KR20160073043A - Bed for medical purposes - Google Patents

Abstract

The present invention relates to a medical bed for preventing falls of a patient, and more particularly, to a medical bed provided with a mat and a bed frame for supporting the mat, the edge of the mat being higher than the center of the mat, And a sloped inclined surface is formed from the edge toward the center of the mat.

Description

{Bed for medical purposes}

The present invention relates to a medical bed for preventing falls of a patient.

Beds are widely used in hospitalized beds due to securing mobility of unconscious patients and ensuring patient height for easy treatment and treatment. The medical bed is equipped with various convenience equipments such as the patient can tilt the bed mat to raise the upper body or raise the leg according to the condition of the patient or the necessity of the meal.

One of the problems caused by using a bed is a patient's fall. Patients who are uncomfortable due to physical conditions or drugs may fall on the bed during sleep, and the height of the medical bed causes a great deal of damage due to falls. Especially in elderly people of many ages and children with insufficient cognitive abilities.

Many techniques have been developed to prevent falls. For example, Korean Patent Laid-Open Publication No. 10-2013-0076922 discloses a device for protecting a patient who is about to fall off a bed with a developed fence by increasing the fence on both sides of the bed. This prior art has the drawback that the deployed fence climbs the patient's torso, arms, and legs, and thus the patient is bruised by the fence.

On the one hand, there has been a technology development for a system for predicting and detecting fall by monitoring the state of falling asleep to one side of the bed before falling. Korean Patent Registration No. 10-0936472 and Korean Patent Laid-Open No. 10-2011-0008644 disclose that a human body detection sensor is used to monitor a precursor of a fall and transmit it to a patient or a nurse through a warning sound or the like. However, it is difficult to expect the patient to react immediately after hearing the warning sound and the nurse who is mainly in the nursing station has time to reach the patient's bed, .

Korean Patent Publication No. 10-2013-0076922 (2013.07.09) Korean Patent Registration No. 10-0936472 (2010.01.05) Korean Patent Publication No. 10-2011-0008644 (Jan. 27, 2011)

The present invention has the object of preventing fall of a patient. Other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description.

According to an aspect of the present invention, there is provided a medical bed provided with a mat and a bed frame supporting the mat, wherein the edge of the mat is higher than the center of the mat, A medical bed for forming a sloping sloping surface toward the central portion is proposed.

Here, the edge of the mat may be elevated while the edge support of the bed frame supporting the edge of the mat is elevated.

Specifically, the bed frame includes a base frame to be raised on the ground, a height adjuster mounted on the base frame and capable of changing the height up and down, the edge supporter supporting the edge of the mat and the height adjuster And may include a power section for operating.

Furthermore, a groove may be formed at the bottom of the edge of the mat, and the edge support may include a grip protrusion inserted into the groove.

In another embodiment, the center support of the bed frame supporting the center of the mat is lowered, and the center of the mat is lowered and the edge of the mat may relatively rise.

In another embodiment, the mat is divided and supported by left and right support plates, and the edge of the mat may be raised while the center of the mat is concave and descending due to seesaw motion of the support plate.

A pressure sensor for detecting a distribution of loads applied to the mat by the compartments of the mat, and a controller for recognizing that the patient is adjacent to one edge of the measured value of the pressure sensor and raising the edge of the mat, And may generate a pre-alarm or pre-vibration before issuing the control signal.

According to the embodiment of the present invention, the edge of the mat rises to take the form of a horse, thereby preventing a fall accident that the patient falls off the bed. In particular, there is no fear of a physical shock due to the rise of the fence employed in the conventional art, because the mattress lying on the patient deforms and the edge rises.

The effects of the present invention will be clearly understood and understood by those skilled in the art, either through the specific details described below, or during the course of practicing the present invention.

1 is a perspective view schematically showing a first embodiment according to an embodiment of the present invention;
2 is a front view showing a specific configuration of the first embodiment;
3 is a schematic perspective view of a medical bed to which the first embodiment is applied.
4 is a perspective view schematically showing a second embodiment;
5 is a front view showing a specific configuration of the second embodiment;
6 is a front view schematically showing a third embodiment;
7 is a front view showing a specific configuration of the third embodiment;
8 is a schematic perspective view of a matrix applied to the third embodiment;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the constitution, function and action of a medical bed according to the present invention will be described with reference to the accompanying drawings. It should be noted, however, that the same reference numerals will be used for the same or similar components throughout the embodiments. FIGS. 2, 5 and 7 show either side of the mat, and the same configuration may be provided on the other side symmetrically.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, therefore, are not to be construed as limiting the technical spirit of the invention. It is to be understood that the invention is not to be limited by any of the details of the description to those skilled in the art from the standpoint of a person skilled in the art that any or all of the drawings shown in the drawings are not necessarily the shape,

Falling during sleep occurs when a patient lying on a medical bed rolls sideways. When the patient is moved to the side edge of the bed (hereinafter referred to as "edge"), when the edge of the mat is properly raised to be higher than the center of the mat, the upper surface of the mat becomes sloped slope toward the center And the patient is faced with a fall and is able to move back to the center of the mat.

On the other hand, it is necessary to keep the mat flat so that the patient can easily ascend and descend on the mat. Flat mats are also advantageous for allowing the patient to take a specific posture if necessary. Therefore, it is preferable that the condition in which the edge of the mat becomes high is limited only to the time when the patient is at risk of falling.

The operation of raising the edge of the mat to cause the body lying on the mat to be pushed to the center of the mat is advantageous in that the impact on the patient is considerably small even if it is done abruptly. The technique adopted in the conventional technique is that the side fence protrudes upward to prevent the body from falling so that there is a high risk of impacting on the legs or head that comes out of the bed during the rising of the fence, . Since the edge of the mat supporting the body rises, the problem of the impact of the fence of the above-described conventional technique is solved.

A method for raising the edge of the mat includes a method of raising the edge of the mat with reference to the basic position of the mat evenly placed on the bed frame, a method of raising the edge of the mat relatively by lowering the center of the mat, And at the same time, the middle portion of the mat is lowered. The difference of this method will be explained by dividing the embodiment.

1 to 3 relate to the first embodiment.

The first embodiment operates in such a manner that the edge 11 of the mat 10 is elevated to roll the mat 10 into a U-shape. An inclined gradient is formed on the upper surface of the mat 10 as the edge 11 of the mat rises when the sleeping patient P moves to the edge of the flat mat 10. [ The edge 11 of the raised mat prevents the patient from falling to the side edge of the bed and guides the patient to move back to the center of the mat along the sloping sloping surface 101 towards the center of the mat.

In the first embodiment, the center portion 12 of the mat maintains the same height, and therefore, the sense of stability felt by the patient is great. It is also easy to apply to bed frame which is widely used.

2 and 3 show the components according to the first embodiment.

3, the bed frame 200 includes a plate member 210 forming an outer shape and a base frame 220 located inside the plate member and substantially supporting the mat.

The base frame 220 includes a bed bridge and a grid structure that is squeezed in the longitudinal direction and the transverse direction. Furthermore, in order to allow the patient to raise the upper body or raise the lower body in the medical bed, the base frame 220 is provided with a third plate 230 for supporting the mat along the longitudinal direction, The upper plate 230 and the lower plate 230 can be tilted. The configuration in which the upper and lower plates 230 can be tilted is the same as that already known, and a description thereof is omitted here.

Configurations for raising the edge of the mat 10 up can be independently mounted according to each plate 230. That is, the configurations of one plate are not physically connected to the configurations of the other plate. Therefore, the structure of raising the edge of the mat in the tilting of the plate 230 does not interfere.

While the operation of raising the edge of the mat up can be configured to occur simultaneously. For example, in the case of being configured to be operated by an electric motor or an actuator, each of the power units may be provided for each plate, and the operation of the power unit can be configured to be simultaneously operated by transmitting a control signal at the control unit.

Although not shown, a configuration for raising the edge of the mat may be provided in only some of the plates. For example, it may be installed only on the intermediate plate and the lower plate, which have a large fall prevention effect, or may be installed only on the intermediate plate. In the embodiment shown in FIG. 3, all the plates 230 are equipped with a device for raising the edges of the mat.

Referring to FIG. 2, an edge support 20 supporting the edge 11 of the mat 10 is provided on the upper part of the bed frame (not shown). The edge support 20 is attached to the height adjuster 30 mounted on the base frame. Further, the height adjuster 30 receives power from the power unit 40 and operates.

In the embodiment shown in detail, the edge support 20 normally remains on the same plane as the plate (see FIG. 3) which supports the mat 10 smoothly. The edge support 20 is elevated higher than the plate 230 and the edge 11 of the mat 10 is raised by the operation of the height adjusting portion 30. [

The height adjusting portion 30 is fixed to the bed frame 200 and extends to the lower portion of the edge support 20 and is formed in a curved shape by a lever bar 31, a pinion 32 connected to the lever bar 31, And a guider 33 for guiding the bar 31. On the other hand, the power unit 40 is a drive motor 41 that rotates the pinion 32 in the forward or reverse direction to raise and lower the edge support 20.

Here, the driving motor 41 and the guider 33 are fixed to the base frame of the bed frame (not shown).

The lever bar 31 is curved in an arc shape, and the guider 33 also has a curved shape corresponding thereto. The recove bar 31 is restrained by the guider 33 and ascends or descends. When the recove bar 31 is bent and viewed from the front (see Fig. 2), the recove bar 31 ascends and descends in accordance with the arc shape trajectory. With this

It is possible to minimize the pulling of the mat 10 due to the rise of the edge, thereby reducing the deformation resistance elements accompanying the elongation of the mat and to naturally form the shape of the mat 10 to be dried in a U-shape.

Particularly, the bent check bar 31 makes it possible to stably support the edge 11 of the mat 10, which has been raised so high, when the edge 11 of the mat 10 is raised as shown in FIG.

If the height of raising the edge of the mat is lowered, or when the mat is sufficiently stretchable, the lecture bar and the guider may be formed in a straight line so that they can move up and down in the vertical direction.

The drive motor 41 and the pinion 32 are for raising and lowering the take-up shaft 31 and a speed reducer may be provided between the drive motor 41 and the pinion 32. The operation of the drive motor 41 can be controlled by a control section described later.

The pinion 32, the recove bar 31, and the drive motor 41 constituting the height adjusting portion 30 and the power portion 40 may be variously changed. The drive motor 41 and the pinion 32 can be replaced with various power sources such as a cylindrical actuator and the lever 31 can be replaced with various lifting mechanisms such as a multi-joint link.

The edge support 20 is a portion in direct contact with the mat 10 and includes an upper flat surface 22 in contact with the bottom of the mat 10 in a flat state and an upper flat surface 22 extending from the flat surface 22, And an inclined surface 23 for supporting the bottom of the inclined mat 10. The flat surface 22 and the inclined surface 23 are configured to contact the mat bottom by a predetermined area or more depending on the position of the mat 10 to prevent tearing of the mat 10 and secure a stable supporting force.

A groove 102 is formed at the bottom of the edge of the mat 10 and the edge support 20 may have a grip protrusion 21 inserted into the groove 102. [

In the drawings, a recess 102 having a hemispherical cross section is formed at the bottom of the mat 10, and a grasping projection 21 having a hemispherical cross section is provided on the flat surface of the edge supporter 20.

The upper surface of the edge supporter 20 slides from the bottom of the mat 10 so that the upper surface of the edge supporter 20 does not slip off because the grip protrusion 21 is inserted into the recess 102. The position of the mat 10 is stably maintained despite frequent lifting and lowering operations, thereby improving operational reliability.

Furthermore, known coupling means may be provided for omitting the groove and the grip projection, and for fixing both the bottom of the mat and the upper surface of the edge support, such as a velcro tape.

Figures 4 and 5 relate to the second embodiment.

The central portion 12 of the flat mat 10 is lowered downward in the second embodiment in such a manner that the edge 11 of the mat 10 is raised so that the edge 11 of the mat 10 is relatively high .

Specifically, a portion for supporting the edge of the mat in the bed frame supporting the mat and a portion for supporting the central portion of the mat (central support) are made independent from each other.

The edge 11 of the mat 10 is lowered by the center support 34 supporting the central portion 12 of the mat 10 while the height of the mat 10 is lowered so that the mat 10 is formed into a U- have. Here, the descent of the center support 34 can be operated by a known lifting unit (not shown) such as an actuator. The center support and the elevation unit function as height adjustment.

5, the bottom of the edge 11 of the mat 10 is hooked on the claw member 50 fixed to the base frame 220 by the spring S. The spring S is bent and then restored and restored, so that the center portion 12 descends and restores the bent mat 10 back to its original position.

The second embodiment in which the central portion 12 of the mat 10 is lowered can be used with a monitoring system for monitoring the posture of the patient to predict fall. That is, when the patient moves to the edge of the bed so that the fall is expected, the center support 34 gradually falls to form the sloping surface 101 from the edge of the mat toward the center, To the central portion 12 of the housing.

6 to 7 relate to the third embodiment.

In the third embodiment, the center portion 12 of the mat 10 is lowered and the edge 11 of the mat is elevated, and the mat 10 is curled in a U-shape. In the third embodiment, the inclined slope 101 can be obtained in a short time, and the operation can be performed quickly. In addition, since the downward movement of the central portion 12 and the upward movement of the edge 11 are simultaneously performed, the bending of the mat 10 can be increased.

FIG. 7 shows a configuration for implementing this. The left and right sides of the mat 10 are respectively supported by a supporting plate 60 which is hinged to a rotating shaft 61 lying in the longitudinal direction of the bed and is capable of seesaw motion. The support plate and mat can be fixed with a Velcro tape.

The center portion 12 of the mat 10 descends while the edge 11 rises at the same time as the support plate 60 seesaw around the rotary shaft 61. [

A spring S is mounted between the base frame 220 and the support plate 60 for quick and reliable operation of the support plate 60. In the illustrated embodiment, a portion of the base frame 220 spaced apart from the lower portion of the support plate and the support plate 60 are coupled in a stretched state. Therefore, when the support plate 60 is horizontal, the support plate 60 receives a force to rotate counterclockwise.

Although not shown, a coil spring may be mounted on the rotary shaft by replacing the spring between the base frame and the support plate.

7, a locking device 62 is provided on the other side of the spring S. The locking device 62 includes a solenoid 621 operated by an operation signal of the control section 70 and a latch 623 fixed to the support plate by being caught by the protruding trigger 622 of the solenoid 621. When the control unit 70 supplies power to the solenoid 621, the protrusion trigger 622 retracts and the coupling with the latch 623 is released. By the restoring force of the spring S, the support plate 60 is rapidly rotated counterclockwise Rotated and restored.

In yet another embodiment not shown, the third embodiment can be constructed by adopting both the edge support of the first embodiment and the center support of the second embodiment together.

Furthermore, in the first to third embodiments, the control unit 70 may further include a drive motor, an actuator, a solenoid 621, and the like.

The control unit 70 may be configured to operate by an external signal to the monitoring personnel observing the patient's condition, or to operate by a self-monitoring system with fall risk determination means.

For example, as shown in FIG. 8, the mat 10 may include a pressure sensor 80 installed in each of the compartments, and sensing a load applied to the compartments. The control unit 70 calculates the position of the patient from the measured values of the pressure sensors 80 and compares it with the reference value of the database stored in advance to calculate the fall risk.

Alternatively, the image of the patient lying on the bed can be acquired using a camera photographing device, and the risk of falling can be calculated by analyzing the image of the patient and tracking the position and posture of the patient on the mat.

In these various ways, the control part can recognize that the patient is adjacent to either edge of the mat and can signal to activate the power part. Furthermore, before changing the mat, a short pre-warning sound or pre-vibration is generated, and the patient is paid attention to the mat change in advance, so that the convenience of use can be further improved.

10: Matt
11: edge 12: central portion 101: slope 102: groove
20: Edge support
21: grip projection 22: flat surface 23: inclined surface
30:
31: Leak bar 32: Pinion 33: Guider 34: Center support
40: power section 41: drive motor
50: claw member S: spring
60: Support plate 61:
62:
621: Solenoid 622: Extrude trigger 623:
70: control unit 80: pressure sensor
200: bed frame
210: plate member 220: base frame 230: plate
P: patient

Claims (8)

In a medical bed provided with a mat and a bed frame supporting the mat,
And a slope inclined downward from an edge of the mat toward a central portion of the mat is formed by varying an edge of the mat higher than a center portion of the mat. The method of claim 1,
Wherein the edge of the mat rises while the edge support of the bed frame supporting the edge of the mat rises. 3. The method of claim 2,
The bed frame
The base frame,
A height adjuster mounted on the base frame and capable of changing the height up and down,
An edge support mounted on the elevation adjusting part and supporting the edge of the mat,
And a power portion for operating the height adjusting portion. 4. The method of claim 3,
A groove is formed at the bottom of the edge of the mat,
And the edge supporting base has a holding protrusion that is inserted into the groove. The method of claim 1,
Wherein a center support portion of the bed frame supporting the center portion of the mat is lowered and a center portion of the mat is lowered and an edge of the mat relatively rises. The method of claim 1,
The mat is divided and supported by support plates provided on the right and left sides,
And the edge of the mat rises while the central portion of the mat is concavely lowered by seesaw motion of the support plate. The method of claim 1,
A pressure sensor installed on each of the mats to sense a distribution of loads applied to the mats,
And a control unit for recognizing that the patient is adjacent to one of the edges from the measured value of the pressure sensor and issuing a control signal for raising the edge of the mat. 8. The method of claim 7,
The control unit
And generates a pre-alarm or pre-vibration before issuing the control signal.

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