Multi-position bed for long-term patients

Abstract

The present invention relates to a long-term bed for supporting the recovery of patients, said bed having multiple positions to make the patient's stay more comfortable. These multiple positions reduce pressure points in order to prevent wounds from forming on the patient's skin. Furthermore, the bed of the present invention helps the recovery of patients by providing exercises that continuously move the legs, preventing the loss of mobility and the possible formation of blood clots. For this, the bed has a touchscreen that the patient can use either by themselves or with the assistance of a relative. The touchscreen has a specific program for the bed to adopt the following positions: lying down with extended legs, standing with extended legs, lying down with lifted legs, lying down with extended legs, continuous leg movement in the lying position and continuous back movement from a horizontal to inclined position with the entire body in a seated position.

Description

[0001] MULTI-POSITION BED FOR LONG-TERM PATIENTS.

[0002] TECHNICAL FIELD

[0003] The present invention relates in general to health equipment technologies and more particularly to a long-stay bed and support for patient recovery, in this case one that can have multiple positions to make the patient's stay more comfortable.

[0004] BACKGROUND OF THE INVENTION

[0005] Currently, there are various hospital beds that allow a patient on the bed to activate a series of functions via a screen or touch control, enabling movement of the backrest and legs in different positions. However, none of them have managed to make the bed a true recliner that can also raise the patient from a fully reclined position to a fully upright position without physical effort from either the patient or the caregiver.

[0006] Some patent documents and internet documents that fall within the same technical field, namely hospital beds that can be moved into various positions, are the following:

[0007] Chinese patent application number CN 101828998 A, which describes a hospital bed that allows the patient to lie down, sit up, and stand up, wherein the hospital bed comprises a bed support frame, a bed plate frame, and a bed plate, and is characterized in that: the bed plate consists of an upper turned plate, a fixed plate, and a lower turned plate; the upper turned plate is movably fixed to the bed plate frame by means of rotating axes of the upper turned plate on two sides of the bed plate frame; the lower turned plate is movably fixed to the bed plate frame by means of rotating axes of the lower turned plate on two sides of the bed plate frame; a starting lever with a turned plate is arranged in the bed plate frame by means of a rotating axis of the starting lever with a turned plate that is arranged in the bed plate frame;One end of the turntable start lever rests against the back of the upper turntable, and the other end of the turntable start lever rests against the back of the lower turntable; a bedplate frame pivot axle is arranged between the bed support frame and the bedplate frame; a traction wheel is arranged on the bed support frame; and a traction rope is attached to the lower end of the lower turntable.

[0008] The present invention differs from Chinese patent application number CN 101828998 A, in that application the bed is operated by means of a lever that rotates a wheel that transmits movement to a rope that moves the rest of the parts; whereas in the present invention the bed is operated by means of a touch screen that activates the primary (9) and secondary (10) motors, which, when contracted or stretched, move the rest of the components.

[0009] Another document within the same technical field is Chinese patent application number CN 107374860 A, which relates to a multifunctional hospital bed for a paralyzed patient; comprising a fixed bed frame, a movable bed frame, and a mattress, and characterized in that the fixed bed frame comprises a support grid; the movable bed frame comprises an upper section bed frame, a middle section bed frame, and a lower section bed frame; the upper and lower ends of the middle section bed frame are respectively hinged to the upper section bed frame and the lower section bed frame; wheels are arranged under the middle section bed frame; and the movable bed frame is movably arranged on the support grid.The mattress comprises an upper section mattress, a middle section mattress, and a lower section mattress; the upper and lower ends of the middle section mattress are respectively articulated to the upper and lower section mattresses; the upper surface of the mobile bed frame is provided with rails, the lower surface of the mattress is provided with sliding wheels, and the mattress is arranged in the mobile bed frame through the connection between the rails and the sliding wheels.

[0010] The present invention differs from Chinese patent application number CN 107374860 A, in that said application describes a bed having a support grid and hinges, as well as wheels and rails between the mattress and the bed frame; whereas the bed of the present invention uses fittings, screws, nuts, bearings, and bushings as supports and pivot points.

[0011] Chinese patent application No. CN 110353912 A, describing a special hospital bed for heart failure patients, wherein the bed comprises a bed frame and a cushion frame, wherein first rotating assemblies are arranged in three positions on each of the two sides of the bed frame, second rotating assemblies are arranged in three positions on each of the two sides of the cushion frame, clamping boxes are fixedly connected to the two sides of the front end of the bed frame respectively, clamping rods are fixedly connected to the two sides of the front end of the cushion frame respectively, clamping rods and clamping boxes are vertically joined to each other and clamped upwards and downwards, first support rods are fixedly connected to the left and right ends of one side of the lower end of the bed frame,The second set of support rods is fixed to the left and right ends of the lower end of the bed frame, respectively, and the third set of rotating assemblies are arranged on the two sides of the upper end of each second set of support rod, respectively. Rotation of the bed frame and cushion can be achieved through the first and second sets of rotating assemblies, and the positions of the bed frame and cushion after rotation can be fixed using the first and second sets of rotating assemblies.

[0012] The present invention differs from Chinese patent application No. CN 110353912 A, in that said application describes a bed having a base and mattress that are articulated by means of six pieces called “rotating assemblies” which are composed of a clamping box and a rod arranged on the sides, these pieces move and support the bed components; whereas the present invention uses motors located in different parts of a fixed base, for these same purposes, but the functionality of uprighting or sitting the patient effortlessly by only using a touch screen generates a great advantage to the patient.

[0013] Chinese patent application No. CN 111134985 A, the document discloses a seat for a critically ill patient to sit beside a bed, wherein the seat comprises symmetrically distributed support frames, wherein each support frame comprises an upper end support and a lower end support; each lower end support is fixedly mounted to the lower end of one side of the corresponding upper end support; a hinged backplate is disposed between the sides, back to the lower end supports, of the upper end supports; a movable groove is formed on one side of each upper end support; an adjustment column is disposed in each movable groove and is rotatably connected to the movable groove; external threads are formed on each adjustment column; each adjustment column is cooperatively connected to an adjustment block in a threaded manner;Each adjustment block slides along its corresponding movable groove; a connecting rod is positioned between each adjustment block and the support plate; one end of each connecting rod is hinged to the corresponding adjustment block and the other end to the support plate. The seat surrounds the patient, thus improving the safety of the patient sitting at the side of the bed; the seat is mounted securely to the edge of a sickbed via an adjustment clamping plate; and the backrest plate is tilted to allow the patient to sit in a space between the seat's support frames or for the backrest to be positioned at the optimal tilt angle; one end of each connecting rod is hinged to the corresponding adjustment block and the other end to the support plate.

[0014] The present invention differs from Chinese patent application No. CN 111134985 A, in that the application describes a seat with a reclining backrest mounted on the sides of a bed; whereas the present invention provides the ability to seat the patient and also to lift him by means of electric motors.

[0015] Chinese Utility Model No. CN 204484552 U describes an integrated bed and chair type nursing hospital bed, consisting of a bedside table, a bed frame, eight bed legs, universal casters, and an IV stand. The bed frame comprises a first bed frame and a second bed frame; three square wooden boards are connected by folding supports. The first bed frame is connected to the second bed frame by the bed legs. The eight bed legs are placed on the underside of the bed frame, and the universal casters are arranged on the bed legs at the four corners of the bed frame.The bed leg mounted on the lower surface of the first square wooden board of the first body of the bed board can be folded via a rotating axle; the headboard is connected to the second body of the bed board via a rotating axle; the infusion stand is arranged on the bed board and is connected to the bed board via a support rod; the support rod comprises two parts; a locking pin is arranged on the support rod; a cross board is arranged in position, near the headboard, of the bed board; and a trash box and a storage box are arranged between the cross board and the bed board.

[0016] The present invention differs from Chinese utility model No. CN 204484552 U, in that said model describes a nursing hospital bed with an integrated chair; whereas the bed of the present invention was designed specifically for patients, eliminating even the use of nurses to help the patient sit up. This is achieved because of the electric motors that the bed has, which allow the patient to sit up in different positions, by means of a touch screen that activates said electric motors.

[0017] Chinese Utility Model No. CN 210962734 U, and refers to a wheelchair bed comprising a bed frame and a fully reclining wheelchair frame, a butt joint notch is used to match with the fully reclining wheelchair frame in an inserted manner is formed in the middle of the tail end of the bed frame, butt joint sliding grooves are formed on the left side face and right side face of the butt joint notch respectively, and the butt joint sliding grooves extend towards the headboard of the bed along the tail end of the bed frame.The fully reclining wheelchair body comprises a movable wheelchair frame, a cushion frame fixed to the upper end of the wheelchair frame, a backrest frame hinged to one end of the cushion frame, a slanted leg frame hinged to the other end of the cushion frame, and butt joint protruding strips used to be in sliding fit with the butt joint sliding grooves are arranged on the left side face and right side face of the cushion frame, respectively.

[0018] The present invention differs from Chinese utility model No. CN 210962734 U, in that said model describes a fully reclining wheelchair that is mounted on a frame when it is needed to function as a bed; whereas the present invention relates to a bed with movable components that are placed in different positions, such as sitting, it being emphasized that said bed is not intended to be a wheelchair.

[0019] US Patent Application No. 20040154097 A1, pertaining to a cantilevered mobile bed / chair that, while in bed mode, can extend beyond a standard 36-inch-wide hospital bed to half its width, enabling the safe transfer of a patient, even by a single caregiver. After the transfer, the patient can be transported while remaining in bed mode or converted into chair mode for continued care. The features of this invention are achieved by a unique lifting structure that provides cantilever support for three hinged platforms forming the backrest, seat, and foot portions of the chair / bed. The lifting structure comprises a telescopic tower mounted vertically on one side of a rectangular wheeled base.The platforms comprise the patient support for the bed / chair and are operatively coupled to an E-shaped frame structure, which in turn is cantilevered horizontally from the telescopic tower controlled by an associated screw-type jack. While a screw jack is provided, other jacks, such as hydraulic or scissor jacks, can obviously be used.

[0020] The present invention differs from U.S. Patent Application No. 200401 54097 A1 in that the latter describes a bed that converts into a chair with a cantilever extender that widens the bed to facilitate patient transfer. The present invention, however, is not designed to facilitate patient transfer, but rather as furniture to make the recovery of a bedridden patient more comfortable. It is also intended for recovering patients and will facilitate an effortless upright position via a touchscreen. U.S. Patent No. 5513406 describes a modular hospital bed and a patient management method that allows a patient to remain in a single hospital bed from admission to discharge, thereby reducing the number of transfers between bed surfaces and the number of hospital beds.The method comprises providing a plurality of roll-up modular beds, assigning a patient to one of the modular beds upon admission to a hospital emergency department, providing a plurality of re-equippable modules for selective removable attachment to the modular beds, with at least one module provided with each of a group of patient transport modules, a group of critical care modules, and a group of ambulatory / rehabilitation modules, and transforming the single modular bed as the patient is treated and transferred from the emergency department and transferred, treated and transferred from the operating room, the critical care unit, and the medical / surgical unit, and finally discharged, by securing and removing from the bed one selected of the re-equippable modules, thereby adapting the bed to the patient's needs at any time from admission to discharge from the hospital.

[0021] The present invention differs from US Patent Application No. 5513406 in that the latter describes a modular bed and a method of patient handling, where the modular bed was designed to be able to add gadgets and thus meet the needs of a patient from admission to discharge; whereas the present invention was not designed for the purpose of meeting all the needs of any patient within a hospital, but rather to facilitate the recovery and stay of long-term patients.

[0022] US Patent 6336235 B1 describes a bed, and in particular a bed-chair that can be manipulated to achieve a conventional bed position having a horizontal sleeping surface on which a person lies in a supine position and a sitting position with the person's feet on or adjacent to the floor and the person's head and back supported on a seat formed by the bed. More particularly, the present invention relates to a hospital bed or patient care bed that can be converted into a chair and is configured to facilitate various activities that a caregiver can perform on a person's sleeping surface. It further specifies a patient support apparatus that includes a support and a platform. The support includes a base and a strut attached to the base. The platform includes a seat portion and a head portion rotatably coupled to the seat portion.The headrest is pivotally attached to the strut. The patient support apparatus further includes at least one pair of bars pivotally attached to the support and pivotally attached to the seat portion. The at least one pair of bars and the strut are configured to automatically coordinate the pivoting movement of the headrest relative to the seat portion as the seat portion moves downward toward the base.

[0023] The present invention differs from US patent 6336235 B1, in that said patent describes a bed that has the possibility of being converted into a chair, whereas the present invention is not intended to be a chair, but to put the patient in a seated position, for activities that are carried out in the same bed, without the need to change the furniture, additionally the bed described, will provide the possibility of taking the patient to a vertical position without physical effort.

[0024] In addition to the patent documents described above, it is known that Paramount Bed markets a hospital bed called the "VitalGo Total Lift Bed." This hospital bed uses a specific mechanism to raise the bed to a vertical position, allowing the patient to stand. This position prevents pressure ulcers from forming after prolonged periods of lying down and also improves circulation in the lower extremities.

[0025] The present invention differs from the hospital bed called “VitalGo Total Lift Bed”, in that said hospital bed was designed to fully verticalize a patient; whereas the present invention also manages to verticalize the patient and additionally manages to adopt the form of a “reclining chair”, as well as having an automatic exercise sequence that is activated from a touch screen.

[0026] The patent and internet documents cited above specify various types of hospital beds; however, none of them solve the technical problem of the hospital bed having the following positions: fully vertical, so that the patient can stand up, and in the form of a "reclining chair," so that the patient can sit up.

[0027] BRIEF DESCRIPTION OF THE INVENTION

[0028] The main objective of the present invention is to provide a bed, which is specially designed for long-term patients, which provides facilities to the patient while at home to help him to get up and stand, or to sit down to eat.

[0029] Another objective is that the bed provides the possibility of reducing pressure points to prevent the formation of sores on the patient's back, which is achieved by making different position changes, thus preventing the patient from being in a sedentary position for a long time.

[0030] Another additional objective is that this type of bed can help in the recovery of patients by providing continuous leg movement exercises, preventing loss of mobility.

[0031] A secondary objective is to define how the bed adopts various positions, which is controlled via a touchscreen that the patient can operate independently or with the assistance of a family member. The touchscreen will have a specific program allowing the bed to assume the following positions: lying down with legs extended, standing with legs extended, lying down with legs raised, lying down with legs extended, continuous back movement (rocking motion), and continuous leg movement while lying down.

[0032] Additionally, this bed allows a patient in a wheelchair to be received and taken along with the wheelchair, so that they can be laid on the bed in a fully motorized manner and without physical effort on the part of the patient or their assistant, thus eliminating the need for the cranes currently used for this purpose.

[0033] BRIEF DESCRIPTION OF THE DRAWINGS

[0034] To complement the description being made and in order to help a better understanding of the characteristics of the invention, a set of figures is included as an integral part of said description, in which, for illustrative and non-limiting purposes and following the same reference signs to indicate the parts and figures shown, the following has been represented: Figure 1. Top view of Tubular Frame.

[0035] Figure 2. Longitudinal section of the frame (bed base).

[0036] Figure 3. Top view of Mattress Base.

[0037] Figure 4. Longitudinal section of Bed Base and Mattress.

[0038] Figure 5. Side view of the tubular frame.

[0039] Figure 6. Top view of bed base and mattress base.

[0040] Figure 7. Longitudinal exploded view of the bed and base.

[0041] Figure 8. Longitudinal section of the bed and base in a horizontal position. The retracted motors are indicated. The turning points and radii necessary to achieve this position are also indicated.

[0042] Figure 9. Longitudinal section of bed and base in the legs flexed upwards position. The main motors contracted, secondary motors extended, as well as the points and radii of rotation necessary to achieve this position are indicated.

[0043] Figure 10. Longitudinal section of the bed and base in the vertical position. The fully extended main motors and the fully retracted secondary motor are indicated. The radius and pivot point required to achieve this position are also indicated.

[0044] Figure 11. Longitudinal section of bed and base in sitting position. The partially extended main motors and the fully extended secondary motors are indicated. The pivot points and radii required to achieve this position are also indicated.

[0045] Figure 12. Longitudinal section of bed and base with wheelchair integration.

[0046] Figure 13 Rear view of bed and base in 45-degree position with the integration of motor 1 partially extended and motor 2 retracted.

[0047] Figure 14 Rear view of bed and base in 45-degree position with the integration of motor 1 partially extended and motor 2 extended.

[0048] Figure 15. Main window of the touch screen, showing the two main operations: bed mobilization and light.

[0049] Figure 16. Secondary window, in which the following functions are observed: a) lying down, b) legs up, c) sitting, d) standing, e) leg exercise and rocking chair.

[0050] Figure 17. Secondary window, in which the lying function is observed.

[0051] Figure 18. Secondary window, in which the legs-up function is observed.

[0052] Figure 19. Secondary window, in which the sitting function is observed.

[0053] Figure 20. Secondary window, in which the stop function is observed.

[0054] Figure 21. Secondary window showing the leg movement function. Figure 22. Secondary window showing the rocking function.

[0055] Figure 23. Secondary window, in which the function of the courtesy light can be observed.

[0056] DETAILED DESCRIPTION OF THE INVENTION

[0057] According to what is described in the background section of the invention, the problem to be solved is that the patient or sick person can fully rise from a fully lying position with their feet stretched out to a fully upright position in a completely vertical position without the slightest effort, in addition to also being able to transform the bed into a “repose t” type.

[0058] The operation of the bed depends on a series of components, each of which is essential for the proper functioning of the system. Each of these components, along with its function, will be described below for a better understanding of the present invention.

[0059] Referring now to figures 7, 8, 9, 10, and 11, these show the bed frame (6) to be protected. This is the piece that supports the mattress base (5), which rotates on its transverse axis. The bed frame (6) is mounted on the bearing supports (18), and these, in turn, are mounted on the bed frame (6), positioning it precisely at the pivot point (11) with the bearing supports (18).

[0060] The bed frame (6) and mattress base (5) are joined using steel screws and nuts (not shown). The bed frame (6) is made of 5.08 cm x 2.54 cm (2” x 1”) rectangular tubing and the following are mounted on it:

[0061] 1. Four fittings (not shown) used to fix the base of the mattress (5) using screws and nuts.

[0062] 2. From two to five fittings (13), as required, to mount up to four main motors (9).

[0063] 3. Two fittings (16) that will receive the two steel plates, which act as “swivel arms” which support the base of the mattress (5) to place the bed in the “knees bent” position.

[0064] 4. Two fittings (14), for mounting up to two secondary motors (10).

[0065] Figures 3, 6, and 9 show the mattress base (5). Figure 3 shows a top view, and Figure 9 shows a longitudinal section. This piece provides a flat surface that can be articulated to position the patient with their knees flexed. It is mounted on the bed base (6) and secured to the four fittings (not shown) that attach the mattress base (5) using nuts and bolts. It is made of rectangular profiles measuring 7.62 cm x 7.62 cm (3” x 3”) and 6.35 cm x 6.35 cm (2”). 1 / 2” x 2 3 ”). In addition, the mattress base (5) has four perforated steel sheet panels (17) mounted on it, reinforced around their perimeter with 2.54 cm x 2.54 cm (1”x1”) square steel profiles. These panels are joined together with hardware and bushings, allowing for several pivot points. The main pivot point is achieved with a bearing, and the secondary pivot points (22 and 22’) are achieved with bushings (not shown).

[0066] This piece also consists of:

[0067] 1. Two folding handrails (2).

[0068] 2. Two fittings (14) welded to 2.54 cm x 2.54 cm (1”x1”) square profiles for mounting the secondary motors (10) by means of bushings (not shown). 3. An auxiliary structure to support the footboard (4) of the bed (100) and the patient when in a vertical position.

[0069] Figures 1, 5, 8, and 9 show the top view and longitudinal section of the tubular frame (7) of the bed (100). This frame is the main support for the entire bed (100). It can only be moved manually with the aid of the four steel and rubber wheels (8) mounted on it, each of which has an individual brake. It is primarily constructed of 4.445 cm (1” ½”) galvanized steel tubing and is further reinforced transversely with 5.08 cm x 5.08 cm (2” x 2”) square steel profiles.

[0070] The tubular frame (7) has several additional profiles that serve to support the rest of the bed (100).

[0071] 1. A tubular profile support (not shown) of 1.27 cm (3”) at the main pivot point (11) on which a bearing holder (18) is mounted and on which the bed base (6) pivots.

[0072] 2. A 5.08 cm x 5.08 cm (2” x 2”) square steel profile (not shown) to which five fittings (13) are welded, supporting up to six motors (main and secondary). These motors can have different power ratings. The main motors (9) have a load capacity of 100 to 125 kg each, with an arm travel of 34 cm to reach fully vertical and horizontal positions. The secondary motors (10) have a thrust capacity of 60 to 80 kg with a stroke of 28 cm, designed to support the varying weights of patients using this device. The fittings (13) on the square steel profile are used to mount the main motors, which are shown in Figures (9 and 10). 3. Four tubular profiles (Figure 7) for mounting the wheels (8) using their integrated stems.

[0073] 4. Two square steel profiles (not shown) measuring 5.08 cm x 5.08 cm (2”x2”) that function as stops to stop the frame (6) when the patient is fully verticalized in the “standing” position.

[0074] In Figure 6 we can observe a top view of the bed mounted on its base.

[0075] Figure 7 shows an exploded longitudinal section indicating each component of the bed (100) in an exploded model: headboard (1), the folding and manipulable side rail (2) for user convenience, mattress sectioned into 3 parts for better articulation (3), footboard (4), mattress base (5), bed base (6), tubular frame (7), bed wheels (8), main motor travel line (9), secondary motors (10), main pivot point (11) with bearing, secondary pivot point (22 and 22') with bushings, touch screen (12), main motor fittings (13), secondary motor fittings (14), fixing fittings (not shown), pivot arm fittings (16) and sheet panels (17), bearing holder (18) and stop buttons (19).

[0076] The multi-position bed (100) for long-term care patients in question has an electromechanical touch-sensitive drive system comprising three motors primarily—up to six possible motors—depending on the patient's weight capacity; two main motors (9) that can be expanded to four and up to two secondary motors (10); four pivot points: two primary pivot points (11) and two secondary pivot points (22 and 22'), which are strategically located to facilitate the adoption of various positions. The operation of this mechanism is described in detail below:

[0077] There are two main components, the first of which are the main motors (9) which are designated as motor 1 and motor 2, in comparison with the secondary motor (10) which is designated as motor 3, the motors are numbered as follows:

[0078] 1. Motor 1 (left piston): Located on the left side of the bed, it controls the contraction and extension of the piston on the left side of the bed simultaneously with the help of motor 2.

[0079] 2. Motor 2 (right piston): Located on the right side of the bed, the contraction and extension of the piston of the right sector of the bed simultaneously with the help of motor 1.

[0080] 3. Motor 3 (central piston): Positioned in the central area below the bed base structure (6), it controls the articulation of the seat.

[0081] In addition to the above, the other component is the various pivot points (11, 22 and 22') located at the base of the bed (6), the pivot points are divided into two:

[0082] 1. Main pivot points (11) which are two: located on the sides (left and right) of the bed and adjacent to the bearing carrier (18), which allow the bed to tilt between horizontal and vertical positions.

[0083] 2. First additional pivot point (22): Integrated on both sides at the top of the seat, adjacent to the backrest, which facilitates the bed generating a sitting position

[0084] 3. Second additional pivot point (22'): Integrated on both sides at the bottom of the seat, adjacent to the upper end of the footboard, it further contributes to the bed generating a sitting position, achieving knee flexion.

[0085] Verticalization and Horizontalization of the bed

[0086] The main motors (1) work in a synchronized manner, pushing in parallel to achieve vertical and horizontal positioning of patients of different weights.

[0087] Articulation between the backrest and the seat:

[0088] Motor 3, connected to an S-shaped tube, controls the seat's articulation. When motor 3 retracts the piston, the S-shaped tube retracts as well. The additional pivot points rotate the seat to align it with the backrest, achieving a perfectly horizontal and reclined position. Conversely, when motor 3 extends the piston, it pushes the S-shaped tube, causing the additional pivot points (22 and 22') to rotate and tilt the seat to the desired seated position.

[0089] Specific movements:

[0090] Reclining / sitting position:

[0091] Starting from a horizontal position where the patient is fully reclined, the secondary motor (10) is activated to extend the legs to 90 degrees, placing them in a flexed knee position. Subsequently, the main motors (9) are simultaneously activated to verticalize the bed to the desired 45-degree angle, placing the patient in a seated position.

[0092] Thrash:

[0093] From the seated position, the main motors (9) retract to return the bed to the fully horizontal position. In addition, the secondary motor (10) is programmed to perform a retraction and extension cycle of the piston, generating the continuous rotation of the additional pivot points (22 and 22') and the looped leg movement.

[0094] From the lying position, the secondary motor (10) stretches and contracts cyclically, to perform a loop of leg contraction and stretching “without effort for the patient” from the repetitive movement of piston 3.

[0095] The patient bed's electromechanical drive system, comprised of three motors and strategically placed pivot points, allows for a wide range of movements and positions to provide comfort and facilitate patient care. The system's design ensures smooth, precise, and safe operation.

[0096] Rocking function

[0097] In Figure 9, which represents the longitudinal section of the bed already assembled in the "knees flexed" position, the function of the rocking bed is specified, where in this position the mattress base (5) and the bed base (6) are at 0 owith respect to the floor and two of the four sheet metal panels (17) flexed at 90° to each other. The points and radii of rotation required to achieve this position are indicated, as well as the retracted secondary motors (10). These motors are used to flex the base of the mattress (5) and consequently raise the patient's legs. They consist of an electric motor that drives a worm gear reducer, which in turn extends or retracts a linear actuator (depending on the voltage polarity supplied).

[0098] The number of secondary motors (10) on the bed will vary depending on the type of patient for whom it is designed, as up to two may be needed depending on the amount of weight they have to move. The motors are supported by fittings (14) welded to the mattress base (5), the bed base (6), and the tubular frame (7).

[0099] In addition, the main pivot point (11) allows the bed backrest to rotate upwards by activating the main motors (9) while the secondary motor (10) remains engaged. This movement gradually moves the patient to a sitting position and then back down. This process is repeated in continuous cycles, allowing the patient to change position continuously and gradually, effectively functioning as a rocking chair.

[0100] Wheelchair integration

[0101] Figure 10 shows a longitudinal section of the bed mounted in a vertical position, illustrating its integration with a wheelchair. In this position, the mattress base (5) and bed base (6) are positioned relative to the floor, and the sheet metal panels (17) are at a 90° angle. The figure indicates the radii and pivot points necessary to achieve the vertical position, as well as the fully extended main motors (9). These main motors (9) are used to verticalize the mattress base (5). The main motor (9) drives a gearbox, which in turn extends or retracts a linear actuator.

[0102] By interacting with the touch screen (12), the bed adjusts to a fully vertical position at 90 degrees.

[0103] A sliding tarp (not shown) is used to allow the patient to lie down comfortably for subsequent positioning.

[0104] Next, the side rails (2) are retracted and two cushions are removed from the mattress (3) from the lumbar area to the feet, thus providing full access to the wheelchair.

[0105] The side rails (2) are raised again, and via the touchscreen (12), a first stop movement is performed, lowering the bed to a 60-degree angle. This is followed by a second stop movement, lowering the bed to a 45-degree angle, allowing a pillow to be placed to provide the patient with greater comfort during the lowering process. The bed then reaches a completely horizontal position. The side rails are lowered again, and the patient's safety belt is removed first, followed by the belts attached to the wheelchair frame tubes.

[0106] With the sliding tarp and the patient lying down, a movement is made towards the head of the bed to position the patient so the wheelchair can be removed. The cushions are replaced at the foot of the bed, the side rails (2) are returned to their original position, and finally, the sliding tarp is removed. This describes a method and system for facilitating the effortless, safe, and efficient transition of a patient between a bed and a wheelchair, optimizing the transfer process and ensuring the patient's comfort and safety. It should be noted that the wheelchair that fits onto the bed, as shown in Figure 12 of the present invention, has the following characteristics:

[0107] The wheelchair is a commercial chair with standard measurements and the only difference from traditional chairs is that it has four wheels of the same size.

[0108] The wheelchair has four wheels of the same diameter, in order to fit parallel to the base of the mattress.

[0109] It also features a partially reclining backrest, thus preventing the handles from getting in the way when placing the patient on the bed.

[0110] It is worth mentioning that this chair is a conventional folding chair.

[0111] Figure 11 shows a longitudinal section of the bed mounted on its base, in the seated position. In this position, the mattress base (5) and the bed base (6) are at a 75° angle to the floor. The main motors (9) are indicated when partially extended, and the secondary motors (10) when retracted. The pivot points and radii required to achieve this position are also indicated.

[0112] Figure 8 shows a longitudinal section of the bed mounted in a completely horizontal position. In this position, the mattress base (5) and the bed base (6) are at 0 o with respect to the floor and sheet metal panels (17) to 0 oThe main motors (9) are indicated when retracted, and the secondary motors (10) when fully retracted. In addition, the bed (100) incorporates an improved safety and motion control system. The bed (100) is equipped with two or four stop buttons (19) strategically located on the left and right sides (when facing the patient), two at the footboard (4) and two at the headboard (1). These stop buttons (19) allow the user to instantly and efficiently halt all bed movement to prevent any malfunction by interacting with the main motors (9). The ergonomic design of the stop buttons (19) facilitates convenient and quick access for medical personnel and caregivers, ensuring an immediate response in critical situations.

[0113] The implementation of this safety feature contributes to accident prevention and improves patient care and comfort, making this bed an advanced and reliable option in healthcare settings.

[0114] The main motor (9) can be present from 2 to 4 units, which will depend on the weight of the person; and the secondary motor (10) can be present from 1 to 2 units.

[0115] Integration of the comfortable toilet.

[0116] This innovative patient bed offers additional functionality, providing a comprehensive solution for medical care and patient comfort. It allows the patient to be positioned with their legs up. Specifically, the bed features a unique ability to pull out a specially designed upper leg cushion for use when the patient is in a horizontal position. eIn this position, the cushion (3) is removed and replaced with a conventional commode. Once the commode is in place, the patient is moved to a seated position, allowing healthcare personnel to provide medical assistance more efficiently. The commode is removed by returning the patient to a seated position to facilitate cleaning and removal. The cushion removal mechanism has been designed with ergonomics and accessibility in mind, ensuring a simple and trouble-free process.

[0117] Figure 15 shows the main window of the touchscreen (12). The touchscreen (12) and a computer program manage communication for the entire bed system. The touchscreen (12) is 17.78 cm (7”) and provides bidirectional communication through the icons displayed in the main window: bed icon (19), light icon (20), and language icons: Spanish (28) and English (29). These icons provide data input and output to the entire system, as well as operating instructions to the motors and patient service lights, via communication interfaces. There is only one Courtesy Light (g).

[0118] This touchscreen (12) is connected to a Raspberry Pi-type or equivalent special-purpose processor that hosts an application based on the Python programming language or equivalent, specifically designed for this purpose, which sends and receives information from various components, which communicate to perform the functions described in the second window after selecting the icon called bed, in which the following functions are observed: a) Lying down b) Legs up c) Sitting d) Standing e) Leg exercise f) Rocking

[0119] When choosing one of the predefined positions shown in Figure 16, the corresponding windows will be displayed, which are shown in Figures 17 to 22. In these figures, you can see 4 buttons - a start icon (24), a stop icon (25), a main menu icon (26), shown in the figures with the icon of a house, as well as two arrows (27) which you can click to go directly to the next function or, if necessary, go back.

Claims

CLAIMS Having sufficiently described the invention, the following claims are claimed as property:

1. A multi-position bed comprising a frame that supports a mattress base which can rotate about its transverse axis, wherein: the bed base is mounted on a bearing support, which in turn is mounted on a tubular frame, placing the bed base precisely at the pivot point with the bearing; said bed base has rectangular profiles on which four fittings are mounted that fix the mattress base by means of screws and nuts; two steel fittings that act as swivel arms, which support the mattress base to place the bed in a flexed knees position; and two fittings for mounting up to two secondary motors; the mattress base is a flat surface capable of being articulated to place a patient in a flexed knees position, it is mounted on the bed base and fixed to the four fittings and screws, and wherein, in addition, the mattress base has rectangular profiles;Furthermore, the mattress base has four steel sheet panels reinforced around their perimeter with square steel profiles, which are joined by bushings that provide two secondary pivot points, allowing for positions with flexed legs or a seated position; a bed base made up of rectangular steel profiles, on which a bearing holder is mounted and which rotates on the tubular frame, a square steel profile on which fittings are welded to support up to four main motors, four tubular profiles to mount wheels by means of stems, and two square steel profiles that; They function as stops to hold the bed base when the patient is raised to a standing position.

2. The multi-position bed according to claim 1, characterized in that the entire set of elements consisting of the bed base, the tubular frame, the steel sheet panels and the mattress base have a main pivot point that uses bearings, to upright the patient and take him to the standing or lying position.

3. The multi-position bed according to claim 1, characterized in that the tubular frame, which is the main support of the entire bed, has galvanized steel tubular profiles and on which rests the bed base which serves to support the rest of the mattress base: a rectangular profile support, in which is located the “pivot point” and on which a bearing holder is mounted, on which the frame “rotates”; a square steel profile, on which 4 fittings are welded to support up to four main motors; four tubular profiles to mount the wheels by means of the stems that it has integrated; and two square steel profiles that function as stops to stop the frame when the patient is fully verticalized in the “Standing” position.

4. The multi-position bed according to claim 1, characterized in that the touch screen provides bidirectional communication by means of the icons shown in the main window, which are bed, light, languages: Spanish and English, which will give “input” and “output” of data to the complete system, as well as the operating instructions to the motors and the lights for patient service, through bidirectional communication interfaces.

5. A multi-position bed for long-term care patients, comprising: An electromechanical touch system that drives two main motors and one secondary motor, Four pivot points, including two primary pivot points and two secondary pivot points, located on both sides of the seat to facilitate the adoption of various positions.

6. The multi-position bed according to claim 5, wherein the main motors control the verticalization or horizontalization of the patient in a motorized manner and without the need for any additional assistance.

7. The multi-position bed according to claim 5, wherein the secondary pivot points facilitate reclining and flexing of the seat in conjunction with the secondary motor.

8. The multi-position bed according to claim 5, wherein the primary pivot points allow the bed to be tilted between horizontal and vertical positions.

9. The multi-position bed according to claim 5, wherein the secondary pivot points generate the seating position in conjunction with the secondary motor.

10. The multi-position bed according to claim 5, further comprising actuating the secondary motor to generate a leg movement in a loop by rotating the secondary pivot points.

11. The multi-position bed according to claim 5 further comprising actuating the main motors to generate a cyclical verticalization and horizontalization movement by rotating the main pivot point to achieve the rocking function.

12. The multi-position bed according to claim 5, comprising a wheelchair attachment that can be positioned parallel to the mattress base.

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