JPS61226043A - Pillow apparatus of bed for ophthalmic operation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention is applicable to precision optometry surgery for ophthalmological patients.

Pillow 1 that allows the patient's head to move horizontally, vertically, up and down, and laterally.
This is a pillow case [1] which is supported by C and is shaped like C to facilitate operations such as surgery.

Conventional techniques and their problems Ophthalmic surgery 1 In this case, the patient lies supine on a bed, 1 the head is fixed with a pillow, and an ophthalmoscope or microscope is placed facing above the eye to look into the fundus, etc. is doing. C,
If the affected area is other than the intraocular fundus, the angle of elevation and elevation of the ophthalmological microscope is limited, making it difficult to perform precise optometry or surgery.

Means for Solving Problems The present invention uses a microscope that tilts the patient's head sideways, unlike conventional microscopes that have limited swing angles and elevation angles.

By installing a pillow on the bed that can be moved both vertically and horizontally, it is possible to perform eye surgery and precise optometry.The pillow device is fixed to the end of the bed and has a movable frame. The arc-shaped idle rail is designed to support swinging motion.

A fixed frame equipped with a rack, this guide rail, an arc-shaped IC supported along the rack so as to swing in the direction of oscillation, and two motors for swinging and for raising and lowering. A movable frame, a parallel main link and a secondary link protruding from the movable frame so as to be able to move up and down, and a horizontal movement link that is provided at the tip of this link and is raised and lowered by the swinging of the link. The motor drive f consists of an elevating frame with a protruding pillow that allows the trowel to be moved laterally and horizontally.

EXAMPLE The present invention will be explained below based on an example shown in FIG.

In the figure, 1 shows a part of the head side of the ophthalmic surgery bed.
The pillow device A of the present invention is provided at the head side end of the bed 1.

This pillow device A is fixed to a bed 1, and includes a fixed frame 2 that swingably supports a movable frame, and a fixed frame 2 that swings laterally along an arc-shaped guide rail provided at the top of the fixed frame. A movable frame 8 that is movable, and a main link 4 that is protruded so that the movable frame 111 can be raised or lowered. The secondary link 5 is provided at the tip of the secondary link, and the swing f of the link is
It consists of a 144 frame 6 that lifts the iron for one year, and a huge pillow 7 that is supported by this lifting frame and can be moved laterally. The outline of this pillow device A is shown in FIG. 1, and the explanation of its operation is shown in FIGS. As shown, a frame body 22 is integrally provided at the lower part of a mounting bracket 21 which is fixed to the bed 1, and this frame body 22 has an arc shape that allows the movable frame to swing in the lateral direction. A guide rail 23 is provided to protrude laterally from the frame body, and a rack 24 is integrally formed along the guide rail 2B.

As shown in detail in Fig. 5, Fig. 7, the movable frame 8 rotatably supports a drive shaft 83 and a shaft 84 arranged parallel to each other via a frame body 1111 and bearings 12.82. 11RI Fix the base end side 41 of the main link 4, @
The proximal end 51 of the sub-link 5 is fixed to IIa, and two main links 4 and two sub-links b are supported parallel to each other at both ends of each shaft.

Also, two motors 8 and 9 are used for the frame body 81, one motor 8 is used to raise and lower the main link 4 and raise and lower the elevating frame, and the other motor 9 is used to move the movable frame 8 to the guide rail 2BI. The worm 81 acting on the motor 8 is attached to the drive shaft +11! The worm gear 82 is similarly provided with a worm 88 which is supported in a swivel manner on the drive shaft, and this worm 88 is connected to the worm gear 84. This worm 84 engages with the frame body 81.
1ffi is rotatably supported by a bearing 85 and fixed to one end of a shaft 85 disposed perpendicular to the drive shaft, and a pinion gear 86 and a wheel 8 are attached to the other end of the shaft 85.
7 is fixed, and this pinion gear 86 is meshed with the circular arc-shaped rack 24 recessed along the guide rail.

The wheel 8) is brought into contact with the top and front of the guide rail 28, and when the drive pinion gear 8G of the motor 81 is rotated by this wheel, the movable frame swings along the rack in an arc shape. I'm in charge. In addition, the frame wood (1s t + c is @71, as shown in Figure 8C, the guide wheel 8 that contacts the top, front, and side surfaces of the guide rail) and the guide wheel 8G that contacts the bottom surface of the rail are arranged vertically to face each other. The guide rails are held vertically and sideways so that when the movable frame swings, it moves accurately and smoothly while being regulated by the guide rails. Eggplant. In addition, a guide Qug for receiving the reaction force D) applied to the flexible frame is provided on the frame body 81, and this guide Qug is brought into contact with the lower side surface of the guide rail.

A worm gear 92 is fixed to the drive shaft 8B, and the motor 9
A protruding worm 91 is meshed with the worm 91, and when the motor 9 is driven, the worm rotates the drive shaft via the worm gears 91 and 92 to raise the main link upward. In addition, it is possible to switch between forward and reverse rotations within a fixed range.

As shown in detail in FIGS. 4 and 6, the elevating frame 6 has a bearing 69 at the end #-61 of the frame. ．． 62 supports two parallel shafts 68 and 64, and the tip side 4 of the main link is attached to this shaft 6B! of.

A shaft g4 is provided with a motor 10 that supports the tips 1152 of the sub-links, a pulley 11 protruding from the motor 10, and a sedge supported rotatably on the frame body 61 via a bearing 65. A belt 68 is stretched around a pulley 67 protruding from the knee rod F161, and the screw rod 66 is rotated in the forward and reverse directions by selectively switching between forward and reverse rotation of the motor 10. At this time, in addition to pulleys and belts, it is also possible to use gears, sprockets, horizontal wheels, and chains. And this screw wood 66
Screw together the screw assembly 6g and screw the screw wood θ) forward and reverse (
This threaded assembly 69 is adapted to move laterally along the cough rod, and the tip of this threaded assembly 69 is connected to a bracket 7++ ζ axis 7 protruding from the pillow f! Pivot connection via.

Function: In the pillow device constructed as described above, either the left eye or the right eye to be operated on is exposed as shown in Fig. 2.
q Center C, Lt What happens to the motor lO in the lifting frame?
is rotated in the forward or reverse direction, and the screw rod is selectively rotated in the forward or reverse direction to move the threaded body and move the pillow 7 in the lateral direction.

The height position and elevation angle of the pillow (the movement of swinging the head back and forth) are determined by driving the motor 9 to rotate the drive shaft B8 in the normal or reverse direction, thereby causing the parallelogram link movement by the main link and the sub link. The lift frame can be raised and lowered using the lift frame. The angle t of the shaking motion is achieved by rotating the pinion gear by driving the motor 8, rolling it on an arcuate rack, and moving the entire movable frame.

Effects of the Invention According to the present invention, the ophthalmological microscope can be adjusted because the pillow supporting the patient's head can be moved by a combination of raising and lowering, tilting and horizontal movement, and lateral movement of shaking the head from side to side. Even if the angle is limited, this pillow device has the advantage that the angle at which ophthalmologic surgery can be performed is arbitrary, ophthalmic surgery that requires precision can be performed accurately, and it is easy to operate.

[Brief explanation of drawings]

Figure 1 is a city view, Figure 2 is a side view, Figure 8 is an enlarged front view of important parts, Figure 5 is a side view of the movable frame, and Figure 6 is a side view of the movable frame. Side view of the lifting frame section, No. 7
The figure is a cross-sectional view of the fixed frame part, and FIG. 8 is a cross-sectional view of the guide rail holding part. 1 is base, 2 is 11 frame, 8 is movable frame, 4 is main link, 5 is sub 11 link. 6 is the lifting frame, γ is the pillow, and 8.9.10 is the motor. Patent Applicant Outside ShinMaywa Kogei Co., Ltd.

Claims (1)

[Claims] A fixed frame fixed to the end of the bed and equipped with an arc-shaped guide rail and a rack to swingably support the movable frame, and a fixed frame that swings its head along the guide rail and rack. A movable frame supported so as to swing in an arc shape in a direction, and equipped with two motors for swinging and elevating, and a main link and a sub link in the form of parallel links protruding from this movable frame so as to be able to be freely elevated. It consists of a link and an elevating frame protruding from a pillow that is provided at the tip of the link and is raised and lowered by the swinging of the link, and can be moved laterally and horizontally by the drive of the included lateral movement motor. A pillow device for an ophthalmic surgery bed, characterized in that the patient's head can be tilted up and down, swiveled laterally, raised and lowered, and moved laterally to facilitate ophthalmic surgery.