JP2540787Y2 - Safety device for pillow lock operating mechanism of medical 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 a safety device for a locking and unlocking mechanism of a pillow used in a medical operating table.

[0002]

2. Description of the Related Art At the time of a surgical operation using a conventional medical operating table, particularly an ophthalmic operating table, a pillow attached to the operating table can be finely adjusted by fixing it at that position depending on the type of operation. It is required and is fixed so that it does not move.

[0003] The pillow may be moved by the surgeon or assistant touching or hitting during the operation, and particularly, the operating table pillow used for performing delicate operations such as ophthalmic surgery is not safe. If required and the pillow moves during surgery, it can lead to serious accidents.

In this type of conventional pillow fixing, when fine adjustment such as height or inclination is performed by changing the operation site, after the pillow position is determined,
It was fixed by screws or tightening. Most conventional pillow fixing uses a handle for locking or unlocking, and when fixed at an appropriate position, the operating handle for locking and unlocking the pillow is normally locked and locked During operation, there is a problem that an operator or an assistant gets caught on this operation lever, the lock is released, and the fixed pillow moves.

[0005]

As described above, the pillow of the medical operating table must be fixed so that the patient cannot move, and therefore, the pillow must be unlocked during the operation. The problem to be solved by the present invention is,
Since it is fixed in a locked state like the above-mentioned conventional pillow for an operating table, the lock is not released even if it hits a handle for locking or unlocking.

Therefore, even if the operating table or pillow is in the locked state and the operator or assistant hits the operating handle for unlocking and locking during the operation, the operating handle moves freely so that the locked state is not released. I do.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a safety device for a pillow lock operating mechanism of an operating table for achieving the above-mentioned object, the means being slidable back and forth with respect to a substrate of an operating table bed. A link fixed to the link, an engaging member fixed to the link and having a meshing portion formed on one surface, a shaft fixed to the engaging member, and a shaft supporting the shaft. An engaging member formed with a meshing portion meshing with the meshing portion of the engaging member, an operating plate to which a pillow board fixed to the engaging member is fixed, and a tip fixed to the tip of the shaft bar. A lock operating member, a pressing member having a projection rotatably supported on a shaft pin mounted on the lock operating member, a handle rotatably mounted on the shaft pin, Inserted from the handle and pressed against the spring of the spring Those more configuration and knock pin being inserts into holes formed in the pressing member by.

That is, when the position of the pillow is to be determined and fixed, the knock pin provided on the operation handle and urged downward by a spring is inserted into the hole of the lock operating portion to integrate the two. The lock is released from the locked state, and after the lock, the knock pin of the operation handle is removed from the hole to be separated from the lock operating portion. Accordingly, even in the locked state, the operation handle is in a free state, so that the lock is not released even if the operation handle is hit during the operation.

[0009]

[Operation] The safety device of the pillow lock operating mechanism of the operating table according to the present invention allows the operating handle for locking and unlocking the pillow to be separated from the lock operating portion for unlocking and locking. When the position of the pillow is to be changed and fixed, the push portion of the knock pin provided on the operation handle and urged downward by the spring is pushed upward, and fitted into the hole provided in the lock operating portion. Thereby, the operation handle and the lock operating portion are integrated, and the operating state is such that the lock or the lock can be released.

After the lock is released, when the knock pin of the operation handle is released, the knock pin urged downward by the spring is disengaged from the hole of the lock operation portion and is separated from the lock operation portion. Is in a free state, so that the lock will not be released even if it is caught or hit by the operation handle during surgery. As described above, the lock can be easily released and the lock can be easily performed, and the safety is further maintained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 is an operating table bed
It is fixed to the substrate 2. Reference numeral 3 denotes a guide rod for the slide rod 4 which moves back and forth of the operating table. Reference numeral 5 denotes a lock lever for fixing the slide rod 4 so that the slide rod 4 can be fixed at an appropriate position. .

Reference numeral 6 denotes a link which is rotatable in the vertical direction with a fulcrum 7a at the tip of the slide rod 4 as a rotation fulcrum, and an operation lever 7 for locking and unlocking the rotation of the link 6 is attached thereto. The other end of the link 6 is a link 10
An operation handle 8 for locking and unlocking the engaging member 9 to which is fixed is attached, and the engaging member 9 rotates about a fulcrum 8a as a rotation fulcrum.

Further, an engaging member 11 is fixed to the other end of the link 10, and the engaging member 11 is fixed or screwed to the shaft rod 14 and fastened by a nut 21. A lock operating member 17 provided with a hole is fixed to the shaft rod 14, and is provided so as to be loosely fitted to the shaft pin 16. Shaft 1
The lock operating member 17 and the engaging member 11 fixed to
And an engagement member 12 that slides back and forth is provided, and an operation plate 15 is fixed to the engagement member 12 so as to slide.

Meshing portion 1 of the above-mentioned engaging members 11 and 12
1a and 12a are formed in the form of meshing teeth, which are locked by meshing and unlocked when the meshing is released. A bracket 22 fixed to a pillow board 23 is fixed to the sliding engaging member 12. Further, a pressing member 18 having a U-shape is fixed or screwed to both outer sides of the lock operating member 17 on the shaft pin 16, and a projection 18a and a hole 18b are provided.
When the operation plate 15 fixed to the engagement member 12 is pressed by the rotation of the pressing member 18, the engagement member 12 is locked by the engagement of the teeth of the engagement member 11.

An operating handle 13 is loosely fitted to the shaft pin 16 and attached to both outer sides of the pressing member 18. Further, a hole 13 a is provided in the operation handle 13, a knock pin 19 having a thicker end portion is fitted therein, and the pressing portion 19 a is urged downward by a spring 20. Therefore, by pushing the push portion 19 upward, the knock pin 1
Reference numeral 9 is fitted into the hole 18b of the pressing member 18, and can be rotated by the operation handle 13 integrally with the pressing member 18 about the shaft pin 16 as a rotation axis.

The pillow 24 is constructed as described above.
When the operation position is set to the above position, the slide rod is used to move back and forth, and the operation handle 7 is used to release the lock and the link 6
Is tilted and positioned, locked and fixed by the operation handle 7. Further, when changing the pillow angle, the tilting forward and backward can be positioned by unlocking and locking with the operation handle 8, and when changing the left and right angle, the operation handle 13 is similarly used. A case where the pillow angle is changed to left and right will be described for an example of the operation handle.

When releasing or re-locking the locked state, the knock pin 19 of the operation handle 13 is pushed upward, so that the knock pin 19 is fitted into the hole 18b of the pressing member 18 of the lock operating portion, and the pressing member 18 is pressed. When it is operated and rotated about the shaft pin 16, the shaft pin 1
Since the projection 18a of the engaging member 18 having a large turning radius pivots downward about the center 6, a portion having a small turning radius contacts the portion of the operating plate 15 of the engaging member 12, and the engaging member The engaging member 12 becomes free with respect to 11, and the engaging members 11 and 12 in the engaged state can be disengaged.

After the pillow 24 is rotated in the unlocked state and fixed at an appropriate angular position, the operating handle is rotated downward to return to the original position, whereby the pressing member 18 is rotated, and the projection 18a is engaged. When the operating plate 15 of the joining member 12 is pressed, the engaging member 12 is engaged with the engaging member 11, and the pillow is fixed.

After locking, when the pressing portion 19a of the knock pin 19 fitted in the hole 18b of the pressing member 18 is released, the knock pin 19 is disengaged from the hole 18b by the spring 20, and the operating handle 13 is separated from the pressing member 18 and free. The locked state is not released even if the operator or assistant hits the operation handle 13 to operate the operation handle 13.

[0020]

[Effect of the Invention] As described above, the present invention locks or unlocks by integrating the operation handle and the lock operating portion used for locking or unlocking, and after locking, that is, fixing the pillow, By separating the operating handle from the lock operating part, the operating handle is free, and even if the operating table pillow is in the locked state, even if the operator or assistant hits the operating handle during the operation, the operating handle is free. Because of this, the locked state is not released, safety during the operation can be ensured, and the operator or the patient can perform the operation with peace of mind.

[Brief description of the drawings]

FIG. 1 is a side view of the pillow operating portion of the present invention.

FIG. 2 is a sectional view of the embodiment of the present invention.

FIG. 3 is a front view of the embodiment of the present invention.

[Explanation of symbols]

 2 Board 3 Guide rod 4 Slide rod 5 Lock lever 6, 10 Link 7, 8, 13 Operation handle 7a, 8a Support point 9, 11, 12 Engaging member 11a, 12a Meshing section 14 Shaft rod 15 Operating plate 16 Shaft pin 17 Lock Operating member 18 Pressing member 18a Projection 18b Hole 19 Dowel pin 20 Spring 23 Pillow board

Claims (1)

(57) [Scope of request for utility model registration] 1. A link 10 which slides back and forth with respect to a base plate 2 of an operating table bed 1 and is mounted so as to be able to undulate, and is engaged with the link 10 and has an engaging portion 11a formed on one surface. A member 11, a shaft 14 fixed to the engaging member 11, and a meshing portion 12a supported by the shaft 14 and meshing with a meshing portion 11a of the engaging member 11;
An operating plate 15 to which a pillow board 20 fixed to the engaging member 12 is fixed;
4, a pressing member 18 having a protrusion 18a rotatably supported on a shaft pin 16 attached to the lock operating member 17;
A handle 13 rotatably attached to the shaft pin 16 is inserted into a hole 18 b formed in the pressing member 18 by being inserted from the handle 13 and pressing against the spring force of a spring 20. And the pressing member 1 before operating the handle 13.
8 presses the operating plate 15 to engage the engaging portions 11a and 12a of the engaging members 11 and 12, and inserts the knock pin 19 into the hole 18a of the pressing member 18. When the handle 13 is rotated in this state, the pressing member 18 is rotated, the projection 18a is separated from the operation plate 15, and the engagement with the engagement portions 11a and 12a is released, and the pillow board 23 can be turned. A safety device for a pillow lock operating mechanism of a medical operating table, characterized in that: