MULTIFUNCTIONAL MEDICAL BED

Abstract

A multifunctional medical bed that can be used to care for patients who are required to periodically change their body position. The claimed multifunctional medical bed solves the problem of creating a bed with the possibility of safe movement of the patient and his or her positioning into a prone position in combination with functions for the prevention of pulmonological and cardiovascular complications associated with immobility of the patient.

Claims

1. A multifunctional bed comprising: a bed base frame connected to a couch base frame, two couches installed on the couch base frame, two lower leg sections, two thigh sections, two hip sections, and two back sections attached thereto, wherein the change in the height of the couch base frame, the rotation of the couch base frame about the longitudinal and transverse axes of rotation are carried out by means of three basic drive mechanisms mounted on the bed base frame, additional drive mechanisms are mounted on the couch base frame to rotate the couches about the longitudinal axis of rotation relative to each other, the lower leg sections are configured to rotate below the horizontal axis of the couches, the hip sections are fixed, the sections are configured to change the position by means of the movable section drive mechanism, independently of the drive mechanisms of other sections.

2. The multifunctional bed according to claim 1, wherein the two couches are connected to the couch base frame by articulated connections located in the central part of the couch base frame.

3. The multifunctional bed according to claim 1, wherein the basic drive mechanisms are made in the form of actuators having three lifting arms with hinged joints.

4. The multifunctional bed according to claim 3, wherein the lifting arms are angled to the bed base frame.

5. The multifunctional bed according to claim 1, wherein the direct connection of the bed base frame to the couch base frame is provided by three basic drive mechanisms.

6. The multifunctional bed according to claim 5, wherein electric columns are used as the basic driving mechanisms.

7. The multifunctional bed according to claim 1, wherein the main side rails are mounted on two couches.

8. The multifunctional bed according to claim 7, wherein each main side rail consists of at least two panels.

9. The multifunctional bed according to claim 8, wherein at least one main side rail panel is mounted on the back section.

10. The multifunctional bed according to claim 1, wherein the bed further comprises foldable additional side rails.

11. The multifunctional bed according to claim 1, further comprising sliding wheels on which the bed base frame is mounted.

12. A method of using multifunctional bed comprising a bed base frame connected to a couch base frame, two couches installed on the couch base frame and connected to the couch base frame, two lower leg sections, two thigh sections, two hip sections, two back sections, basic drive mechanisms, additional drive mechanisms, and section drive mechanisms, wherein: a control device is used to transmit a signal to a switching module, the signal from the switching module is transmitted to one or more drive mechanisms, the drive mechanisms are opened and/or closed, wherein change in the height of the couch base frame, the rotation of the couch base frame about the longitudinal and transverse axes of rotation are carried out by means of three basic drive mechanisms installed on the bed base frame, rotation of the couches about the longitudinal axis of rotation relative to each other is carried out using the additional drive mechanisms, position of each section is changed using the section drive mechanisms, independently of other drive mechanisms of other sections, rotation of the lower leg sections below the horizontal axis of the couches is carried out while maintaining the position of the couch base frame.

13. The method of using the multifunctional bed according to claim 12, wherein the couch base frame is additionally rotated about the longitudinal axis of rotation by opening the basic drive mechanism on one side of the bed, while simultaneously closing the basic drive mechanism on the other side of the bed.

14. The method of using the multifunctional bed according to claim 12, wherein the couch base frame is additionally rotated in the transverse axis of rotation by opening the basic drive mechanisms in the leg of the bed while closing the basic drive mechanism in the head of the bed.

15. The method of using the multifunctional bed according to claim 12, wherein the couch is additionally rotated about the longitudinal axis of rotation by opening an additional drive mechanism.

16. The method of using the multifunctional bed according to claim 12, wherein the sections are additionally rotated by opening or closing section drive mechanisms.

Description

DESCRIPTION OF THE DRAWINGS

[0023] The subject matter of this application is described point by point and clearly stated (described) in the claims. The foregoing objects, features and advantages of the invention will be apparent from the following detailed description in connection with the accompanying drawings, in which:

[0024] FIG. 1 shows a multi-functional bed with lifting arms;

[0025] FIG. 2 shows a multifunctional bed with electric columns;

[0026] FIG. 3 shows a multifunctional bed with sections (top view);

[0027] FIG. 4 shows a multifunctional bed in the position when the “bicycle” function is activated;

[0028] FIG. 5 shows a gear train of the main side rails;

[0029] FIG. 6 shows a multifunctional bed in a “cardiac chair” position;

[0030] FIG. 7 shows a multifunctional bed with additional side rails;

[0031] FIG. 8a shows block diagram of the steps of raising and lowering the couch base frame.

[0032] FIG. 8b shows block diagram of the steps of rotation of the couch base frame about the longitudinal axis of rotation;

[0033] FIG. 8c shows block diagram of the steps of rotation of the couch base frame in the transverse axis of rotation;

[0034] FIG. 8d shows block diagram of the steps of rotation of the couches about the longitudinal axis of rotation relative to each other.

[0035] These figures are explained by the following positions: 1 is a multifunctional bed, 2 is a bed base frame, 3 is a lifting arm, 4 is a drive mechanism (actuator), 5 is a couch base frame, 6 is a couch, 7 is a pair of sliding wheels, 8 are systems of levers for moving the couches, 9 is a hinged joint between the bed base frame and the lifting arms, 10 are electric columns, 11 is the main side rail (leg), 12 is the main side rail (central), 13 is the main side rail (head), 14 is a hinged joint between the couches and the couch base frame, 15 are additional drive mechanisms, 16 is hinged joint for movement of sections, 17 are section drive mechanisms, 18 is a lower leg section, 19 is a thigh section, 20 is a hip section, 21 is a back section, 22 are foot stops, 23 is a drive mechanism for movement of the main side rails (central), 24 is an articulated connection of side rails and couches, 25 is a gear train of the main side rail, 26 is a hinged joint between the bed base frame and the actuator, 27 is a hinged joint between the lifting arm and the actuator, 28 is a hinged joint between the couch base frame and the actuator, 29 is an additional side rail, 30-37 are described in the text below.

DETAILED DESCRIPTION OF THE INVENTION

[0036] In the following detailed description of the invention, numerous implementation details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art how the present invention can be used, with or without these implementation details.

[0037] FIG. 1 shows a multifunctional bed (1) designed to move a patient in the bed without the use of human physical force, the bed comprises a bed base frame (2), lifting arms (3), drive mechanisms in the form of actuators (4), a couch base frame (5), and two couches (6). Also FIG. 1 shows the main side rail with leg (11), central (12), and head (13) panels.

[0038] Bed Base Frame

[0039] The bed base frame (2) may comprise at least one pair of sliding wheels (7) to ensure the stability of the structure. It also allows the bed to be moved in any direction. The wheels (7) are moved apart by drive mechanisms, which are also installed on the bed base frame (2), increasing the support area when the bed is stationary.

[0040] Drive Mechanisms and Lifting Arms

[0041] FIG. 1 shows one of the embodiments of the invention where the couch base frame (5) is moved by three basic drive mechanisms (4). The use of three basic drive mechanisms (4) ensures the inclination of the couch base frame (5) along two axes: longitudinal to the left and to the right for lateral inclination, as well as transverse. Actuators (an actuating device with or without a motor, which is electromechanical or mechanical, controlled by a control device) (4) or electric columns (10) of FIG. 2 can be used as basic drive mechanisms (4).

[0042] In one embodiment, when using actuators (4) as basic drive mechanisms, lifting arms (3) are used. In this case, the lifting arms (3) are mounted on the bed base frame (2). Hinged joints (9) are installed at the points of attachment of the lifting arms (3) to the bed base frame (2). Each lifting arm (3) is capable of performing movement without engaging (driving) the remaining lifting arms (3), which makes it possible to rotate the couch base frame (5) about the longitudinal and transverse axes. Any type of lifting arms (3) can be used, including composite and solid ones. The lifting arms (3) are located at an angle to the bed base frame (2), which allows a smooth change in the position of the couch base frame (5) relative to the longitudinal and transverse axes. The actuators (4) are installed on the bed base frame (2). Hinged joints (26) are installed at the points where the actuators (4) are attached to the bed base frame (2). In this case, one actuator (4) drives one lifting arm (3). Hinged joints (27) are installed at the points of attachment of the actuator (4) to the lifting arm (3). The lifting arms (4) are mounted in a scissor-to-cross pattern. This arrangement of the lifting arms (4) on the bed base frame (2) is due to the fact that this combination makes it possible to evenly distribute the load on the lifting arms (4) and achieve the stated technical results of the bed.

[0043] In one of the embodiments, electric columns (10) are used as the basic driving mechanisms. This embodiment is shown in FIG. 2. The electric columns (10) make it possible to avoid use of lifting arms.

[0044] The basic drive mechanisms (4, 10) can be configured to actuate (open or close) an individual drive mechanism (4, 10), without involving the rest of the basic drive mechanisms (4, 10) of the bed, which expands the possibilities for the motion of the bed couch base frame, in particular, contributes to the inclination of the couch base frame (5) relative to the longitudinal and transverse axes, movement along the vertical axis.

[0045] Couch Base Frame

[0046] The couch base frame (5) can be mounted on lifting arms (3) as shown in FIG. 1. In this case, at the attachment points of the three lifting arms (3) to the couch base frame (5) hinged joints (28) are used, as shown in FIG. 4. Also, the couch base frame can be mounted on the electric columns (10), as shown in FIG. 2, using articulated connections. The couch base frame (5) serves to install two couches (6) thereon, wherein each couch comprises: three rotatable main side rails (11, 12, 13), one foldable additional side rail (29) of FIG. 7 and a drive mechanism (23) for the movement of three main side rails. There are also additional drive mechanisms on the couch base frame that ensure the movement of both couches (15). The couch base frame (5) is capable of rotating about the longitudinal axis of rotation in the angular range from −20° to 20°, and about the transverse axis of rotation in the angular range from −35° to 35°.

[0047] Two Couches

[0048] FIG. 3 shows a multifunctional bed comprising two couches (6) installed on the couch base frame (5). Both couches (6) comprise hinged joints (14) at the points of attachment to the couch base frame (5), which are located in the central part of the couch base frame. The couches (6) are installed in such a way that they can rotate about the longitudinal axis of the bed, from 0° to 85° in the opposite direction. The rotation is carried out by an additional drive mechanism for the movement of the couches (15), located on the couch base frame (5), and a system of levers (8), as shown in FIG. 4. This contributes to the achievement of the technical result, which consists in moving the patient in the bed without using the physical force of a person, including moving to a prone position.

[0049] Movable Sections of the Multifunctional Bed

[0050] The multifunctional bed sections are used to change the position of the lower leg (tibia and fibula), femur and back. The claimed multifunctional bed has 8 sections: two symmetrical lower leg (18), two symmetrical thigh (19), two symmetrical hip (20), and two symmetrical back (21) sections. The lower leg (18), thigh (19), and back (21) sections are movable and comprise hinged joints (16). The lower leg (18) section is connected through a hinged joint (16) to the thigh section (19). The thigh section (19) is connected through a hinged joint (16) to the fixed hip section (20). The fixed hip section (20) is connected through a hinged joint (16) to the back section (21).

[0051] The lower leg sections (18) do not rest on the couch, which allows the bed to be placed in “cardiac chair” mode without moving all sections of the bed forward. Therefore, a person is moved to the “cardiac chair” position with a minimum set of actions. The hip sections (20) are fixed relative to the movable sections, since the hip sections (10) are parts of the assemblies of the left and right couches (6) frames. The thigh (19) and back (21) sections are mounted on the couches (6). The location of the lower leg (18), thigh (19), hip (20), and back (21) sections is shown in FIG. 3.

[0052] To ensure the angle of raising/lowering of the movable sections (18, 19, 21) relative to the couches, the drive mechanisms (17) of the sections are used. The lower leg sections (18) are moved by opening/closing the drive mechanisms (17) for the movement of the sections installed and resting on the thigh sections (19). The thigh sections (19) are moved by opening/closing the drive mechanisms (17) for the movement of the sections installed and resting on the couches (6). The back sections (21) are moved by opening/closing the drive mechanisms (17) for the movement of the sections, installed and resting on the couches (6). All drive mechanisms (17) for the movement of the sections have hinge joint (16) at the points of attachment to the lower leg (18), thigh (19), and back (21) sections or couches (6).

[0053] The lower leg sections (18) are equipped with foot stops (22). The foot stops (22) are necessary to support the patient's feet and have a manual analog (smooth) mechanism or drive mechanisms (actuators) for adjusting the length of the panel overhang

[0054] Main Side Rails

[0055] On one side of each couch (6), rotatable main side rails (11, 12, 13) are mounted by means of articulated connections (24) through a gear train (25), which makes it possible to change the angle between the main side rails (11, 12, 13) and couches (6) from 90° to 270°. The gear train is shown in FIG. 5. The movement of the couches is possible not only using the gear train, but also using lever mechanisms, etc. It is possible to use two main side rails, one of which is attached to the back section. Changing the angle makes it possible to adjust the bed space with an orientation to the patient's size, ensures safety during transportation, and is an integral part of the patient turning mechanism. The main side rails (11, 12, 13) consist of central panels (12) with drive mechanisms for the movement of the side rails (23), and also of head side panels (13) and leg side panels (11) without drive mechanisms. The head (13) and foot (11) panels are configured to rigid connection with the central panel (12), which allows changing the angle between all sections and couches (6) simultaneously.

[0056] Additional Side Rails

[0057] FIG. 7 shows the multifunctional bed with additional side rails (29), which are used as a lever to move the patient across the mattress by pulling the sheet. In this case, the sheet is thrown over the additional side rails (29) and fixed on the main side rails (11, 12, 13). The main side rails (11, 12, 13) are moved to a position where the angle between the main side rails and the couch is 270°. By means of which the sheet is pulled, thrown over the additional side rails (29), and the patient is pulled up, sliding on the sheet over the mattress, towards one side of the bed. Foldable additional side rails are mounted on the couch frame by means of bolt connections.

[0058] Drive Mechanism Control Device

[0059] The drive mechanisms (4, 10, 15, 17, 23) are actuated using a control device such as a remote control device. The main remote control device is managed by the medical staff, auxiliary device is managed by the patient. If the remote control device fail, the drive mechanisms (4, 10, 15, 17, 23) are controlled by a controller using a switching module according to the algorithm specified by the program. It is possible to reboot the electronic system, in the event of errors in operation, using the control device and controller, when the drive mechanisms (4, 10, 15, 17, 23) are brought to the initial (zero) position, in which all sections are in horizontal position, the main side rails (11, 12, 13) are located in the “up” position, and the height of the couch (6) is set in the range from 450 to 1000 mm from floor level. Power supply and battery recharging are performed through a cable from a standard power outlet. An electronic panel can be used as the control device.

[0060] Procedure for Section Position Change

[0061] The movement of the couch base frame, the couches themselves and the sections of the bed to move the patient is carried out as follows:

[0062] FIG. 8a shows block diagram of the steps of raising and lowering the couch base frame, which are performed as follows: the control device sends a signal to the switching module (30). The switching module transmits the signal to move apart (open) the basic drive mechanisms (4, 10), with (3) or without (31) lifting arms, in case of raising or to move them together (close) in case of lowering. The basic drive mechanisms are opened/closed at the same speed, synchronously and in the same direction (32).

[0063] FIG. 8b shows block diagram of the steps of rotation of the couch base frame about the longitudinal axis of rotation, which are performed as follows: the control device sends a signal to the switching module (30). The switching module transmits the signal to open or close the basic drive mechanisms (4, 10), with (3) or without (33) lifting arms. The drive mechanism on one side is opened, while the opposite drive mechanism on the other side of the bed is closed. In this case, the basic drive mechanisms (4, 10) are moved apart (opening)/moved together (closing) at the same speed, asynchronously and in different directions (34).

[0064] FIG. 8c shows block diagram of the steps of rotation of the couch base frame in the transverse axis of rotation, which are carried out as follows: the control device sends a signal to the switching module (30). The switching module transmits the signal to move apart (open)/move together (close) the basic drive mechanisms (4, 10) in the leg of the bed in one direction, and, if necessary, simultaneously move apart (open)/move together (close) the drive mechanism (4, 10) in the head of the bed in the opposite direction (35), which mechanisms are located between the bed base frame (2) and the couch base frame (5). In this case, the basic drive mechanisms (4, 10) are moved apart (opening)/moved together (closing) at the same speed, asynchronously and in different directions (34).

[0065] FIG. 8d shows block diagram of the steps of rotation of the couches about the longitudinal axis of rotation relative to each other, which are carried out as follows: the control device sends a signal to the switching module (30). The switching module transmits the signal to move apart (open) one of additional drive mechanisms (36) for movement of the couches (15), fixed on the couch base frame (5), to one of the couches (6). One of the couches (6) is rotated through an angle of 85° (37).

[0066] When activating the “cardiac chair” function from the operator's control device or from the patient's control device, the switching module transmits the signal to move apart (open) the drive mechanisms of the back section (21) installed on the couch (6), and to move together (close) the drive mechanisms of the lower leg section (18) installed on the couch (6). The drive mechanisms of the back and lower leg sections work in parallel and take a position according to a programmed command, namely, transferring a person to a sitting position with a raised back section (21) and a lowered leg section (18). The position of the “cardio chair” is shown in FIG. 6.

[0067] When the “cardiac resuscitation” function is activated from the operator's control device or mechanically, the sections installed on the couches (6), if they were raised/lowered, take a horizontal position by moving apart/moving together the drive mechanisms of the corresponding sections of the couches (6). The basic drive mechanisms (4, 10), with or without lifting arms (3), lower the couch base to a height of 450 mm (minimum couch height).

[0068] When the “Fowler” function is activated from the operator's control device or from the patient's control device, the switching module sends the signal to move apart (open) the drive mechanisms of the back sections (21) installed on the couches (6), while the range of adjustment of the tilt angle of the back section of the couch ranges from 45 to 60°. The back section (21) is in the raised position.

[0069] When the “bicycle” function is activated from the operator's control device, the switching module transmits a signal to move apart (open) one drive mechanism of the thigh section (19) installed on one couch (6). The corresponding thigh section (19) is rotated up to an angle of 20°. In this case, the thigh section (19), the drive mechanism of which is not involved, is in a horizontal position. At the same time, a signal is sent to move together (close) one drive mechanism of the lower leg section on the same side (18). The corresponding lower leg section (18) is rotated through an angle that ensures that the section is always horizontal. When reaching the end position of the involved thigh section (19) for the “bicycle” function, the engaged drive mechanism of the thigh section (19) is stopped and begins to reverse until the involved thigh section (19) returns to a horizontal position. In this case, the lower leg section (18) remains in a horizontal position due to the return stroke of its drive mechanism. Then these operations are repeated for the previously unused thigh (19) and lower leg (18) sections. The thigh (19) and lower leg (18) sections are raised alternately during the “bicycle” function. The position occupied when the “bicycle” function is activated is shown in FIG. 4. By mechanically changing the position of the limbs, the “bicycle” function allows the preventive measures against vascular complications, muscle atrophy to be taken.

[0070] A dynamic system that changes the couch of the bed and a massage system make it possible to prevent pressure ulcers; facilitate medical and diagnostic manipulations for the patient, including radiography of the chest cavity organs in frontal and lateral projections; allow safely transporting the patient to any hospital room. Due to regular changes in body position (lateral tilt, turning over on the belly), it is a means of treating pulmonary complications resulted from prolonged horizontal position of the patient;

[0071] In the present application materials, a preferred disclosure of the implementation of the claimed technical solution is presented, which should not be used as limiting other, particular embodiments of its implementation, which do not go beyond the claimed scope of legal protection and are obvious to specialists in the relevant field of art.