths of the respective expansion and contraction means are made different from each other, the heights from the top of the base to each connection point of the table will be different. This difference in height essentially allows the table to roll horizontally or vertically. The universal joint serves as a means of ensuring the appearance of this position.

F Example The present invention will be explained below according to embodiments shown in the drawings.

FIG. 1 is a diagram schematically showing the features of the operating table according to the present invention, in which (A) is a plan view, (B) is a front view, and (C) is a side view of FIG. It is a diagram.

In these figures, reference numeral 1 denotes a base plate, that is, a base portion for installing the operating table on the floor surface. Three expansion/contraction means LE, RE, and SE are erected on this base 1. The structure of the expansion/contraction means will be described later, but the expansion/contraction means LE and RE are located in the center of the base 1, and are arranged vertically on the left and right, and the expansion/contraction means SE is located on the side of LE. In other words, as is clear from figure (A), 3(
The expansion/contraction means of vl are arranged in an L-shape and stand upright.

Reference numeral 2 denotes a table (table top) on which a patient is placed, and is connected to the upper ends of each expansion/contraction means LE, RE, and SE by hook-shaped universal joints FJ, FJ and ball-shaped universal joint BJ, respectively. . These universal joints will also be described later.

The characteristic structure of the operating table according to the present invention is as described above, and by making the lengths of the respective extension/contraction means LE, RE, and SE to desired lengths and heights, the table can be raised/lowered, rolled over, and turned vertically. It is done.

That is, each of the extensible means LE, RE, and SE has a fixed frame part 3 and a movable frame part 4, as shown in FIGS. 2 and 3, and the fixed frame part 3 is fixedly installed on the base 1, The upper end of the movable frame is connected to the table 2 via universal joints FJ and BJ. A telescopic mechanism (not shown) is interposed between the fixed frame portion 3 and the movable frame portion 4 on the inside thereof. As the telescoping mechanism, for example, a structure based on a screw feed mechanism as disclosed in JP-A No. 59-222150 "Table-operated operating table" or a structure using a hydraulic cylinder is applied. . Alternatively, a single mechanism that expands and contracts by a link mechanism may be used. These telescoping mechanisms utilize electric power or hydraulic pressure and can be automatically adjusted to a desired telescoping length.

It is desirable to be able to extend or shorten the length to a desired length by operating the P3 switch (remotely), such as in the above-mentioned Japanese Patent Publication No. 61-837 ``Operating Table''. Through such operations, the movable frame portion 4 moves forward and backward relative to the fixed frame portion 3, and its length as a whole expands and contracts.

On the other hand, the universal joints FJ and BJ, which are also shown in FIGS. 4 and 5, connect the respective expansion/contraction means LE, RE, SE and the table 2 so that the table 2 can be turned horizontally or vertically. . A hook-shaped universal joint FJ is attached to the upper end of the movable frame portion 4 of the extensible means LE, RE, and this state is shown in FIG. 2 and FIG. 4. The hook-shaped flexible fiber arm FJ is composed of two hook frames 5 and 8 and a pin 6 assembled in a cross shape. 8 is fixedly connected to the bottom surface of the table 2. This hook 8 is connected to the telescopic means LE by the bin 6.
, can be tilted in both the X direction and the Y direction with respect to the long axis of RE.

On the other hand, as shown in FIG. 3 and FIG. 5, the hole-shaped universal joint BJ has a joint frame 9.
The joint frame 9 is connected to the movable frame 4 of the expansion/contraction means SE.
It is fixed to the upper end surface, and the joint frame 10 is fixed to the lower surface of the table 2. In the case of this universal joint, the joint frame 10 can be tilted in all directions, ensuring that the table 2 can freely roll horizontally or vertically.

As shown in FIG. 1(A), the three expansion/contraction means LE, RE, and SE are erected at regular intervals on a line centered in the longitudinal direction of LE, RE, base 1, and table 2, S.E.
is erected at a position offset laterally from this center line. With this arrangement, the table 2 is mainly supported by the telescoping means LE, RE, and the telescoping means SE functions to roll the table 2 over.

Since the operating table according to the present invention is constructed as described above, the table 2 can be moved up and down, rolled over, and rolled up and down as follows.

(1) Raising the table The table is raised by extending the three extension means LE, RE, and SE by the same amount.

(2) Lowering of the table The lowering of the table is performed by all three telescoping means LE, RE, and SE being shortened together.

(3) In FIG. 1(C), the two telescoping means LE and RE of the table rolls upward to the right are left as they are, and the telescoping means S
This is done by shortening only E.

(4) In Fig. M1 (C), the two telescoping means LE and RE for the table's right-down rollover operation are left as they are, and the telescoping means S
This is done by extending only E.

(5) In Figure 7rSI (B), the two extension means LE and SE for vertical rotation of the table upward to the right are left as they are, and the extension means R is
This is done by extending only E.

(6) In FIG. 1(B), the two telescoping means LE and SE for vertically rotating the table from the bottom right are left as they are, and the telescoping means R
This is done by shortening only E.

As described above, since the three telescopic means are arranged in an L-shape, the four operations of horizontal and vertical rolls, in addition to the lifting and lowering operations, can be achieved by operating only one telescopic means.

The present invention is not limited to the illustrated example, but includes various modified embodiments.

The number of expansion and contraction means is at least three, and it is also possible to have four or more. A practical example other than three may be four, but in this case, the number of expansion and contraction means to be expanded and contracted for each operation is greater than in the case of three.

These expansion and contraction means can be arranged at each vertex of a triangle, instead of being arranged in an L-shape as in the embodiment. However, in this case, it is necessary to operate two or more expansion and contraction means for each movement of the table.

As mentioned above, the structure of the telescopic means includes a screw feed mechanism, a hydraulic sill mechanism, a link mechanism, etc., but a rack and pinion mechanism may also be used, and any structure can be used as long as the telescopic means can withstand the desired load. It may also be from.

Further, in the illustrated example, the fixed side is connected to the base and the movable side is connected to the table side, but this can also be connected in the reverse manner.

The universal joint is not limited to the hook-shaped joint and pole-shaped joint as shown in the drawings. As shown in Fig. 3 and Fig. 5, we used a universal joint with a fixed length rod 1- and a pole, so that when the vehicle rolls over, the distance between each expansion/contraction means LE and SE is slightly M'I-.
Any type of universal joint can be used as long as it can allow for changes in the support and spacing due to each movement of the table. It would be possible to use pole joints for all of them, or in this case it would be necessary to add a means to stabilize the table.

In addition, in the illustrated example, the table is shown as a single piece. This is only a schematic representation of the table, and the actual situation is that the table has multiple table tops. It will support the base frame. The present invention is not limited to surgical operating tables, but can also be applied to operating tables for other purposes.

G0 Effects of the Invention The operating table of the present invention is capable of simplifying and downsizing the table drive mechanism. The same mechanism can be used for the expansion and contraction means, which has a large mass production effect, so it can be manufactured at low cost, and it is also possible to make the entire operating table IVm.

[Brief explanation of drawings]

FIG. 1 is a diagram schematically showing the entire operating table of the present invention, FIGS. 2 and 3 are diagrams showing the configuration of the expansion/contraction means and the universal joint, and FIGS. 4 and 5 are diagrams showing the configuration of the universal joint. It is a diagram. DESCRIPTION OF SYMBOLS 1... Base, 2... Table, 3... Fixed frame part, 4... Movable frame part, 58... Hook frame, 6... Pin, 9.10... Joint frame, 11...Rod, LE, RE
, SE...Expansion joint, FJ...Hook-shaped universal joint, BJ...Ball-shaped universal joint, L...Center line, B...Ball. 2nd Offender Figure 3 Outside Figure 4 Figure 50

Claims (1)

[Claims] An operating table characterized in that at least three extensible means, each of which can extend and contract in length, are erected on a base, and the upper end of each extensible means is connected to a table via a universal joint.