JPH0322780B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceiling-suspended medical supply device used in medical rooms such as operating rooms and recovery rooms of hospitals. The outlet box, which houses all the outlets, is suspended from the ceiling via an arm so that it can be raised and lowered, and the necessary medical equipment is mounted on the tower so that it can be freely moved vertically and horizontally. The present invention relates to an elevating device for a medical supply device that attempts to utilize indoor space effectively.

Previous technology had been to install an outlet box, which houses pipe fittings and electrical wire connections for extracting medical gas and other fluids, from the ceiling of a medical room using a pneumatic or hydraulic cylinder or a pinion cylinder.
It is suspended so that it can be raised and lowered using a rack mechanism.

In such prior art, it is mechanically and structurally large-scale to lift and lower medical equipment such as anesthesia machines, electrocardiographs, and electric scalpels with an eccentric load applied to the lifting axis. This was difficult, as it was expensive and required a large amount of power. That is, since it was necessary to equalize the moment due to the weight of the medical equipment mounted on the tower, restrictions were imposed on the selection and arrangement of the equipment, resulting in significant inconvenience.

In addition, when passing hoses and electric wires through a structure that has two degrees of freedom, elevating and rotating, the positions of the hoses and electric wires constantly change due to the elevating and rotating, resulting in entanglements and the like.

The purpose of the present invention is to solve the above-mentioned technical problems and to provide a ceiling-suspended medical supply device that mounts medical equipment on a tower with an epoch-making structure and that can be automatically raised and lowered while being subjected to an eccentric load. The goal is to provide the following.

1 is a front view of a lifting device 1 according to the invention, and FIG. 2 is a sectional view of the section of FIG. 1. FIG. The upper end of the cylindrical fixed column 2 is connected to the slab surface 100.
The fixed column 2 is rotatably fixed to a mounting frame 101 in the ceiling 3 fixed to the ceiling 3, and the fixed column 2 is suspended from the mount 100 by the slab surface. The fixed column body 2 is an angular ball bearing 10
2,103 supports the radial force and thrust force. One end 7 of a cylindrical arm 6 having a hollow portion 5 communicating with the hollow portion 4 of the column 2 is fixed to the lower end of the fixed column 2 . The arm 6 can be horizontally rotated around the axis of the fixed column 2.
An upper end 10 of a telescopic column 9 is pivotally attached to the other end 8. The column 9 has a hollow portion 12 that communicates with the hollow portion 5 of the arm 6 . An outlet box 13 is attached to the lower end 11 of the column 9. The outlet box 13 can rotate together with the column 9 about its axis. One end of a support rod 15 is pivotally attached to the lower end of the outlet box 13, and a table 14 is attached to the other end of the support rod 15.
is installed. The table 14 is attached to the outlet box 13 so as to be horizontally pivotable. On this table 14, an anesthesia machine and various other medical equipment are placed or attached.

Flexible tubes 16 and electric wires 17 for supplying medical oxygen, laughing gas, nitrogen, and other gases and vacuum are led from the ceiling surface 3 to the hollow part 4 of the column 2, and further to the hollow part 5 of the arm 6 and the column 9. The outlet box 13 is reached through the hollow part 12 of the outlet box 13. The outlet box 13 is equipped with a gas and vacuum pipe joint 18 connected to the flexible pipe 16 and a connection port 19 for the electric wire 17, and gas, electric power, etc. can be supplied from the outlet box 13. Can be done.

FIG. 3 is a sectional view of the lifting device 1 according to the invention, and FIG. 4 is a simplified cross-sectional view taken along the section line - in FIG. An annular support frame 21 having a hook-shaped cross section is fixed below the holding plate 20 fixed within the end 8 of the arm 6. A short cylindrical rotating plate 22 is placed concentrically with this support frame 21 .
At the upper end of the cylindrical portion 23 of the rotating plate 22, an outward flange 24 that is continuous with the cylindrical portion 23 is formed. This outward flange 24 is vertically supported by the support frame 21 via a bearing 25. This bearing 25 supports the thrust force. Therefore, the rotary plate 22 is supported by the support frame 21 and can rotate around the axis of the support body.

In order to define the allowable range θ of the rotation angle of the rotating plate 22, the holding plate 20 is provided with projections 2 as shown in the fourth figure.
6 and 27 are formed at intervals in the circumferential direction. A stopper 28 that can come into contact with the protrusions 26 and 27 is provided in a protruding manner on the inner circumferential surface of the cylindrical portion 23 of the rotary plate 22. By determining the rotation allowable angle θ of the rotary plate 22 in this way, the support 9 can be attached to the rotary plate 22.
The permissible rotation angle θ of the outlet box 13 connected via the outlet box 13 can be determined. Therefore, no tensile force is applied to the flexible tube 16 and the electric wire 17 led from the arm 6 to the outlet box 13, and the flexible tube 16 and the electric wire 17 are not twisted in their longitudinal direction. Note that the above allowable angle θ
is, for example, 270°.

The pillar 9 has four threaded rods 29, 30, 31, 32.
, and is arranged at a position surrounding the hollow part 12 . Each upper end of the threaded rods 29 to 32 is connected to the bottom 22 of the rotating plate 22.
The lower ends of the threaded rods 29 to 32 are respectively fixed to a horizontal plate 33 in the outlet box 13. Like this, four screw rods 2
By using threaded rods 29-3
This prevents the outlet box 13 attached to the column 2 from tilting, and supports the eccentric load placed on the axis of the column 9.

Hollow part 12 surrounded by four threaded rods 29 to 32
One end of a chain-shaped holding member 44, 45 for protecting the flexible tube 16 and the electric wire 17 is fixed to the inner wall 43 in the arm 6 direction. Holding member 4
4 and 45 are suspended in the hollow part 12, passing through the through hole 33a formed in the horizontal plate 33, and the other ends are bent in directions away from each other within the outlet box 13. are respectively fixed to the ceiling surface 46 of. As shown in FIG. 5, these holding members 44, 45 are connected in a chain shape such that links made of plastic or the like can be bent only in one direction, and fix the lower ends of the holding members 44, 45. When the outlet box 13 is raised, it assumes the configuration shown by the imaginary line in FIG. Therefore, the flexible tube 16 and the electric wire 17 passing through the holding members 44, 45
The retaining members 44 and 45 allow the outlet box 13 to be easily bent in the left-right direction, and also to allow the outlet box 13 to be moved up and down without coming into contact with other members or getting entangled with each other.

A cylindrical cover 38 is placed over the outer circumferences of the four threaded rods 29 to 32. The cylindrical cover 38 includes a first cover 34, a second cover 35, and a third cover 36. The outer diameter of the second cover 35 is smaller than the inner diameter of the first cover 34, and the outer diameter of the third cover 36 is smaller than the inner diameter of the second cover 35. The first cover 34 is fixed to a cover mounting plate 37 fixed to the arm 6, and the second cover 34 is fixed to a cover mounting plate 37 fixed to the arm 6.
5 and the third cover 36 are not fixed anywhere and move up and down in conjunction with the outlet box 13. An inward flange 39 is formed at the lower end of the first cover 34.
A stopper 41 that can come into contact with the second cover 35 is fixed to the upper end of the second cover 35. Further, an inward flange 40 is formed at the lower end of the second cover 35, and a stopper 42 that can come into contact with this inward flange 40 is fixed to the upper end of the third cover 36. In this way, the cylindrical cover 38 surrounding the threaded rods 29 to 32 is attached to the outlet box 1.
It is constructed so that it can be expanded and contracted in conjunction with the vertical movement of No. 3. Such a cylindrical cover 38 functions to always surround the threaded rods 29 to 32, and also improves the appearance.

FIG. 6 is a perspective view of a mechanism for raising and lowering the outlet box 13. outlet box 1
A bearing 55 is fixed to the inner wall 47 at the top of the housing 3 . A rotating shaft 53 that is rotatably fixed is inserted into the bearing 55 . A pulley 57 is connected to the lower end of the rotating shaft 53.
An endless single toothed belt 54 meshes with the belt. The single toothed belt 54 is attached to a pulley 5 connected to an output shaft 52 of a drive source 51 fixed in the outlet box 13.
It can be wrapped around 8. A pulley 56 is connected to the upper end of the rotating shaft 53, and an endless double-toothed belt 59 meshes with the pulley 56. Double toothed belt 5
9 is commonly wound around pulley wheels 64, 65, 66, 67 as driving wheels which are individually formed around the outer periphery of the nuts 60, 61, 62, 63. The nuts 60-63 are individually screwed onto four threaded rods 29-32 extending in the vertical direction.

FIG. 7 is a sectional view showing the state in which the double toothed belt 59 is wound. The double toothed belt 59 is wound around pulley wheels 64 to 68 in a rectangular shape. Therefore, the hollow portion 12 for inserting the holding members 44 and 45 through which the flexible tube 16 for gas or vacuum and the electric wire 17 shown in FIG. 5 can be inserted can be made sufficiently wide.
In Fig. 6, the hollow part 1 is shown for ease of illustration.
The illustration of the holding members 44 and 45 inserted through the parts 2 and 2 is omitted.

8 is an enlarged sectional view of the section of FIG. 3; FIG. The upper end of the nut 62, on which a pulley wheel 66 as a driving wheel is formed, is rotatably attached to the elevating plate 70 via a bearing 69. Further, the lower end of the nut 62 is rotatably attached to a lifting plate 72 via a bearing 71. other nuts 6
Nuts 0, 61, and 63 have the same structure as the nut 62, and are individually rotatably attached to the two elevating plates 70, 72. Two elevating plates 70 and 72 that sandwich the nuts 60 to 63 from above and below are fixed members 73 to 76.
This prevents mutual displacement in the vertical direction and fixes them integrally. Nuts 60-63 are individually screwed onto four threaded rods 29-32. Therefore, the elevating plates 70, 72 can be raised and lowered together with the nuts 60-63 rotatably attached to the elevating plates 70, 72.

Referring again to FIG. 6, when the forward and reverse rotatable drive source 51 is rotated in the forward direction by operating the switch A provided in the outlet box 13, this rotational force is applied to the single toothed belt 54. The signal is transmitted to the rotating shaft 53 via. The double-toothed belt 5 meshes with the pulley 56 of the rotating shaft 53 as the rotating shaft 53 rotates.
9 is running. By running both toothed belts 59, nuts 60 to 63 meshing with both toothed belts 59 can be simultaneously rotated in one direction. Threaded rod 29
By simultaneously rotating the nuts 60 to 63 that are screwed into the threaded rods 29 to
32 at the same time. As a result, the elevating plates 70, 72 fixed to the nuts 60-63 rise along the threaded rods 29-32. Lifting plate 70,
As 72 rises, the rotating shaft 53 rotatably fixed to the elevating plate 72 is pulled up. Rotating shaft 53
is fixed to the inner wall 47 of the outlet box 13, so that the outlet box 13 containing the drive source 51 can be raised integrally along the threaded rods 29-32.

Further, when the drive source 51 is rotated in the opposite direction by operating switch B, the outlet box 13 is rotated between the threaded rods 29 to 32 in accordance with the above operation process.
can be lowered integrally along the

FIG. 9 is a front view of another embodiment of the invention.
The configuration shown in FIG. 9 is similar to the configuration shown in FIG. 1, and corresponding parts are given the same reference numerals. The upper end 10 of the extensible support column 9 is fixed to a pedestal 101 attached to a slab surface 100, and the support column 9 is suspended by penetrating the ceiling 3. An outlet box 13 is attached to the lower end 11 of the column 9. One end of a support rod 15 is pivotally attached to the lower end of the outlet box 13, and a table 14 is attached to the other end of the support rod 15. The outlet box 13 can be raised, lowered, or stopped by operating switches A, B, and C connected to a drive source (not shown) built in the outlet box 13 and capable of forward and reverse rotation. In this way, the support 9 for raising and lowering the outlet box 13 is connected directly to the slab surface 10.
By suspending the lifting device 101 from the pedestal 101 attached to the cradle 101, a different type of model without an arm can be created, and the mechanical configuration of the lifting device 1 according to the present invention can be simplified.

FIG. 10 is a simplified diagram showing yet another embodiment of the present invention. Figure 10 is similar to the configuration of Figure 7;
Corresponding parts are given the same reference numerals. What is noteworthy is that the number of threaded rods is three. Nuts 61, 6 are attached to the three threaded rods 30, 31, 32.
2 and 63 are individually screwed together. Nuts 61-63
An endless double-toothed belt 59 is wound around pulley wheels 65 to 67 formed in the same manner. Holding members 44 and 45 through which flexible tubes 16 and electric wires 17 are passed are inserted into hollow portions 12 of both toothed belts 59 .
In this manner, even when the number of threaded rods 30 to 32 from which the outlet box 13 is suspended is reduced to three, the outlet box 13 is prevented from inclining.

As described above, according to the present invention, medical equipment such as an anesthesia machine, an electrocardiograph, an electric scalpel, etc. mounted on an outlet box suspended from the ceiling and a table attached to the outlet box can be set at any desired position. It is possible to realize a ceiling-suspended medical supply device that can be moved or raised and lowered as needed while being set, making effective use of indoor space, and reducing the burden of indoor cleaning and medical activities.

Further, according to the device of the present invention, since the pulley at the upper end of the rotating shaft engages with the endless belt so as to be pushed toward the axial direction from the outside, a small space is required for the hollow portion. Furthermore, the winding angle between the pulley and the endless belt increases, improving power transmission.

The column is covered with a cylindrical cover that expands and contracts like a telescope, which prevents dust from entering the column and gives it a good appearance.

The holding member is freely bent only in one direction depending on the vertical position of the outlet box, and does not cause vibration or lateral deflection, so that the flexible tube or the electric wire will not be damaged by contact with the threaded rod.

The outlet box is supported by at least three threaded rods and moves up and down by screwing into individual nuts driven by an endless belt, so it does not tilt and therefore the table Medical equipment placed on top will not fall off.

Since the outlet box rotates by a predetermined angle, it is convenient for picking up medical equipment on the table, and has the advantage that flexible tubes and electric wires do not become tangled.

[Brief explanation of the drawing]

1 is a front view of a lifting device 1 according to the present invention, FIG. 2 is an enlarged sectional view of the section of FIG. 1, and FIG.
4 is a simplified sectional view taken along the cutting plane line - in FIG. 3, FIG. 5 is a front view of the holding members 44 and 45, and FIG. 6 is a sectional view of the lifting device 1. 7 is a plan view showing a state in which the belt 59 is wrapped around the belt 59, FIG. 8 is an enlarged sectional view of the section of FIG. 3, and FIG. 9 is a front view of another embodiment of the present invention. , FIG. 10 is a front view of still another embodiment of the present invention corresponding to FIG. 6. 1... Lifting device, 13... Outlet box, 29, 30, 31, 32... Threaded rod, 51...
... Drive source, 54 ... Single toothed belt, 60, 61,
62, 63...Natsuto, 64, 65, 66, 67
...Pulley wheel.

Claims (1)

[Claims] 1. Holding plate 20 or slab 100 provided on the ceiling
an annular support frame 21 fixed below the support frame 21; a rotating plate 22 that is provided concentrically with the support frame 21 and supported via a first bearing 25 so as to be rotatable within a predetermined angle around the axis of the support frame 21; A column 9 whose upper end is fixed to a rotary plate 22 and has a hollow portion 12 formed therein; an outlet box 13 mounted below the column 9 that can be raised and lowered; and a support rod pivoted to the lower end of the outlet box 3. a table 14 which is pivotably mounted via a support 15; a flexible gas and vacuum pipe 16 and an electric wire 17 passing through a hollow 12 of the support 9 to an outlet box 13; and suspended in the hollow 12 of the support 9; flexible tube 16
and a pair of holding members 4 that protect the electric wires 17
4, 45, and a lifting means for lifting and lowering the outlet box 13, and the column 9 includes at least three threaded rods 29, 30, 31... arranged at positions surrounding the hollow part 12, each of which rotates at its upper end. A plurality of covers 34, 35, 36 are fixed to the bottom of the plate 22, and on the outer periphery of these threaded rods 29, 30, 31, the upper part is fixed to a cover mounting plate 37 and is telescopically telescopic. A cylindrical cover 38 is covered, and the outlet box 13 is covered with a lower horizontal plate 3.
3 is fixed to the lower end of each threaded rod 29, 30, 31..., and is provided with a gas and vacuum pipe joint 18 connected to the flexible tube 16, a connection port 19 for the electric wire 17, and various power switches A, B, C. The holding members 44 and 45 have links in only one direction.
They are connected in a chain shape so that they are bent into a letter shape.
Through the outlet box 13, the other end is bent in a direction away from each other within the outlet box, and the ceiling surface 4 within the outlet box 13 is bent.
The outlet box elevating means includes a second bearing 55 fixed to the upper inner wall 47 of the outlet box 13, a rotating shaft 53 rotatably inserted into the second bearing 55, and a rotating shaft. A pulley 57 connected to the lower end of the outlet box 1
The endless belt 54 is wound around the output shaft 52 of the drive source 51 fixed in the rotary shaft 53, the pulley 56 is fixed to the upper end of the rotating shaft 53, and the threaded rods 29, 30, 31... are individually screwed together. The nuts 60, 61, 62... mesh with the pulley 56 connected to the upper end of the rotating shaft 53 from the hollow side, and act as drive wheels formed individually on the outer periphery of the nuts 60, 61, 62... It has an endless belt 59 that is commonly wound around the pulleys 64, 65, 66..., and the nuts 60, 61, 62...
5 and 66, and the third bearing 6
It is characterized in that it is rotatable relative to the elevating plates 70, 72 fixed above the outlet box 13 via the nuts 60, 61, 62, and is mounted so as to prevent vertical displacement with the nuts 60, 61, 62. Lifting device for ceiling-suspended medical supply equipment.