JPH0334178Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a chair used primarily for intravenous drips and dialysis.

(Prior art) Conventionally, chairs used for medical treatment, for example, have not only been used for sitting in a normal state, but also for people to sit on them, especially when receiving an intravenous drip or performing dialysis. It needs to be so that it can be laid down. In particular, intravenous drips and dialysis require a considerable amount of time, and the patient must remain in approximately the same state with various devices attached to his or her body during this period. In such cases, you may feel better if you raise your legs slightly or repeat the horizontal and raised positions as long as it does not affect the intravenous drip or dialysis.

(Problems to be solved by the invention) This invention focuses on the above-mentioned points. In particular, when lying down on a stool for intravenous drips, dialysis, etc., depending on the type of treatment, etc., this invention Not only can it be maintained at approximately the same height or higher than the body for a long period of time, but it can also be used to hold both legs or one leg in a flat or raised position. We are trying to provide a chair that can be used repeatedly without affecting intravenous drips or dialysis.

An example of a chair that allows the patient's legs to move up and down in this manner is a ``dental treatment table'' as proposed in Japanese Utility Model Publication No. 3197/1983. In this treatment table, a seat on which a patient can rest his/her legs can be raised and lowered by a cylinder placed on the underside of the seat. and,
The leg rest seat on this treatment table is configured to be tilted about one axis provided approximately at the center of the treatment table.

However, according to this treatment table, the leg rest seat tilts in an arc around an axis provided approximately in the center of the treatment table, so the tips of the patient's legs move upward considerably. Therefore, the patient lying on this treatment table must assume a very unstable position. In particular, as expected with this "dental treatment table," when the patient's head is in a supine position and the leg rest seat is moved upward, the tips of the patient's legs become abnormally high and become unstable. Become something. Such a state is the posture that must be avoided most when performing intravenous drips or dialysis.

As a result of various studies, the inventors of the present invention and others realized that it would be better for the patient's body to stabilize if the shin, rather than the tip of the leg, was moved up and down while keeping it level, and the present invention was completed.

(Means for Solving the Problems) In order to solve the above problems, the means taken by the present invention are as follows: A seat body 4 that supports the waist of the human body. The chair body 1 supports a backrest 5 that is tiltably provided at the rear of the seat 4 and a leg rest 13 that is provided at the front of the seat and supports the legs of the human body. This is a chair for infusion and dialysis, and the leg rest 13 is fixedly provided on the chair body 1 with a fixed support 14 whose upper surface is horizontal, and approximately in the center of this fixed support 14. A shin rest part 15 is housed in the formed opening 14a so as to be vertically movable and has a substantially horizontal upper surface. A guide rod 16, a guide cylinder 17 that accommodates the guide rod 16 and is fixed to the chair body 1 side, and a substantially L-shaped guide cylinder 17 that is connected to the guide rod 16 at its tip and is pivoted on the chair body 1 side. Rotating lever 2
4 and an actuator 27 arranged substantially horizontally to rotate the rotary lever 24.
This is a chair for infusion and dialysis, which is supported so as to be movable up and down relative to the opening 14a of a fixed support 14.

Therefore, in the chair according to the present invention,
The shin rest part 15 of the leg rest part 13 can be raised and lowered to an upper position and a lower position as required, so that it can be used conveniently and comfortably.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

Now, in the chair for infusion/dialysis according to this embodiment, four pillars 2 are provided projecting from the lower part of the chair body 1, and casters 3 are attached to the lower ends of these pillars. A seat body 4 is arranged and fixed approximately at the center of the upper part of the chair body 1, and a backrest body 5 is mounted on the chair body 1 behind the chair body 1 via a support shaft 6.
It is rotatably supported between an upright position shown by a solid line in the figure and an inverted position shown by a chain line.

On both sides of the seat body 4 and the backrest body 5, a pair of armrest bodies 7 are rotatably mounted on the chair body 1 at their base ends by a support shaft 8,
As shown by the solid line in FIG. 1, it can be selectively rotated between a use position extending substantially horizontally forward and a retracted position extending substantially vertically upward. Moving tables 9, 9 are rotatably and detachably disposed on the chair body 1 via a support 10 so as to be located above the front end of the seat body 4. In front of the moving table 9, the chair body 1 A fixed table 11 is disposed via a support 12 at the upper part of the front end.

At the front part of the seat body 4, on the chair body 1, there is a leg rest part 1 at approximately the same height as the seat body 4.
3 are arranged. This leg rest part 13 has a square frame-shaped fixed support 14 having a through hole 14a in the center.
and a shin rest part 15 arranged movably up and down in the through hole 14a of the fixed support body 14,
The shin rest part 15 is arranged at a lower position at approximately the same height as the fixed support 14, as shown by the solid line in FIG. 4, and at an upper position, which is higher than the fixed support 14, as shown by the chain line in the same figure. It is becoming more and more like this. A guide rod 16 is protruded from the lower surface of the shin rest part 15, and is slidably fitted into a guide cylinder 17 provided on the chair body 1 to guide the raising and lowering movement of the shin rest part 15. There is.

As shown in FIG. 3, a mounting piece 18 is provided protruding from the lower surface of the seat body 4, and a projecting piece 19 is provided protruding from the lower surface of the base end of the backrest body 5 in correspondence with the mounting piece 18. A sub-actuator 20 made of a cylinder device is interposed between the attachment piece 18 and the protruding piece 19, and a coil spring 21 is provided between the protruding piece 19 and the chair body 1. An operating shaft 22 is rotatably installed on the chair body 1 below the sub actuator 20, and a seat body 4 is provided above both ends of the operating shaft 22.
A pair of backrest operation levers 23 are provided to protrude so as to be located on both sides of the seat. When the backrest control lever 23 is rotated with the backrest body 5 placed in the inverted position shown by the chain line in FIG. 3, a stopper device (not shown) for the sub actuator 20 is released. By the action of the sub actuator 20 and the coil spring 21, the backrest body 5 is rotated to the upright position shown by the solid line in FIG. Further, after releasing the stopper device based on the rotation operation of the backrest operation lever 23 in the upright position, by applying a backward rotational force to the backrest body 5, the backrest body 5 is rotated to the upright position. It is designed to be able to move.

As shown in FIG. 4, below the leg rest 13, a rotary lever 24 having a substantially L-shaped front view is rotatably supported by a support shaft 25, and one end of the lever 24 is rotatably supported by the guide rod 24. A long hole 24a that engages with a pin 26 on the top 16 is formed. Further, between the other end of the rotary lever 24 and the chair body 1, an actuator 27 made of a cylinder device is interposed substantially horizontally with respect to the chair body 1. (See Fig. 5) On the other hand, as shown in Fig. 3, an operating shaft 28 is installed on the chair body 1 below the seat body 4, and a pair of operating shafts 28 are provided below both ends of the chair body 1 so as to be located on both sides of the seat body 4. Elevating object operation levers 29 are provided in a protruding manner. A wire cable 30 is provided between the operating lever 29 for the elevating object and the actuator 27, and a stopper device (not shown) for the actuator 27 is released as the operating lever 29 for the elevating object is rotated. ing. Then, when the stopper device is released based on the operation of the elevator control lever 29 with the shin rest part 15 disposed at the lower position shown by the solid line in FIG. The guide rod 1 is rotated clockwise in Fig. 4.
After releasing the stopper device based on the operating lever 29 for the elevating object when the shin rest part 15 is in the upper position indicated by the chain line in FIG. , the shin rest 15 can be lowered to a lower position.

(Operation of the invention and mode of use) Now, in the infusion/dialysis chair configured as described above, the backrest body 5 is placed in the upright position as shown by the solid line in FIG. If the shin rest part 15 is placed in the lower position as shown, the leg rest part 15 can be placed at approximately the same height as the seat body 4 when one is sitting on the seat body 4 and leaning one's back against the backrest body 5. 13 fixed supports 14
It is also possible to extend the legs on the shin rest part 15 and use it in a comfortable posture.

From this state, when the backrest control lever 23 is rotated and a backward rotational force is applied to the backrest body 5, the backrest body 5 is rotated to the inverted position as shown by the chain line in FIG. ing. Therefore, in this state, the patient lies down from the backrest body 5 to the seat body 4, extends his legs on the fixed support body 14 and the shin rest part 15, and performs treatment for intravenous drip or dialysis in a resting state for a long time. be able to.

In addition, if it is necessary to lift the shin part of the leg high depending on the type of intravenous drip or dialysis work, etc., by rotating the elevator control lever 29,
The rotary lever 24 is rotated by the action of the actuator 27.
The shin rest 15 is then raised via the guide rod 16 to the upper position shown by the chain line in FIGS. 1 and 4.
Therefore, in this state, the seat body 4 is moved from the backrest body 5.
While lying down, the user can place the shin part of the leg on the shin rest part 15 and stably hold the lower leg at a high position.

In this case, the patient's or user's shin is on the shin rest 15, but the upper surface of the shin rest 15 is always in a horizontal state.
The user's shins do not naturally fall off the shin rests 15. The fact that the user's shin portion on the shin rest portion 15 is always in a horizontal state means that
When moving up and down the patient with various treatment tubes attached to the shank, stable connections of the various tubes are sufficiently ensured.

The above-described support of the shin portion 15 at the upper position of the shin portion may be performed on only one leg or on both legs. It goes without saying that when only the shin portion of one leg is supported by the shin rest 15, the other leg may be placed on the fixed support 14. In either case, the upper surface of the shin rest 15 is approximately horizontal, and the upper surface of the shin rest 15 is maintained in a horizontal state by the guide rod 16 and the guide cylinder 17 when raised and lowered by the actuator 27. Moreover, since the upper surface of the fixed support 14 is also substantially horizontal, the user's shins are always maintained in a horizontal state, and the entire body is stabilized.

The connection of the shin rest part 15 to the actuator 27 is achieved by a guide rod 16 that is guided approximately vertically by the guide cylinder 17 and an approximately L-shaped rotation that is connected between the guide rod 16 and the actuator 27. Since this is done using the lever 24, the actuator 27 can be arranged in a substantially horizontal position, thereby driving the shin rest part 15 even if the vertical space on the chair body 1 side is small. The actuator 27 necessary for this can be interposed within the chair body 1.

Further, when returning from this state to the sitting state, when the backrest operation lever 23 is rotated, the sub actuator 20 and the coil spring 21
By this action, the backrest body 5 is rotated from the reclined position to the upright position. In addition, the operating lever 29 for the elevating object
After the rotation operation is performed, when a downward pressing force is applied to the shin rest part 15, the shin rest part 15 is moved to the lower position.

(Effect of the invention) As detailed above, this invention
5 is assembled so that it can be raised and lowered between a lower position at approximately the same height as the leg rest 13 and an upper position higher than the leg rest 13, so that it can be moved horizontally on a stool for intravenous drips, dialysis, etc. Depending on the type of treatment, the patient's legs can be maintained at approximately the same height as the seated body or at a higher position, and the patient can be kept at rest in that position for a long time. Alternatively, the necessary shin of one leg can be placed in a flat or raised position repeatedly within a range that does not affect intravenous drip or dialysis.

[Brief explanation of drawings]

Figure 1 is a front view of a chair embodying this idea.
Fig. 2 is a plan view thereof, Fig. 3 is an enlarged partial sectional view of the seat body and backrest body, Fig. 4 is an enlarged partial sectional view of the leg rest, and Fig. 5 is a partial sectional view showing the seat body and the backrest portion in an enlarged manner. FIG. 2 is an exploded perspective view of such a chair. Explanation of symbols, 1...Chair body, 4...Seat body, 5
...Backrest body, 13...Leg rest part, 14...Fixed support body, 14a...Opening, 15...Shin rest part, 16...Guide rod, 17...Guide cylinder body, 24...Rotation lever, 27
...actuator, 29...lever for elevating body.

Claims (1)

[Claims for Utility Model Registration] A seat body 4 that supports the waist of a human body, a backrest body 5 provided tiltably to the rear of the seat body 4, and a backrest body 5 provided at the front of the seat body that supports the legs of the human body. This is a chair for intravenous infusion and dialysis, which is constructed by supporting a leg rest 13 supported by the chair body 1. A fixed support 14, and a shin rest 15 which is vertically movably housed in an opening 14a formed in the approximate center of the fixed support 14 and has a substantially horizontal upper surface. 15, a guide rod 16 protruding below the guide rod 16 in a state substantially orthogonal to the upper surface thereof, a guide cylinder 17 that houses the guide rod 16 and is fixed to the chair body 1 side, and a guide rod 16 with a tip end thereof. A substantially L-shaped rotating lever 2 that is connected and pivoted on the chair body 1 side.
4 and an actuator 27 arranged substantially horizontally to rotate the rotary lever 24.
A chair for infusion/dialysis, characterized in that it is supported so as to be movable up and down relative to an opening 14a of a fixed support 14.