IMPROVED VARIABLE GEOMETRY BED

Description

DESCRIPTION Title of the Invention: Improved variable geometry bed. Scope of the Invention

[0001] The present invention is disclosed within some hospital devices, 5 also employed in the home setting, for patients suffering from obesity and / or obesity severe – defined as bariatric patients – in whom appropriate functions are arranged handling technologies capable of simplifying the handling of overweight patients. Background of the Invention 10

[0002] In recent decades the problems related to overweight are becoming more and more serious. rapidly spreading evidently throughout the world. On the one hand the Overweight can have different etiologies, such as endocrine and metabolic, or genetic causes; on the other hand, customs and common habits food supplements do not help in managing this disease; furthermore they can act 15 some particular psychological factors are also important contributory causes. This is deducible by analyzing a series of socio-cultural motivations: a. the diet throughout the world is becoming increasingly standardized towards a model defined as Western: it is a tendency towards production of foods in which the amount of calories and the ingredients in them 20 used – with a large predominance of refined flours, high quantities of Sugars and fats – promote weight gain. This is also evident from the policies of multinationals that deal with marketing the food products, which are often formulated to generate real own dependencies, 25 b. meals are eaten in a hurry, due to very tight work schedules, for which it is necessary to have ready-made foods or pre-cooked foods, generally characterized by low nutrient quality, c. the change in lifestyle at work promoted by the use of technology, if on the one hand it has allowed to reduce the amount of strenuous work, 30 on the other hand has increased sedentary lifestyle, so many activities professional activities based on the use of computer devices force the workers working for long periods in complete physical immobility, d. sporting activity is not yet sufficiently valued as necessary and essential requirement, especially in young people, for 5 improve your health,

[0003] Even if for some years now, in contrast to the trend, in some countries of the world it is being trying to promote a healthier lifestyle, it is evident that decades of bad habits in nutrition and lifestyle have already led to the population a rapid spread of obesity, which obviously aggravates the 10 predisposition to chronic diseases which often occur even at an older age early.

[0004] For example, in the United States of America the percentage of obesity in population has reached almost thirty percent, a worrying figure that puts the very healthcare facilities set up for this purpose are in crisis. 15

[0005] The obese patient can then become chronic and worsen until it becomes a bariatric patient, that is, a patient in whom excessive obesity leads to a series of problems and pathologies that are difficult to solve.

[0006] The bariatric patient is subject to falls to the ground which can be damaging and evident limitations even in those normal everyday gestures that we take for granted 20 discounted, such as preparing food, going to the bathroom, dealing with a flight of stairs, going out to do the shopping etc.

[0007] Bariatric patient care services must therefore operate with a evident difficulty and prepare oneself with adequate equipment in order to be efficient and not cause harm to the patient. 25

[0008] Hospitalization of patients affected by obesity (BMI>30) according to the literature medical and / or severe obesity (BMI > 40) with a high body weight - which in in recent years it has been found that it can reach up to 450 kg - leading to further problems as hospital technical infrastructures are generally calibrated on the average patient standard. 30

[0009] The standard hospital bed for the average patient in fact generally has a maximum safe working load of around 220 kg and it also turns out to be too narrow in width to accommodate a bariatric patient, who requires therefore of a much higher maximum safe workload and of a width of the surface designed to accommodate it adequate to its dimensions.

[0010] In the State of the Art there are many models of geometry beds available today 5 variable, also for bariatric applications, which allow both the patient hospital and to the staff who take care of it to have at their disposal movement functions that allow for an adequate level of assistance.

[0011] HillRom's product, for example, visible in: to. https: / / www.hillrom.co.uk / en / products / compella-bariatric-bed / 10 reveals for example a bariatric bed equipped with many mechanical functions and of the electronic type. In fact, the bed is capable of narrowing longitudinally and in a transverse direction to allow easy movement and / or easy adaptation to the patient's size. Furthermore, the bed allows for different stored, recallable mechanical position configurations 15 electronically by operator, in addition to the possibility of lowering the floor of the mattress at a height from the ground of only 43 cm, to facilitate the setting up of the patient.

[0012] In the application US2006085914A a bariatric bed is visible in which the section the central part and the headboard of the bed are of the rotating type with respect to the frame below, 20 thus allowing the patient to position his feet towards the floor, thus facilitating the transition to an upright position.

[0013] In the application US2003079289A1 an additional bariatric bed is visible made up of different interconnected rotating sections, capable of high degrees of mobility and designed to be able to assume positions that can facilitate 25 abdominal and genital surgery operations, such as the position Trendelenburg or reverse Trendelenburg position.

[0014] In the application US2007089238A1 a bariatric bed is visible in which a section that constitutes the upper plane, that of the patient's head and torso, can move with a peculiar degree of freedom, as it is not hinged to the 30 next section, that is, the one for positioning the legs.

[0015] In the patent US975729B2 a variable geometry bed is visible, equipped with a lifting mechanism by mechanical arms with a large lifting capacity lifting and an ability to position the bed at a distance from the ground of about 22 cm. The device revealed in US975729B2 however is moved by two Only 5 electric motors and the layout of the lifting mechanism is characterized by a non-symmetrical structure between lower section and upper section, for which there may be doubts about the correct stability during handling on wheels, on the non-deformability of the structure over a long period of use and on the positioning of the center of gravity. 10

[0016] Also in US975729B2 part of the lifting mechanism movement occurs through the linear movement - within one or more semi-curved tracks - of the heads of mechanical segments suitably equipped with bearings, which rotate move along the semi-curved direction of the tracks. These motion factors do not contribute to defining a high rigidity and stability of the bed, as it is 15 It is preferable that a lifting mechanism works - under the presence of loads high – as free as possible from degrees of freedom of its mechanical components, for example excluding only rotational movements around an axis.

[0017] It is obvious that the functions and movements of the sections constituting the beds of the State of Art built for obese patients have been the subject of great study, both for 20 facilitate the hospitalization of patients with severe obesity, both to allow to be subjected to the necessary medical care – including surgical operations – both to allow the disease to be managed in a more effective way dignified and psychologically sustainable.

[0018] The purpose of the present invention is to design a bariatric bed also for 25 a special category of severely obese people, that is, those whose weight is excessive and whose reduced height places extreme limitations on movement, especially during getting out of bed due to the short length of the lower limbs and for which the height minimum height from the ground of the state-of-the-art bariatric beds (approximately 40 cm to which is added the mattress) is excessive. 30

[0019] A further aim of the present invention is also to devise a lifting and lowering movement of the bed base tested for extremely high loads heavy loads, even exceeding 600kg.

[0020] A further aim of the present invention is to devise a mechanism for riser that is fundamentally symmetrical between the respective upper section, that is, those of the bed surface where the patient is lying, and those of the trolley surface, that is, the one closest to the ground and – preferably – a symmetry between the two as well 5 longitudinal ends of the invention, in order to create a highly efficient mechanism resilient even after long periods of use and featuring a high resistance factor precision and mechanical stability, even during transients impressed by the movement of the actuators.

[0021] A further aim of the present invention is to devise a mechanism for 10 raised as much as possible without degrees of freedom of movement of its mechanical parts, except those represented by rotational movements around an axis. Summary of the Invention

[0022] The Invention reveals an innovative type of variable geometry bed, also for bariatric applications, in which the bed base can be positioned at a height 15 extremely small compared to the ground floor and equipped with a mechanism symmetrical type lift with high stability. The invention allows the management of loads extremely heavy loads – even exceeding 600 kg – thanks to an innovative advanced electromechanical structure. Advantages of the Invention 20

[0023] The advantages of this Invention are disclosed below: a. the invention consists of a mechanical lifting structure of the type symmetrical equipped with four actuators that act synergistically, such to ensure a high precision factor and operating stability even when used heavily and intensively for long periods 25 of time, b. the invention allows the network floor to be lowered to the ground floor level up to a height of about twenty centimeters, c. the invention allows, thanks to its innovative mechanical geometry, to safely manage loads on the network surface even exceeding 600 kg, d. the invention allows the bed surface to be tilted in a completely safe direction longitudinal, both from the head side and from the foot side, even in the presence of heavy loads in the order of 600 kg, e. the mechanical symmetry of the invention and the presence of only rotating joints 5 in the respective components of the lifting mechanism, allow you to minimize the torque factor imparted by the movement of the actuators, a factor which in addition to generating an initial imprecision and instability in the movements of the network plane, it can in turn amplify wear phenomena of mechanical components. 10 Description of the Drawings

[0024] The Drawings table is integrated into the documentation of this application for the purpose of exemplifying the characteristics of the invention, also highlighting variations in the application described therein; specifically it reveals: Fig.1 15

[0025] [fig.1] in which an overall view of the structure is revealed electromechanics of the Invention according to the embodiment of the Invention, Fig.2

[0026] [fig.2] in which a longitudinal view of the invention is revealed with the mechanical joints extendable according to the embodiment 20 of the Invention, Fig.2a

[0027] [fig.2a] where a detail of the extendable mechanical joint is visible according to the embodiment of the Invention, Fig.3 25

[0028] [fig.3] in which an axonometric detail of the mechanical joint is visible extendable according to the embodiment of the Invention, Fig.4

[0029] [fig.4] in which a further axonometric detail of the joint is visible extendable mechanics according to the embodiment of the Invention, Fig.5

[0030] [fig.5] in which a positioning of the net plane not parallel to the ground is visible of the Invention according to the embodiment of the Invention, Fig.6 5

[0031] [fig.6] in which a detail of the ground light of the Foundry is visible according to the shape of realization of the Invention, Fig.7

[0032] [fig.7] where a detail of the axial type electric actuators is visible and extendable according to the embodiment of the Invention, 10 Fig.8

[0033] [fig.8] in which a complete longitudinal view of the mechanical parts is visible main movements of the Invention according to the embodiment of the Invention, Fig.9

[0034] [fig.9] in which the positioning of the light in the space portion is visible 15 land of the mechanical moving devices of the Invention according to the form of realization of the Invention. Fig.10

[0035] [fig.10] in which the symmetry of the invention of the present invention is visible both along the longitudinal axis and along the vertical axis. 20 Description of the Invention

[0036] The description of the various embodiments of the present invention is disclosed here for illustrative purposes, so all possible changes of an obvious nature in its field of application, when implemented by technicians in the sector, not limit the terms of protection of the license itself. 25

[0037] The device disclosed in the present invention is related to further solutions already known in the State of the Art, which are recalled for the correct implementation in the chosen technical field.

[0038] In this text of the Invention the reference to a single technical element may also indicate a plurality of the same within the Found, except specific indication.

[0039] In this text of the Invention, “network plan” means the section of the 5 Found that hosts the patient, or the area of ​​the bed that can be used by the patient, that occupied by the mattress.

[0040] In the present text of the Invention, “trolley plane” means the section of the Found moving on the ground thanks to the action of four pivoting wheels, connected to the network floor by means of a series of mechanical solutions of the type 10 extendable.

[0041] In the present text of the Invention, “foot side” means the section of the Found that supports the lower part of the patient's body, that is, that of the feet, legs and part of the pelvis.

[0042] In this text of the Invention, “head side” means the section of the 15 Found that supports the upper part of the patient's body, that is, that of the head, torso and part of the pelvis.

[0043] In the present text of the invention, “ground light” means the space delimited between the trolley plane and the ground plane, obtained by the presence of the wheels fixed on the trolley platform. 20

[0044] In this text of the invention, “lifting mechanism” means the set of mechanical joints and actuators that allow the movement of the net plane with respect to the trolley plane.

[0045] According to the embodiment of the Invention the Invention consists of a overall structure visible in the axonometry of Fig.1, namely: 25 a. a net plane (11) and a trolley plane (10) made from two metal frames rectangular in shape positioned horizontally to the ground, in which the longitudinal dimension is greater than the transverse dimension. The net plane is It is placed vertically above the trolley platform and houses the mattress on which the patient is lying, b. the net plane and the trolley plane respectively have a segment transverse stiffening (101,102) which joins the respective profiles longitudinal in the median area, c. a series of four extensible mechanical joints (16,17,18,19) that 5 represent a first section of the lifting mechanism, d. a series of four axial and extendable electric actuators (12,13,14,15) which represent the further section of the mechanism of raised, e. a control, monitoring and user interface logic of the degrees of 10 movement of the Found (100).

[0046] According to the embodiment of the Invention the structure of the trolley plane, of the bed base and the extendable mechanical joints is made of metal, for example steel, or other metals and / or their alloys consistent with the aforementioned application, also by virtue of their sizing - thickness and size 15 – which makes the finding compliant with the required technical requirements.

[0047] In Fig.2 a longitudinal view of the invention is revealed, with only the the extensible mechanical joints connected to the two planes. According to the shape of embodiment of the Invention the net plane (21) and the trolley plane (20) are mutually constrained by means of extensible mechanical joints (22, 23) 20 (being the lateral view in Fig.2 it is possible to observe only two of them) mentioned above joints connected on the longitudinal profiles of the planes, two for each side, such as place the net plane in a vertical axis above the trolley plane.

[0048] According to the embodiment of the Invention the network plane (21) and the plane trolley (20) are made from two rectangular metal frames positioned 25 horizontally with respect to the ground, where the longitudinal dimension is greater than the transverse dimension, the aforementioned planes placed vertically one above the other,

[0049] According to the embodiment of the Invention the mechanical joint extensible is designed and made using two metal segments (20a,21a) joined together in one of their respective vertices by a rotating junction (22a), the other vertices connected 30 respectively on the net surface and on the trolley surface by means of the same number of rotating joints (23a,24a) in which

[0050] the connection of the extensible mechanical joints to the trolley plane occurs via appropriate fixing brackets (26a) applied to the two beams transverse beams that form part of the carriage frame (25a), the aforementioned beams positioned below the longitudinal beams (27a) of the same trolley plane, 5 or in the portion of space of the ground light.

[0051] According to the embodiment of the Invention the connection of the mechanical joints extendable to the bed surface instead occur on the profiles longitudinal of the respective frame.

[0052] According to the embodiment of the Invention such mechanical architecture 10 allows for an extension and compression movement that varies the overall length of the joint so as to allow the bed surface Of: a. lift off the trolley platform, b. lower onto the trolley plane, 15 c. tilt longitudinally from the landing gear plane, both in the head section and from the foot side.

[0053] According to the embodiment of the Invention, and as visible in Fig.3, the segments of the extensible mechanical joints connected to the bed base positioned on a longitudinal profile (30, 31), they are integral with the respective segments 20 connected to the same network plane on the opposite longitudinal profile (32,33), by means of two upper interconnecting segments (34,35) respectively arranged with an “L” shaped push and pull bracket (36,37), said brackets installed in immovable manner on each respective interconnection segment in non-position median. 25

[0054] According to the embodiment of the Invention the joint segments extendable mechanics connected to the trolley plane positioned on a profile longitudinal (40,41), are integral with the respective segments connected to the same trolley plane on the opposite longitudinal profile (42,43), by means of four segments of lower interconnections (44,45,46,47), two of which (44,47) are prepared 30 respectively with a push and pull bracket (48,49) in the shape of an “L”, the aforementioned brackets installed immovably on each respective segment of interconnection in a non-median position.

[0055] According to the embodiment of the Invention then each group of the two extensible mechanical joints connected by their respective segments 5 rigid interconnection, lower and upper, are constrained in extension and compression in a mirror-like and identical movement - thanks to the respective rigid interconnection segments - thus allowing the network plan to not to lean in a transverse direction, an inclination which would lead the patient to be tipped from the bed to the right or left of it. 10

[0056] According to the embodiment of such mechanical architecture of movement of the bed base on the trolley base, the mechanical joints extensible allow the invention the following degrees of freedom: a. allows a parallel raising and lowering movement of the bed base with respect to the trolley plane, and therefore to the ground plane, when both 15 groups of the two extensible mechanical joints come to move in unison, b. allows the bed surface to be raised and lowered in not parallel to the trolley plane (50), and therefore to the ground plane, or allows you to lower or raise the bed base longitudinally, side 20 head and foot side, when both groups of the two joints extensible mechanics come to move not in unison, that is, different speeds, thus assuming dissimilar positions. c. allows for a high overall mechanical stability factor, as the entire lifting mechanism is perfectly symmetrical between the bed base 25 (100) and trolley plane (101) and between head side (102) and foot side (103), thus allowing for high operating precision and a optimal distribution and balancing of the thrust forces on the respective mechanical parts constituting the invention.

[0057] According to the embodiment of the Invention in Fig.6 it is more 30 visible one of the technical peculiarities of the present invention which allows the Found it possible to position the bed base at an extremely low height with respect to the ground. This is made possible because the transverse beams that make up the trolley plane (60,61) which house the rotating joints of the vertices of the segments lower parts of the extendable mechanical elements, are positioned below below the same trolley plane (63), or in that space generated from the height of the wheel pins and the wheels fixed to the same plane, called “light 5 on the ground” (62).

[0058] In order for the trolley plane to be able to move on the ground plane, and with it all the found, it is essential to create a minimum ground light given by the four corner wheels (64). The ground light can conveniently be used to make yes that part of the mechanisms of the raising and lowering movement of the bed base 10 can be accommodated in the aforementioned light, particularly when the bed surface comes to be at the lowest elevation from the ground floor.

[0059] According to the embodiment of the Invention the use of the portion of space delimited by the ground light of the Found by the lifting mechanism and lowering of the bed base, allows the latter to descend to a minimum height 15 from the ground, thus introducing an obvious technical advantage over beds State-of-the-art bariatric appliances. The invention resulting from this idea in fact it allows the bed base to be positioned at a height from the ground around the twenty cm.

[0060] According to the embodiment of the Invention, and as will be disclosed in the 20 paragraphs below, also the axial type electric actuator elements and extendable which promote the movement of the Found and part of the elements extendable mechanics come to occupy part of the space delimited by the light on the ground of the Foundry, thus contributing to the reduction of the minimum height from ground floor of the network plan. 25

[0061] According to the embodiment of the Invention all the movement of the Found is promoted by the use of four electric actuator elements of type axial and extensible, as visible in (12,13,14,15).

[0062] According to the embodiment of the Invention, and as visible in Fig.7, such actuators convert electrical energy by means of an electric motor (70) into a 30 reversible axial movement of a piston (71) which allows to vary its overall length.

[0063] According to the embodiment of the Invention, four are employed actuators, two connected to the extensible mechanical joints of the Found side head, and two connected to the extensible mechanical joints of the Found foot side, thus creating an overall structure that is also mechanically 5 symmetrical and balanced, capable of distributing evenly, and it too in a balanced way, the thrust forces generated for the movement of the plane net.

[0064] According to the embodiment of the Invention the connection of two axial and extendable electric actuators in the trolley plane occurs on the 10 respective transverse stiffening segment, positioned in the median zone (80), also integral with the same floor in a position below the beams longitudinal (804) of the same trolley plane or in a position that occupies the light on the ground of the Found.

[0065] According to the embodiment of the Invention the misalignment of the 15 transverse stiffening segment, which therefore extends below the plane trolley, allows you to create an anchoring area for the actuators which, similarly when connecting the extendable mechanical elements, it occupies the ground space of the Found thereby contributing to the reduction of the minimum ground clearance of the net floor when positioned at the minimum height from the ground level. This is in fact 20 permitted by the finding that the above mentioned overall mechanical parts of raising and lowering movements of the Found are to be housed and moved outside the space delimited between the trolley platform and the bed platform.

[0066] According to the embodiment of the Invention, the scheme is disclosed herein connection to the trolley plane and to the actuator network plane: 25 a. on the trolley plane the first two vertices of two actuators are connected axial and extensible type electrics (81,82), the aforementioned first vertices being integral to the transverse stiffening segment (80) and connected by joints rotating (85), b. the two push and pull brackets integral with the interconnecting segments 30 lower rigid parts of the extensible mechanical elements (801,802) are respectively connected to the remaining free vertices of the two electric actuators of axial and extensible type connected to the trolley plane, the aforementioned vertices of actuators connected by rotary joints (803), c. on the network plane the first two vertices of two further actuators are connected axial and extensible type electrics (83,84), the aforementioned first vertices being integral 5 to the respective transverse stiffening segment (86) and connected by means of rotating joints (87), d. the two push and pull brackets integral with the interconnecting segments rigid upper parts of the extensible mechanical elements (88,89) are respectively connected to the remaining free vertices of the two electric actuators 10 of axial and extensible type connected to the network plane, the aforementioned vertices of the actuators connected by rotating joints (800),

[0067] In Fig.9 it is visible in the Found fruit of the idea of ​​the Invention during the minimum height from the ground floor reachable from the grid floor. The mechanisms are evident consisting of the extensible mechanical joints (90,91) and the electric actuators of 15 axial and extensible type (92,93) which partially occupy the ground light of the Found, thus allowing a height of the net plane from the ground of only twenty approximately cm.

[0068] According to the embodiment of the Invention the lifting mechanism, so the set of extensible mechanical joints and actuators has a 20 perfectly symmetrical mechanical layout, so: a. the set of pushing forces is always distributed in a balanced way on the total mechanical structure, b. mechanical balancing allows for high precision and resilience of the found even when subjected to loads of more than 600Kg for periods of 25 long-term and heavy-duty uses.

[0069] According to the embodiment of the Invention, furthermore, the mechanism of the lift does not have any degrees of freedom of movement other than those given by rotation around an axis represented by the rotating joints, thus increasing the stability factor of the Invention even when moved in the extended position on the 30 respective wheels and in the presence of heavy loads.

[0070] According to the embodiment of the Invention: a. synchronized and same-speed operation of the four actuators electric allows the raising or lowering of the bed surface in parallel on the trolley level, b. synchronized operation at the same speed of only the two actuators 5 head side or foot side allows the inclination of the bed base with respect to the floor trolley along the longitudinal axis (50), that is, it allows the bed to assume a position that is not parallel to the carriage plane, c. the simultaneous operation - but at different speeds - of the two actuators head side compared to those on the foot side allows the raising or lowering 10 descent of the net plane from the trolley plane in combined mode with a progressive inclination of the net surface with respect to the trolley surface.

[0071] According to the embodiment of the Invention one or more rotary joints of the Found they are equipped with a set of two electromechanical devices, namely one slip-ring that allows the passage of electrical signals and / or power supply, and 15 an encoder and / or resolver device that allows you to know the rotation angle absolute and relative of the same joints. Slip-rings allow the passage of electrical signals in the rotating joints, avoiding the breaking of the wiring when subjected with continuous flexions; the encoders / resolvers allow the acquisition of the angle of absolute or relative rotation of a rotating joint. 20

[0072] According to the embodiment of the Invention the presence of such devices it is necessary because one of the fundamental technical features of the invention is precisely the movement capacity of the net plane on the trolley plane, both when parallel to the ground plane both when in non-parallel mode, i.e. with slopes foot end or head end specification. 25

[0073] According to the embodiment of the Invention for the purpose of monitoring any unwanted accelerations of the Invention due to incorrect movements, collisions, malfunctions etc. one or more accelerometers are also installed, the which can monitor all movements of the overall device present Invention. 30

[0074] According to the embodiment of the Invention the Invention is also equipped with additional sensors, such as: a. a load cell, b. a GPS sensor, c. one or more air temperature and humidity sensors, d. one or more ambient microphones, 5 e. one or more speakers / buzzers.

[0075] These sensors have the purpose of analyzing the environment in which the Invention is positioned, for the purpose of providing data to the control logic for the determination of appropriate alarms.

[0076] According to the embodiment of the Invention the Invention is also 10 equipped with one or more rechargeable batteries that allow operation of backup in which case the energy drawn from the electricity grid is not available.

[0077] According to the embodiment of the Invention all the apparatus powered by electrical energy of the Invention are then connected by means of an appropriate electrical wiring prepared on the mechanical frame of the Found. 15

[0078] According to the embodiment of the Invention the control logic, monitoring and user interface is equipped with one or more microprocessors equipped with both internal and external memory units, the overall circuit of which it is configured like this: a. presents a unit for converting the electrical power taken from the 20 mains or battery to power each electrical circuit of the Invention, for example example of switching type, the above unit comprising a charging circuit batteries connected to the rechargeable battery, b. presents a series of electrical interfaces for driving the motors of the axial and extendable electric actuators, 25 c. presents a reading interface for sensor devices, such as accelerometers, GPS, etc. d. presents an interface for one or more data entry devices, including touch, with which it is possible to move the network plane of the Found and / or plan their movements over time, monitor their status operation, detect any alarms, where at least one device data entry is used by the patient, e. features a bidirectional data communication interface of both types wired LAN as well as wireless WLAN and Bluetooth, for access to a 5 or more network infrastructures from which: i. it is possible to monitor the functioning of the Found remotely, ii. it is possible to control the functions of the Found remotely. f. presents a wireless communication interface to an infrastructure of 3G / 4G / 5G network for the same operations as point (e) 10 g. has one or more USB communication ports.

[0079] According to the embodiment of the Invention the microprocessor of the control logic executes one or more programs resident in external memory or internal specifically designed for the following purposes: a. provide to a Network Server and / or to a user, local or connected to the network, 15 an adequate interface to program the network plan movements of the Found, b. provide a Network Server and / or a user, local or connected to the network, with the monitoring and control of the functioning of the device, c. provide to a network server and / or to a user, local or connected to the network, 20 possible advanced programming, self-diagnosis and upgrade functions software / firmware, i.e. functions that cannot be used by the average operator.

[0080] According to the embodiment of the Invention, some are then devised basic software functions in auto background execution in the control logic in relation to the detection of parameters potentially dangerous for the patient, 25 of the type: a. a minimum and maximum threshold of weight variation detected by the cell load in relation to a time unit, which can generate a alarm signal on the data entry interface and / or on the network and / or sound communication. This type of alarm is sent based on the presumption that the patient is trying to move on the mesh plane in inappropriate manner, or that is agitated, b. the presence of suspicious environmental noises, which can generate a alarm signal on the data entry interface and / or on the network and / or 5 sound communication. This type of alarm is sent due to the microphone detection of screams or noises that may be associated to a fall from the floor and / or to a request for help and / or events associated with a generic danger, c. the absence of measurement of the load cell, which can generate a 10 alarm signal on the data entry interface and / or on the network and / or on the sound communication. This type of alarm is sent due to the presumed fall of the patient from the mattress surface and / or his / her moving away not appropriate from the bariatric bed, even in combination with the survey of point a), 15 d. the detection of an unauthorized movement of the Found from a site authorized which can generate an alarm signal on the data entry interface and / or on the network and / or on sound communication. This type of alert is sent on the assumption that a user is not authorized person is moving the Found from its main location, 20 movement detected by the GPS sensor. e. the detection of data indicating a series of anomalous accelerations, which can generate an alarm signal on the data interface entry and / or network and / or sound communication. This type of alarm generated by analyzing accelerometer data. 25 f. the detection of environmental temperature and humidity data, which can generate an alarm signal on the data entry interface and / or in Network and / or sound communication. This type of alarm is generated from the analysis of temperature and humidity sensor data.

[0081] According to the embodiment of the Invention the software functions in the car 30 background executions performed by the control logic are obviously configurable on the patient's physical and biometric parameters, as well as on the parameters environments in which the bed is installed - for example a hospital room or a room equipped for the purpose of a private dwelling - parameters that are entered via the data entry interface by an authorised operator or via the Network connection of the Found. Examples of the Invention 5

[0082] One of the many mechanical and electrical configurations of the Found that allow to manage a maximum weight on the network plane (SWL - Safe Working Load) of 600 kg and a minimum height of the bed base from the ground of 230 mm: a. length of the segments constituting the extensible mechanical joint = 330mm, 10 b. center distance of the installed rotating joints of the segments constituting the joint extendable mechanics = 290mm, c. power of the actuators = 10,000 Newtons each. Industrial Applications of the Invention

[0083] The industrial applications of the invention are those of the families of devices 15 of assistance for patients affected by obesity both in hospital and in the field private / domestic. Quotes in the Invention

[0084] Citation List follows: no citations. Patent Literature 20

[0085] PTL1: US2006085914A

[0086] PTL2: US2003079289A1

[0087] PTL3: US2007089238A1

[0088] PTL4: US975729B2 Non-Patent Literature 25

[0089] NPL1: https: / / www.hillrom.co.uk / en / products / compella-bariatric-bed /

Claims

CLAIMS 1 ) [Variable geometry bed for hospital or home applications, also for obese and / or bariatric patients, adjustable in height, consisting of a bed base designed to accommodate the patient (21) and a trolley base underneath the bed base (22), said bases constituting in a longitudinal direction a head side (101) and a foot side (102), in which the trolley base is equipped with four ground movement wheels (64) such as to determine a ground clearance (62) given by the distance of the trolley base from the ground level, said bed base and trolley base joined by a lifting mechanism which allows the bed base to be raised or lowered from the trolley base, in which: a. the bed base (11, 21) and the trolley base (10, 20) are made of two rectangular metal frames positioned horizontally with respect to the ground, in which the longitudinal dimension is greater than the transversal dimension, said bases placed vertically one above the other, b.the transverse beams (24,25) that make up the trolley plane are fixed underneath the longitudinal beams (26) of the same trolley plane, i.e. in the space delimited by the ground clearance of the Invention, c. the bed base and the trolley plane respectively have a transverse stiffening segment (101,102) that joins the respective longitudinal profiles in their median zone, d. the transverse stiffening segment of the trolley plane (101, 27) is positioned underneath the longitudinal beams (26) of the same trolley plane, i.e. in the space delimited by the ground clearance of the Invention, e. the bed base and the trolley plane are mutually connected at the vertices of the lifting mechanism consisting of i. four extendable mechanical joints, two for each side, such as to place the bed base on a vertical axis above the trolley plane, ii. four electric actuators, f.the bed base can be tilted along the longitudinal axis (50) with respect to the trolley base, g. the extendable mechanical joint and the electric actuators are characterised by elements that generate a mechanical symmetry both in vertical projection between the bed base (100) and the trolley base (101) and in longitudinal projection, between the foot end (102) and the head end (103), h. the extendable mechanical joint is made up of two metal segments (20a,21a) joined together at one of their respective vertices by a rotating joint (22a), the other vertices connected respectively to the bed base and to the trolley base by means of the same number of rotating joints (23a,24a) in which: i. the connection of the extendable mechanical joint to the trolley base occurs via a fixing bracket (26a) applied to the transverse beam (25a) forming part of the trolley base frame, ii.the connection of the extensible mechanical joints to the bed base takes place on the longitudinal profiles of the respective frame (23a), i. the segments of the extensible mechanical joints connected to the bed base positioned on a longitudinal profile (30,31), are integral with the respective segments connected to the same bed base on the opposite longitudinal profile (32,33), by means of two upper interconnecting segments (34,35) respectively arranged with an “L” shaped push and pull bracket (36,37), said brackets installed in a non-removable manner on each respective interconnecting segment in a non-median position, j.the segments of the extensible mechanical joints connected to the carriage plane positioned on a longitudinal profile (40,41), are integral with the respective segments connected to the same carriage plane on the opposite longitudinal profile (42,43) by means of four lower interconnecting segments (44,45,46,47) two of which (44,47) are equipped with an “L” shaped push and pull bracket (48,49), said brackets installed immovably on each respective interconnecting segment in a non-median position, k. the first two vertices of two axial and extensible type electric actuators (81,82) are connected to the carriage plane, said first vertices being integral with the transverse stiffening segment (80) and connected by means of rotating joints (85), l.the two push and pull brackets integral with the lower rigid interconnection segments of the extensible mechanical elements (801,802) are respectively connected to the remaining free vertices of the two axial and extensible type electric actuators connected to the trolley plane, said vertices of the actuators connected by means of rotating joints (803), m. on the bed plane the first two vertices of two further axial and extensible type electric actuators (83,84) are connected, said first vertices integral with the respective transverse stiffening segment (86,102) and connected by means of rotating joints (87), n. the two push and pull brackets integral with the upper rigid interconnection segments of the extensible mechanical elements (88,89) are respectively connected to the remaining free vertices of the two further axial and extensible type electric actuators connected to the bed plane, said vertices of the actuators connected by means of rotating joints (800),. 2) Bed of Claim 1 wherein the position of minimum height from the ground of the bed base is obtained by the partial positioning of the axial and extendable electric actuators (92,93) and by the extendable mechanical joints (90,91) in the space delimited by the trolley base at the ground level, or in the ground light (62). 3) The bed of Claim 1 wherein one or more rotary joints are arranged with: a. a slip-ring, b. an encoder and / or resolver device. 4) Bed of Claim 1 equipped with one or more rechargeable electric batteries. 5) A bed of Claim 1 equipped with the following sensors: a. one or more accelerometers, b. a load cell, c. a GPS sensor, d. one or more air temperature and humidity sensors, e. one or more microphones, f. one or more speakers / buzzers. 6) Bed of Claim 1 arranged with a control logic, equipped with one or more microprocessors equipped with both internal and external memory units whose circuit comprises: i. a unit for converting the electrical power taken from the electrical network or from the battery to power each electrical circuit of the Invention, including switching type, said unit comprising a battery charging circuit connected to the rechargeable battery, ii. a plurality of electrical interfaces for driving the motors of the axial and extendable electric actuators, iii. a data communication interface for the sensor devices, iv. an interface for one or more data entry devices, including touch type, in which at least one data entry device is used by the patient, v.a bidirectional data communication interface, whether wired LAN or wireless WLAN and Bluetooth, for access to one or more telecommunications network infrastructures, vi. a wireless communication interface to a 3G / 4G / 5G network infrastructure, including through the use of a SIM and / or Virtual SIM, vii. one or more USB communication ports. 7) A bed of Claim 1 capable of being programmed and monitored via a connection to a network infrastructure to which it is connected. 8) Bed of Claim 1 equipped with the following software functions automatically executing in the background in the control logic: a. generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication resulting from the analysis of the weight parameter detected by the load cell in relation to a unit of time, 5 b. generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication resulting from the analysis of the load cell data, c. generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication based on the analysis of the io data coming from the microphone, d. generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication resulting from the analysis of the GPS sensor data, e.generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication resulting from the analysis of the data from the accelerometer sensor, f. generation of an alarm by signaling on the data entry interface and / or on the network and / or by sound communication resulting from the analysis of the data from the temperature and humidity sensor.].