JPH1014999A - Foot rest stage for intravenous drip and artificial dialysis - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease physical burden of a patient and to keep a posture for medical treatment for a long time by elevating a seat for foot rest to a higher position than the top face of the seat bottom of a chair for intravenous drip and artificial dialysis by means of an elevating/lowering device. SOLUTION: A foot rest stage 20 is constituted of a seat 21 which feets can be placed on and is freely elevated and lowered, a freely stretchable/ contractable cover for covering the lower part of the seat 21 and an elevating/ lowering device assembled on the lower part of the seat. In addition, a table, etc., are freely removably provided on the top face of the seat 21. The elevating/ lowering device 23 is constituted of a link mechanism 30 for holding horizontally the seat 21 and elevating and lowering and a driving device 31 for it. The link mechanism 30 holds the seat 21 by two sets of links which make two pieces to a pair. The driving device 31 uses a power cylinder and it is driven by means of a driving motor 46. In addition, the link mechanism 30 is actuated by means of the driving device 31 to elevate the foot rest stage 20 to a higher position than the seat bottom of a chair for intravenous drip and dialysis. It is possible thereby to decrease physical burden.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair footrest suitable for use in performing infusion, artificial dialysis, and other treatments.

[0002]

2. Description of the Related Art Chairs of this kind used for performing infusion, artificial dialysis, and other treatments can be seated in a normal state, and when a patient performs infusion, artificial dialysis, etc. It is necessary to keep the same posture for a long time with the equipment on the body, and it is preferable to keep the head low and both legs slightly raised, so that you can sleep on your back Is known. For example, a drip and artificial dialysis chair disclosed in Japanese Utility Model Publication No. 3-34179 (hereinafter referred to as Prior Art 1) is provided with a backrest that can be freely tilted in the front-rear direction with respect to a stool, and a shin pad is similarly seated. It is provided so as to be rotatable vertically with respect to the body.

FIG. 7 shows an application filed by the present applicant (Japanese Patent Application No. 8-339).
No. 408) is a perspective view showing this kind of chair for infusion and artificial dialysis. The infusion / dialysis chair (hereinafter referred to as chair) 1 includes a chair body 5 installed on a movable base 3 having casters 2 via a footrest 4. The chair body 5 includes a seat bottom 7, a seat back 8,
The seat bottom 7 includes a pair of sleeves (side panels) 9 fixed to both side surfaces of the seat bottom 7, a leg rest (foot rest) 10, a pair of left and right armrests 11 provided above each sleeve 9, and the like. In addition, the chair body 5 can be moved up and down freely, and drip, artificial dialysis,
When performing other treatments, the height of the patient's arm is adjusted by a gas lock device, a hydraulic cylinder, etc. (not shown) incorporated in the footrest 4 so that the height of the patient's arm becomes the most appropriate height. ing.

The lower end of the seat back 8 is a seat bottom 7.
Is pivotally mounted on the frame of the vehicle so as to be rotatable in the front-rear direction. When used as a chair, it is raised substantially vertically by a seat back drive motor incorporated in the seat bottom 7, and when used as a bed, two points are rearward. It is rotated as indicated by the chain line and is held in a substantially horizontal state. The legrest 10 has its upper end pivotally attached to the front end side of the seat bottom 7 so as to be freely rotatable in the vertical direction, and usually hangs downward substantially vertically as shown in the drawing. When the chair 1 is used as a bed, the chair 1 is rotated clockwise by approximately 90 ° by a legrest drive motor (not shown) incorporated in the seat bottom 7 and is held in a state slightly inclined above a horizontal state. When the seat back 8 and the leg rest 10 are made substantially horizontal as described above, the patient can be smoothly shifted to a posture lying on his / her back, and the patient is less burdened on the body and can perform treatment such as infusion or artificial dialysis. it can. Conversely, when the seat back 8 is erected and the legrest 10 is depressed, it is possible to quickly shift from the supine position to the sitting position. The armrest 11 is attached to the side surface of the seat back 8 so as to be freely rotatable in the vertical direction, and is imparted with a downward rotation behavior, so that the armrest 11 is normally inclined forward and the front end is pressed against the upper surface of the sleeve 9. When the chair 1 is used as a bed, the chair 1 rotates together with the seat back 8 so that the front end moves rearward along the upper surface of the sleeve 9 and is held in a substantially horizontal state as shown by a two-dot chain line.

[0005]

SUMMARY OF THE INVENTION A legrest 1 provided in a conventional drip and artificial dialysis chair as described above.
0 is designed to form part of the bed by being held substantially horizontally when the chair 1 is used as a bed. For this reason, the swing type, which is rotatable in the vertical direction, has occupied the mainstream. However, the swing-type leg rest 10 cannot support a patient's foot in a state of being substantially vertically hung down as shown in FIG. 8A, and therefore, when the patient is sitting in a normal state, If the back of the base 3 floats from the upper surface of the base 3, there is a problem that the state is likely to be unstable.

On the other hand, when performing intravenous drip, artificial dialysis, or other treatments, the leg rest 10 is moved in FIG.
As shown in (b), it is desirable to keep the toe slightly higher than the head while holding it in a state of being rotated by a small angle slightly above the horizontal state. However, in this state, the leg rest 1
0 is inclined and the tip is located above the upper surface of the seat bottom 7, so that the calf cannot be placed on the upper surface of the leg rest 10 without forcibly bending the knee joint of the patient. The burden on the arms and the like increases. Therefore, there has been a problem that it is not possible to withstand long-term treatment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to stably support a foot in both a sitting state and a lying state. Provides a drip and artificial dialysis chair footrest that reduces the burden on the patient's body when performing intravenous drip, artificial dialysis, and other treatments, and can maintain a state suitable for treatment for a long time Is to do.

[0008]

According to the present invention, there is provided a footrest seat provided on a base so as to be movable up and down, and a device for lifting the footrest seat. Is raised by the lifting device to a position higher than the upper surface of the seat bottom of the drip / dialysis chair. Further, in the present invention, the lifting device includes a link mechanism for horizontally lifting and lowering the footrest seat, and a driving device for operating the link mechanism. Further, according to the present invention, the driving device includes a cylinder body,
It is a power cylinder including a movable rod and a drive motor that expands and contracts the movable rod.

In the present invention, the footrest is raised and lowered horizontally by the link mechanism, and is pushed up to a position higher than the upper surface of the seat bottom during treatment. The driving device includes a power cylinder, and operates the link mechanism.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is an external perspective view showing an embodiment of a drip and artificial dialysis chair provided with a footrest according to the present invention, FIG. 2 is a perspective view showing an elevating device of the footrest, and FIG. FIG. 4 is a cross-sectional view showing a state where the platform is folded, FIG. 4 is a schematic diagram showing a state where a footrest of the same platform is raised, and FIG. 5 is an enlarged view of a portion A in FIG. The same components as those shown in the section of the prior art are denoted by the same reference numerals, and the description thereof will be omitted as appropriate. In these figures,
The drip and artificial dialysis chair 1 includes a height-adjustable footrest 20 which is located on the front end of the base 3 and located in front of the chair body 5. The chair 1 itself has a plate 14 that covers the lower part of the seat bottom 7 on the lower surface of the front end of the seat bottom 7.
The only difference is that the conventional chair shown in FIG. 7 is provided, and other configurations are substantially the same.

The footrest 20 includes a liftable seat (footrest seat) 21 on which a foot can be placed, a telescopic cover 22 that covers a lower portion of the seat 21, and an elevating and lowering built in a lower portion of the seat 21. The apparatus includes a device 23, a table 24 detachably mounted on the upper surface of the sheet 21, and the like.

The cover 22 is formed by fitting a plurality of cover frames 22a to 22n having different sizes so as to expand and contract, and the largest cover frame 22a is fixed to the lower surface of the sheet 21. I have. As shown in FIG. 5, a locking projection 25 is integrally provided on the inner surface of the lower end portion of the cover frame 22a.
5 prevents the second largest cover frame 22b from falling off. For this reason, an engaging projection 26 that engages with the locking projection 25 from above is integrally provided at the upper end of the outer surface of the cover frame 22b. A locking projection 25 for preventing the third largest cover frame 22c from coming off is integrally formed on the inner surface of the lower end portion of the cover frame 22b. Hereinafter, similarly, the third and subsequent cover frames 22
c to 22n are also prevented from coming off by the engagement between the locking projection 25 and the engagement projection 26.

The elevating device 23 comprises a link mechanism 30 for holding the sheet 21 horizontally and elevating it, and a driving device 31 for operating the link mechanism 30. The link mechanism 30 holds the seat 21 by two sets of links, one set of two links. Further, the structure of the link mechanism 30 will be described in detail. As shown in FIG. 2, first and second links 35a are rotatably attached to each end of the center shaft 33, and each of the two links 35a intersects in an X-shape. , 35b,
36 and 36b. These links 35
a, 35b, 36, and 36b are all equal in length, and the center is supported by the center shaft 33. One ends of the first links 35a, 36a are rotatably supported in the vertical direction by brackets 37, 37 provided on the base 3 side, and the other ends are connected to each other by a roller shaft 38. At both ends of the roller shaft 38, rotatable rollers 39 that roll along the lower surface of the sheet 21.
a and 39b are provided respectively. Second link 3
One end of each of 5b and 36b is rotatably supported in the vertical direction by brackets 40 and 40 provided on the lower surface of the sheet 21, and the other end is connected to each other by a roller shaft 41. The base 3 is provided at both ends of the roller shaft 41.
Rollable rollers 43a and 43b that roll along the guide rails 42a and 42b provided above are provided, respectively. The guide rails 42a and 42b are formed of a U-shaped cross section, are fixed on the base 3 so that the open portions face each other, and have the rollers 43a and 43b therein.
Is inserted.

As the driving device 31, a power cylinder is used. The power cylinder 31 includes a cylinder main body 44, a movable rod 45 provided to be able to move in and out of the cylinder main body 44, and a drive motor 46 for extending and contracting the movable rod 45. The cylinder bottom of the cylinder body 44 is rotatably supported in a vertical direction on a support column 47 provided on the base 3. An outer end of a movable rod 45 protruding from the cylinder body 44 is rotatably connected to a connection shaft 48 connecting an intermediate portion between the first links 35a and 36a. Drive motor 46
Is fixed to the outer peripheral surface of the cylinder body 44,
The rotation of the output shaft is transmitted to the movable rod 45 by a rack and a pinion (not shown). The movable rod 45 expands and contracts to operate the link mechanism 30 when the rotation of the drive motor 46 is transmitted via the rack and the pinion. That is, when the movable rod 45 is extended in a state where the sheet 21 is held at the lowermost position as shown in FIG. 3, the first links 35a and 36
a rotates counterclockwise with the bracket 37 side end as a rotation fulcrum and rises gradually, and in conjunction with this, the second links 35b and 36b rotate clockwise with the bracket 40 side end as a rotation fulcrum. Then, the sheet 21 is raised horizontally.
At this time, the rollers 39a and 39b move to the left along the lower surface of the sheet 21 as shown in FIG.
3b also moves leftward along the guide rails 42a and 42b.

FIGS. 6A to 6D are views showing the use state of the footrest 20. FIG. (A) is a use state when the patient is sitting on the chair 1, and in this state, the seat 21 is held at the lowest position. At this time, since the patient can place his or her feet on the seat 21, a stable posture can be maintained. (B) and (c) show the use state when the patient is sitting with his legs stretched out substantially horizontally and when lying on his back. In this state, the seat 21 is held at the same height as the seat bottom 7 of the chair 1. Therefore, even if this state is maintained for a long time, there is no particular discomfort and little fatigue. (D) shows a use state when the patient is lying on his back and receiving intravenous drip, artificial dialysis or other treatment. In this state, the seat 21 is held at a position higher than the seat bottom 7. In this case, the seat 21 is held horizontally unlike the conventional leg rest 10, so that the knee joint is bent and the thighs are bent to the seat bottom 7.
When floating from above, the entire calf can be very naturally adhered to the upper surface of the sheet 21. Therefore,
(B) Similar to the state shown in FIGS. (C) and (c), the burden on the patient's body is small, it can withstand long-term treatment, and the lower part of the knee is higher than the head so that blood circulation is improved. can do.

In the above-described embodiment, the link mechanism 30 for moving the sheet 21 up and down horizontally is a X mechanism.
First and second links 35a, 35b, 3
Although 6a and 36b are used, the present invention is not specified at all, and for example, a parallel link, a panda graph, or the like can be used. In the above-described embodiment, a power cylinder is used as the driving device 31, but a hydraulic cylinder, an air cylinder, a driving motor, or the like may be used. Further, in the above-described embodiment, an example in which the seat 21 is provided on the pedestal 3 of the chair 1 has been described, but the seat 21 is provided on a pedestal manufactured separately from the pedestal 3 of the chair 1, and this pedestal is mounted on the pedestal. It may be detachably connected to one pedestal 3.

[0017]

As described above, the drip infusion according to the present invention
The footrest of the chair for artificial dialysis includes a footrest seat provided on a base so as to be able to move up and down, and a lifting device for the footrest sheet.
Since it was configured to be raised to a position higher than the upper surface of the seat bottom of the chair for artificial dialysis, lowering the foot riding seat in the normal state of sitting on the chair allows the feet to be placed on the foot riding seat, so it is stable The posture can be maintained. Also, when receiving intravenous drip, artificial dialysis, or other treatment while lying on your back on a chair, raise the footrest seat and raise it higher than the seat bottom, so that the part below the knee joint of the foot will be in close contact with the footrest seat Since it can be put on, the burden on the body is less than that of a conventional swing type leg rest, it can sufficiently withstand long-term treatment and the like, and blood circulation is improved. In addition, since the lifting device for the footrest seat is composed of a link mechanism and a driving device such as a cylinder and a driving motor, the structure is simple and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing one embodiment of a drip and artificial dialysis chair provided with a footrest according to the present invention.

FIG. 2 is a perspective view showing an elevating device of the footrest.

FIG. 3 is a cross-sectional view showing a state where the footrest is folded.

FIG. 4 is a schematic view of a state where a footrest of the footrest is raised.

FIG. 5 is an enlarged view of a portion A in FIG. 4;

FIGS. 6 (a) to (d) are views showing states of use of a footrest;

FIG. 7 is an external perspective view of a conventional drip / dialysis chair.

FIG. 8 is a diagram showing a state of use of a conventional infusion / dialysis chair.

[Explanation of symbols]

2 ... caster, 3 ... base, 4 ... leg stand, 5 ... chair body, 7
... seat bottom, 8 ... seat back, 9 ... sleeve, 10 ... leg rest, 11 ... arm rest, 20 ... foot rest, 21 ... foot ride seat, 22 ... cover, 23 ... elevator, 30 ... link mechanism, 31 ... Drive device, 44 ... cylinder body, 45 ...
Movable rod, 46 ... Drive motor.

Claims (3)

[Claims] 1. A footrest seat provided on a base so as to be movable up and down, and a device for raising and lowering the footrest seat, wherein the footrest seat is provided on an upper surface of a seat bottom of a drip and artificial dialysis chair by the lifting device. A drip and artificial dialysis chair footrest that can be raised to a higher position. 2. The footrest of a drip and artificial dialysis chair according to claim 1, wherein the lifting device comprises a link mechanism for horizontally lifting and lowering the footrest seat, and a drive device for operating the link mechanism. An infusion / dialysis chair chair footrest. 3. The footrest of an infusion / dialysis chair according to claim 2, wherein the drive device is a power cylinder including a cylinder body, a movable rod, and a drive motor that expands and contracts the movable rod. Drip and artificial dialysis chair chair stand.