JP4155622B2 - Roll over bed - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bed capable of preventing pressure sores by turning a patient over without helping people.
[0002]
[Prior art]
If a patient is left standing for a long time on the bed, pressure ulcers are likely to occur at sites that are subject to continuous pressure. The most effective method of preventing pressure ulcers is a change of position, which should be done at least every 2 hours or at least 15 times a day. Usually, this posture change must be performed with great care so as not to cause pain to the patient by lifting the patient by multiple persons, which requires a great deal of labor.
[0003]
[Problems of the Invention]
Therefore, a so-called rolling bed has appeared in which the floor is vertically folded and tilted together with the mattress. However, this bed only tilts the bed while the patient is lying on it, and the state in which the human body is crimped to the bed does not change. However, for the prevention and treatment of pressure ulcers, it is important to distribute air to the part where pressure ulcers occur.
[0004]
Accordingly, an object of the present invention is to change the posture of a patient, and at the same time to release the pressure applied to the bed of the body so that air can be circulated.
[0005]
[Means for solving problems]
In order to solve the above-described problems, in the present invention, a guard frame that can be raised and lowered is attached to a pair of side frames, a means for raising and lowering each guard frame is provided, and a sheet for putting a patient on the upper end of the guard frame is provided. Means for locking the side edge portions are provided , and one side of the sheet is lifted by raising one guard frame so that the posture of the patient can be changed . In addition, it is preferable to provide a control unit for driving the lifting and lowering means of the guard frame by inputting a period for changing the posture of the patient and the number of times of posture change or a time interval within the period.
[0006]
The lifting / lowering means of the guard frame can be constituted by a pantograph mechanism formed by a link and a drive means for moving the lower end of the link of the pantograph mechanism to approach or separate.
[0007]
Further, the lifting means for the guard frame may be constituted by a cylinder having a cylinder rod connected to the guard frame.
[0008]
Embodiment
Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, a pair of casters 1a and 2a are attached to the lower edges of the end plates 1 and 2 so that the bed can be moved. Connected by shaped side frames 3,3. A floor plate 4 is supported between the side frames 3 and 3.
[0009]
A support bar 5 is attached to the center of the upper surface of each side frame 3 in the length direction of the side frame 3, and a guard frame 5a for preventing the human body from falling from both sides of the bed. Is fixed. Of course, the guard frame 5a can be detachably attached to the support bar 5.
[0010]
A rotating shaft 6 is attached to the side frame 3 along its length direction, and the shaft 6 is rotationally driven by a motor 7. The rotating shaft 6 is formed with a positive screw 6a and a reverse screw 6b at both ends, and pantograph mechanisms 8 and 8 are attached to the screws 6a and 6b. Nuts 8a and 8b that engage with the screws 6a and 6b are attached to the lower ends of the links forming the respective pantograph mechanisms 8, and the links are connected to the nuts 8a and 8b on a vertical surface parallel to the side surface of the bed. The upper end of the link is connected to the support bar 5 so as to be rotatable between vertical surfaces parallel to the side surface of the bed. Therefore, when the shaft 6 is rotationally driven by the motor 7, the nuts 8a and 8b approach each other, and the guard frame 5a is lifted together with the support bar by the pantograph mechanism 8 as shown by a chain line. 8b separates and the guard frame 5a descends to the position of the solid line.
[0011]
A method of using the lifting mechanism for the guard frames 5a and 5a as described above will be described with reference to FIG. First, the both sides of the sheet S laid on the mattress M are securely fastened to the upper ends of the guard frames 5a and 5a with a clip C or the like, and the sheet S is secured to the guard frame as shown by the solid line in the figure. It supports in the state which hung down in circular arc shape from the upper end of 5a, 5a. Then, when the patient H is laid on the sheet S and needs to change his position, when the one motor 7 is driven as described above and the one guard frame 5a is raised, the sheet S moves along with the chain line. Therefore, the human body H is lifted on one side together with the sheet S as shown by a chain line, and the angle changes. Similarly, when the other motor 7 is driven and the other guard frame 5a is raised, the other side of the human body H is lifted and the posture changes. Thus, in order to lift the sheet S and change the posture, air flows through the gap between the sheet S and the mattress M, and removes sweat and moisture, and at the same time allows skin respiration and effectively prevents pressure ulcers. In the case of FIG. 3, the posture change from the supine position to the lateral position is shown. However, even if the initial position is the lateral position, the posture change is possible in the same manner.
[0012]
It is possible to automatically control the posture change described above. For example, a control unit 10 composed of a microcomputer as shown in FIG. 4 is provided, and a period for changing the position (for example, from 10:00 pm to 6:00 the next morning), the number of positions changed during that period, a time interval, etc. Then, the controller 10 changes the posture by driving the motors 7 and 7 in accordance with the input values using the embedded software. Of course, the operation key 11 can be provided with a key capable of operating the motors 7 and 7 at any time.
[0013]
In addition, the raising / lowering mechanism of the guard frames 5a and 5a is not limited to the above-described embodiment. For example, a cylinder rod of a hydraulic cylinder operated by a small hydraulic pump may be connected to the guard frames 5a and 5a to be raised and lowered. .
[0014]
As shown in FIG. 5, when the floor plate 4 can be bent by a plurality of bent portions 4a, 4b, 4c, and appropriate link means 12a, 12b are pushed in the direction of the arrow in the figure by driving means (not shown), the floor plate 4 Stands up like a chain line, and conversely, when the link means 12a, 12b are pulled, the floor plate 4 becomes flat. Such a raising and lowering mechanism can be mounted on the bed together with the lifting mechanism of the guard frames 5a and 5a.
[0015]
【effect】
According to the present invention, as described above, the lifting mechanism for lifting the bed sheet is provided, and the posture is changed together with the lifting of the sheet. Therefore, a gap is generated between the human body and the mattress, and moisture or sweat is generated. It is easy to dissipate, and skin respiration is also possible, which is extremely effective for the prevention and treatment of pressure ulcers.
[Brief description of the drawings]
FIG. 1 is a partially broken side view showing an example of a turning bed according to the present invention. FIG. 2 is an enlarged cross-sectional view of the same. FIG. 3 is a front view for explaining the operation of the same. Block diagram [Figure 5] Side view showing the outline of the hoisting mechanism [Explanation of symbols]
C Locking tool H Human body M Mattress S Sheet 1, 2 End plate 1a, 2a Caster 3 Side frame 4 Floor plate 4a, 4b, 4c Bending part 5 Support bar 5a, 5a Guard frame 6 Rotating shaft 6a, 6b Screw 7 Motor 8 Pantograph Mechanism 8a, 8b Nut 10 Control part 11 Operation key 12a, 12b Link means

Claims (4)

A guard frame that can be raised and lowered is attached to a pair of side frames, a means for raising and lowering each guard frame is provided, and a means for locking a side edge of a sheet that lays a patient on the upper end of the guard frame is provided . A roll-up bed in which one side of the sheet is lifted by the rising of the frame so that the posture of the patient can be changed .   2. The bed according to claim 1, further comprising a control unit configured to input a period for changing the posture of the patient and the number of times of posture change or the time interval within the period to drive the lifting and lowering means of the guard frame. The bed according to claim 1 or 2 , wherein the lifting and lowering means of the guard frame comprises a pantograph mechanism formed by a link and a driving means for moving the lower end of the link of the pantograph mechanism closer to or away from the pantograph mechanism. The bed according to claim 1 or 2 , wherein the lifting and lowering means of the guard frame comprises a cylinder having a cylinder rod connected to the guard frame.

Images