Transfer device having a platform plate with dual-sided functionality

Abstract

A transfer device is disclosed having an apparatus body, a transfer platform including a platform plate, and a platform lateral actuator. The platform lateral actuator is configured to selectively move the platform plate laterally relative to the apparatus body such that the platform plate can be selectively moved between a plurality of positions including: (i) a stowed position in which the platform plate is retracted relative to the apparatus body, (ii) a first extended position in which a first transverse edge of the platform plate is a leading edge extending outwardly from a first side of the apparatus body, and (iii) a second extended position in which a second transverse edge of the platform plate is a leading edge extending outwardly from a second side of the apparatus body. The transfer device also has a transfer belt running on the platform plate of the transfer platform.

Description

[Technical field]

[0001] The present disclosure generally relates to devices and methods for transferring an object from a location on a first surface onto a platform of the device and then onto a second surface (or back to the first surface). [Background technology]

[0002] Countries around the world are facing an ageing population, where in the coming decades a large proportion of the population will be of a dependent age rather than an independent age where they can contribute to society. Coupled with this ageing population is an increasing number of people whose mobility is limited due to injury, illness, or old age. To be mobile, people need a way to move (from point A to point B) and a way to be transported (from surface A to surface B).

[0003] There are a variety of mobility aids that are commonly used to aid mobility, including walkers, wheelchairs, slings, transfer boards, and gantry hoists. Many of these devices have not been updated or improved in decades, and as a result, fundamental problems remain associated with the operation of these methods of transport. These problems include injury to practitioners, a decline in the health and wellbeing of users as a result of interacting with these devices, and the stress induced in the healthcare sector by the impact of operating these devices.

[0004] However, the reality is that such devices are desperately needed, as 30% to 60% of patients residing in long-term care facilities require transportation assistance to perform everyday tasks such as eating and going to the bathroom. Without the assistance of such devices, people risk remaining largely immobile as their health begins to decline. Similar challenges exist when conducting routine medical checkups and providing regular transport for obese patients. In these situations, multiple transfers may be necessary, including (but are not limited to) transfer from a gurney to a medical imaging table (e.g., an MRI or CT scanner bed), temporary transfers to perform routine tasks (e.g., cleaning the bed, taking patient weight measurements), or simply changing the patient's body position on the surface.

[0005] Currently, the most prevalent devices used to assist with patient transfer consist of a variety of lifts, slings and transfer boards, and seats. Lifts within these families are commonly referred to under the trade name Heuer Lifts, and Heuer is a popular manufacturer of these devices. These lifts have been on the market for decades, with most innovations focused on improving or repackaging existing lift technology. Current technology typically requires some form of "staging" in which a sling (or one (or more) other straps, or harnesses) is inserted under the patient and removed from under the patient after transfer, placing a significant burden on the human operator. Additionally, these devices are often expensive and can place a significant strain on the operating budget of long-term care or medical facilities. These devices are also prone to error, which often results in injury to the patient during transfer, and in some cases even death. Summary of the Invention

[0006] A transfer device is disclosed having a device body with a first end, a second end, a first side, and a second side. The transfer device also has a transfer platform including a platform plate and a platform lateral actuator. The platform lateral actuator is configured to selectively move the platform plate laterally relative to the device body such that the platform plate can be moved between a plurality of positions including: (i) a stowed position in which the platform plate is retracted relative to the device body, (ii) a first extended position in which a first transverse edge of the platform plate is a leading edge extending outwardly from the first side of the device body, and (iii) a second extended position in which a second transverse edge of the platform plate is a leading edge extending outwardly from the second side of the device body. The transfer apparatus also has a transfer belt having a first end fixed to the first driven roller and a second end fixed to the second driven roller, the belt extending from the first driven roller, around a first transverse edge of the platform plate, above the upper surface of the platform plate, around a second transverse edge of the platform plate, and to the second driven roller.

[0007] The transport belt allows for objects to be loaded and / or unloaded from the transport platform without manual manipulation of the objects. At the same time, the transport platform of the transport device can support bi-plane functionality, which can be useful when moving an object, such as a patient, from a first surface onto the transport platform and then onto a second surface. This is a significant improvement over transport platforms that do not support bi-plane functionality.

[0008] In some embodiments, the transport belt is a first transport belt, and the transport device also has a second transport belt that extends below the bottom surface of the platform plate on a first side of the device body, and a third transport belt that extends below the bottom surface of the platform plate on a second side of the device body. The second and third transport belts can help avoid or reduce friction between the first transport belt and a top surface that holds or supports an object.

[0009] In some embodiments, the transport device includes a locking mechanism for selectively engaging and disengaging the second transport belt and the third transport belt with respect to the platform plate. The second and third transport belts can be selectively detached to allow the platform plate and the first transport belt to dynamically cross over the center from the first end of the device body to the second end of the device body or vice versa, even when there is a patient or object on the platform plate. The second and third transport belts can also be removed, for example, for cleaning or maintenance purposes.

[0010] Other aspects and features of the present disclosure will become apparent to those of ordinary skill in the art upon review of the following description of various embodiments of the present disclosure. [Brief description of the drawings]

[0011] For a better understanding of the described embodiments and to show more clearly how they may be carried into effect, reference will now be made, by way of example, to the accompanying drawings in which: [Figure 1] FIG. 1 is a perspective view of a transfer device according to one embodiment; [Diagram 2] FIG. 2 is a perspective view of the transfer device of FIG. 1 with the transfer belt omitted for clarity; [Figure 3A-3C] 3A-3C are schematic diagrams of the transfer device of FIG. 1, showing a retracted position, a first extended position, and a second extended position; [Figure 4]FIG. 4 is a perspective view of another transfer device having a fixed base; [Diagram 5] FIG. 5 is a perspective view of the transfer device of FIG. 1 with portions of the housing omitted for clarity; [Figures 6A-6G] 6A-6G are a series of schematic diagrams showing the transfer apparatus of FIG. 1 being used to transfer a human being from a gurney onto the bed of a medical imaging scanner; [Figure 7A-7E] 7A-7E are a series of schematic diagrams illustrating another transport device used to transport a human; [Figure 8] FIG. 8 is a perspective view of a transport belt path of the transport device of FIG. 1; [Figure 9] FIG. 9 is a perspective view of the transfer device of FIG. 8 with the transfer belt omitted for clarity; [Figure 10] FIG. 10 is a top view of the transfer device of FIG. 9; [Figure 11] FIG. 11 is a side view of the transfer device of FIG. 9; [Figure 12A] FIG. 12A is a schematic diagram of a transport belt path of the transport device of FIG. 1; [Figure 12B] FIG. 12B is a schematic diagram of a transport belt path of the transport device of FIGS. 7A-7E; [Figure 13] FIG. 13 is an end view of the transfer device of FIG. 9; [Figure 14] FIG. 14 is an end view of the transfer device of FIG. 9 with a portion of the support plate removed to show the belt tensioner assembly; [Figure 15A-15B] 15A-15B are perspective views of the belt tensioner assembly of FIG. 14; [Figures 16A-16C] 16A-16C are partial cross-sectional views of the belt tensioner assembly of FIG. 14; [Figure 17] FIG. 17 is an exterior perspective view of the end drive assembly of the transfer device of FIG. 9 with the motor assembly and drive belt omitted for clarity; [Figure 18] FIG. 18 is a perspective view showing the inside of the end drive assembly of FIG. 17; [Figure 19]FIG. 19 is a perspective view of a motor assembly for the end drive assembly of FIGS. 17 and 18; [Figure 20] FIG. 20 is a perspective view of a motor assembly for the end drive assembly of FIGS. 17 and 18; [Figures 21A-21D] 21A-21D are schematic diagrams illustrating a platform extension support of a transfer device in another embodiment; [Fig. 22A-22F] 22A-22F are schematic diagrams of a locking mechanism for selectively attaching and detaching the second and third transport belts; [Figure 23A-23B] 23A-23B are schematic diagrams of another locking mechanism for selectively attaching and detaching the second and third transport belts; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Although exemplary implementations of one or more embodiments of the present disclosure are provided below, it should be understood at the outset that the disclosed systems and / or methods may be implemented using any number of technologies. The present disclosure should in no way be limited to the exemplary implementations, drawings, and technologies illustrated below, including the exemplary designs and implementations shown and described herein, but may be modified within the scope of the appended claims, together with the full range of equivalents.

[0013] Overview of the transport device The drawings show an exemplary embodiment of a transfer device 100 that may be used to move a human body (or other object) from a first location to a second location and / or to reposition a human body (or other object) on a surface. With reference to Figures 1-5, a general description of the transfer device 100 is provided in this section. It should be understood at the outset that the transfer device 100 is shown with very specific features for illustrative purposes only. Other embodiments are possible and are within the scope of the present disclosure.

[0014] 1 and 2, the transfer device 100 has a device body having a first end 101, a second end 102, a first side 113, and a second side 114. The transfer device 100 also has a transfer platform including a platform plate 210 and a platform lateral actuator (not shown). In some embodiments, the transfer device 100 has a transfer belt 150 that covers the platform plate 210, as shown in FIG 1. Note that the transfer belt 150 has been removed from FIG 2 for clarity and to reveal the platform plate 210.

[0015] The platform lateral actuator is configured to selectively move the platform plate 210 laterally relative to the device body, such that the platform plate 210 can be selectively moved between a plurality of positions including: (i) a stowed position in which the platform plate 210 is retracted relative to the device body; (ii) a first extended position in which the first transverse edge 213 of the platform plate 210 is a leading edge extending outward from the first side 113 of the device body; and (iii) a second extended position in which the second transverse edge 224 of the platform plate 210 is a leading edge extending outward from the second side 114 of the device body.

[0016] 3A-3C, an exemplary operation of the transfer device 100 is shown generally, illustrating how the transfer platform 250 may be extended outwardly by means of the platform plate 210. In the position shown in FIG. 3A (sometimes referred to as the stowed or retracted position), the platform plate 210 is centrally located within the device body 110.

[0017] 3B, a transfer platform 250a is extended outwardly from the first side 113 of the device body 110. The transfer platform 250a may be extended by the platform plate 210 being extended laterally outwardly by a platform lateral actuator.

[0018] 3C, the transfer platform 250b is extended outwardly from the second side 114 of the device body 110. In this example, the transfer platform 250b may be extended by the platform plate 210 being extended laterally outwardly by a platform lateral actuator.

[0019] 3A-3C show how the transfer platforms 250 and 250a-b of the transfer device 100 can support a dual-surface capability by allowing the platform plate 210 to extend from the first side 113 and the second side 114 of the device body 110. This dual-surface capability is useful when moving an object, such as a patient, from a first surface onto the transfer platform and then onto a second surface. This is a significant improvement over transfer platforms that do not support dual-surface capability.

[0020] In some embodiments, the transport platforms 250 and 250a-b are covered by the transport belt 150, including when extended outward from the device body 110 and when retracted toward the device body 110. The transport belt allows objects to be loaded and / or unloaded from the transport platform without manual manipulation of the objects.

[0021] In some embodiments, the transport belt 150 is driven using one or more actuators such that when the transport platforms 250 and 250a-b are extended outwardly from the machine body 110 or retracted towards the machine body 110, the top surface of the transport belt 150 does not move and excessive slack in the transport belt 150 is avoided or reduced. As described in more detail below, in some embodiments, the transport belt 150 has a first end fixed to a first driven roller and a second end fixed to a second driven roller such that the belt extends from the first driven roller, around a first transverse edge of the platform plate 210, over the top surface of the platform plate 210, around a second transverse edge of the platform plate 210, and to the second driven roller.

[0022] In some embodiments, as described in more detail below, the transport belt 150 is a first transport belt, and the transport device 100 also has a second transport belt that extends below the bottom surface of the platform plate 210 on a first side of the device body, and a third transport belt that extends below the bottom surface of the platform plate 210 on a second side of the device body. The second and third transport belts can help avoid or reduce friction between the first transport belt and a top surface that holds or supports an object.

[0023] In some embodiments, the transport device 100 includes a locking mechanism for selectively engaging and disengaging the second and third transport belts from the platform plate 210 to allow the platform plate 210 and the first transport belt 150 to dynamically cross over the center from the first side 113 of the device body 110 to the second side 114 of the device body 110, or vice versa, even when a patient or object is present on the platform plate 210. The second and third transport belts may also be removed, for example, for cleaning or maintenance purposes. Further examples of locking mechanisms are described in detail below with reference to Figures 22A-22F and 23A-23G.

[0024] In some embodiments, the transfer apparatus 100 includes a belt processing system (not shown) that can be used to clean or disinfect the first transfer belt 150, the second transfer belt, and / or the third transfer belt. Further exemplary details of the belt processing system are provided below.

[0025] In some embodiments, the transfer apparatus 100 includes a platform plate processing system (not shown) that can be used to clean or sanitize the platform plate 210 of the transfer apparatus 100. Further exemplary details of platform plate processing are provided below.

[0026] As shown in FIGS. 3A to 3C, the device body 110 has a width W D , height H D The device body 110 is located at a distance H floor In some embodiments, as shown in FIG. 3B, the transfer platform 250a may be supported above the first side 113 of the device body 110 by an extended or cantilevered distance D. extend_1 The overall platform width W extend_1 In some embodiments, as shown in FIG. 3C, the transfer platform 250b extends or cantilevers a distance D from the second side 114 of the device body 110. extend_2 The overall platform width W extend_2 to provide.

[0027] In some embodiments, as can be seen in FIGS. 3A-3C, the extension distance D of the transfer platform 250a extend_1 is the width W of the device body 110 D In some embodiments, the transfer platform 250 can extend approximately the width of the device body 110 (e.g., within 25% of the width). For example, when the width of the device body 110 is W D When D = 400 mm to 1000 mm, the transfer platform 250a extend_1 It can be extended by a distance of 360mm to 1250mm, Wextend_1 = 760mm - 2250mm. In some embodiments, there is a corresponding measurement for the transfer platform 250b in the other direction.

[0028] In another embodiment, the transfer device 100 has a telescoping drawer system and a telescoping actuator (not shown) to allow further extension of the transfer platform 250 in the first and second extended positions, whereby the platform plate 210 extends outwardly a distance that is 10% to 110% greater than the width of the device body. For example, if the width of the device body 110 is W D If D = 400 mm to 1250 mm, the transfer platform 250a extend_1 = It can be extended by a distance between 440mm and 1600mm, W extend_1 = 840mm - 2850mm. In some embodiments, there is a corresponding measurement for the transfer platform 250b in the other direction.

[0029] Allowing the transport platforms 250a-b to extend beyond the width of the device body 110 may have one or more advantages. For example, this may make it easier to maneuver the transport device 100 in narrow hallways and / or may reduce the storage footprint of the transport device when the transport platforms are stowed. This is made possible by the telescoping drawer system and telescoping actuators, as described above.

[0030] Relatively narrow W D Advantageously, this can facilitate maneuvering of the transport device 100 and / or reduce its storage area. However, in some cases, the transport device 100 may have a relatively wider W D For example, device body 110 may have a wider, non-cantilevered support surface to increase comfort and / or safety when moving transfer device 100 across a floor surface to transport a patient between locations.

[0031] In some embodiments, the transport device 100 has a support structure 188 that can be configured to adjust the height of the device body 110 and / or the angle of the device body 110 above the floor surface F. In some embodiments, the support structure 188 is adjustable for the height and tilt of the device body 110 in both the major and minor axes. In some embodiments, the support structure 188 has actuators coupled to the transport device controller for controlling the height and / or tilt of the device body 110. This allows the approach angle of the transport platform to be changed before or during transport to reduce reaction forces on the device, reduce pressure on the patient (or subject) being transported, or allow for medically beneficial positions such as Trendelenburg or reverse Trendelenburg when the patient is on the transport platform. The operation of these support actuators may be controlled by the main transport device controller or may be controlled separately by its own controller, operating in parallel through electronic communication with the transport controller.

[0032] 1 and 2, in some embodiments, the transport device 100 has a base 120 that includes wheels 125 to assist in translating the transport device 100 across a floor surface. Some or all of the wheels 125 can be driven by a motor so that the transport device 100 can transport itself across a floor surface. However, it will be understood that the wheels 125 are optional. In other embodiments, the transport device 100 is not configured to be easily moved across a floor surface. For example, referring to FIG. 4, the transport device 100 can have a fixed base 120 without wheels 125. Such an embodiment may be advantageous when the transport device 100 is not intended to be moved during normal operation. For example, the transport device 100 may be fixed in a position adjacent to the bed of a CT or MRI machine.

[0033] In some embodiments, the transport device 100 has at least one control panel coupled to the transport device controller to allow a user to operate the transport device 100. For example, with reference to FIGS. 1 and 2, the transport device 100 has two control panels 190a-b, including one control panel 190a at the first end 101 of the device body 110 and another control panel 190b at the second end 102 of the transport device 100. It will be appreciated that in other embodiments, there may be only one control panel. Alternatively or additionally, the transport device 100 may be configured to be controlled from a remote device (e.g., a pendant or tethered remote control, a mobile computing device such as a tablet or laptop computer, or a control panel located elsewhere in the room in which the transport device is located or in an adjacent room), in which case the transport device 100 may not have a control panel.

[0034] In some embodiments, the transfer apparatus 100 includes a transfer apparatus controller (not shown) that can control one or more actuators (e.g., motors), such as a platform lateral actuator of the platform plate 210, to extend or retract the transfer platforms 250 and 250a-b. In some embodiments, the first and second driven rollers for the transfer belt 150 are operably coupled to the transfer apparatus controller, which is configured to selectively actuate the first and second driven rollers simultaneously or separately from one another. In this manner, the transfer apparatus controller can control the slack of the transfer belt 150. The transfer apparatus controller can also control the belt handling system and / or the platform plate handling system.

[0035] In some embodiments, the transfer device controller is coupled to one or more sensors of the transfer device 100 and utilizes data from the sensors in operating the transfer device 100. In some embodiments, the controller directly controls the transfer device 100 in synchronization with its subsystems, provides feedback to a user about the status of the transfer device 100, and uses the monitored status to provide safe operation (e.g., automatically shutting down the system if the transfer device 100 is being operated in an unsafe manner).

[0036] In some embodiments, the transfer device controller is a single controller (e.g., a single microcontroller) configured to handle all controllable subsystems of the transfer device 100. In other embodiments, the transfer device controller includes multiple controllers (e.g., separate multiple microcontrollers) for handling the controllable subsystems of the transfer device 100. Thus, the term "transfer device controller" covers one or more controllers (e.g., one or more microcontrollers). The purpose of utilizing one or more controllers may be to shorten sensor transmission lengths, increase redundancy, and / or advantageously physically locate the controllers within the transfer device 100 to reduce wait times. Multiple controllers may also be utilized due to practical limitations of current state-of-the-art controllers (e.g., number of general-purpose inputs and outputs available). For example, a first controller may be located at the first end 101 and a second controller may be located at the second end 102 to independently capture signals from sensors attached to each end.

[0037] There are many possibilities for the controllable subsystems of the transport apparatus 100. As described herein, some possibilities for the controllable subsystems can include one or more platform lateral actuators, driven roller(s) for one or more transport belts, a belt handling system, and / or a platform plate handling system. Additional or other controllable subsystems are also possible.

[0038] In some embodiments, one or more actuators controlled by the transport device controller are powered via a battery, which can aid in making the transport device 100 portable. For example, referring to Figure 5, transport device 100 is shown with the housing and control panels 190a-b removed for clarity, revealing a battery pack 130 that can power the transport device controllers, actuators (e.g., motors), etc. of transport device 100. Alternatively, a battery pack may not be provided and transport device 100 may be connected to an external power source.

[0039] The examples described herein generally focus on a transport device 100 having a transport device controller configured to control a transport platform, and optionally providing additional functionality as described herein. However, in alternative embodiments, the transport device 100 may be provided without a transport device controller. For example, the transport device 100 may be fully analog and designed to function without a device controller.

[0040] Human body transport An example of operation of the transfer device 100 in transferring a human body from a first surface to a second surface will now be described with reference to Figures 6A-6G. The operation will be described in relation to the transfer device 100 transferring the human body 10 from a gurney 20 to a bed 30 (e.g., a bed associated with a medical imaging device such as a CT or MRI scanner). However, it should be understood that the transfer device 100 may be used to transfer a human body (or other object) from any standing surface to any standing surface in substantially the same manner.

[0041] The transfer device 100 is positioned between the litter 20 carrying the body to be transferred and the bed 30, for example in the position shown in Figure 6A, such that the leading edge of the platform plate is at the same height as the surface of the litter 20 on which the body 10 is supported. For example, the transfer platform 100 may be supported by a wheeled base 120, as shown in Figures 1 and 2.

[0042] 6B, a platform lateral actuator (e.g., platform drive pinion 382, ​​described below, not shown in FIGS. 6A-6G) can be used to extend the leading edge of the transfer platform laterally outward from the side of the transfer device 100. The transfer platform 250 can be extended until at least a portion of the transfer platform 250 is positioned below the human body 10 (preferably completely between the surface of the litter 20 and the human body 10), with a portion of the transfer belt 150 positioned between the transfer platform 250 and the human body 10.

[0043] In some embodiments, the movement of the transfer platform 250 and / or the transfer belt 150 is controlled to provide limited (or zero) relative motion between the upper surface of the transfer platform 250 (i.e., the transfer belt 150) and the body 10 during part or all of the transfer. In this manner, the transfer platform 250 can extend outward and under the body 10, as shown in Figures 6B-6D, without lifting the body 10 or rolling the body 10 onto the transfer platform 250.

[0044] Optionally, the underside of a guard layer (e.g., guard layer 155, described below, not shown in FIGS. 6A-6G) may contact a surface of the litter 20 supporting the body 10 before and during transport. It will also be appreciated that, although not shown, the support surface 20 may be displaced and / or compressed by the transfer platform 250, e.g., to reduce forces on the body 10, particularly when the transfer platform 250 is extended outwardly and beneath the body 10 as shown in FIGS. 6B-6D.

[0045] In some embodiments, while the transfer platform 250 is extended outward from the transfer device 100 (i.e., Figs. 6B-6D), there is a relative motion between the transfer belt 150 and the surface of the litter 20 to limit the relative motion between the upper surface of the transfer platform 250 (i.e., the transfer belt 150) and the human body 10. For example, while the transfer platform 250 is extended outward from the transfer device 100, the transfer belt 150 is pushing the surface of the litter 20 outward. To reduce or mitigate the friction between the transfer belt 150 and the surface of the litter 20, the surface of the litter 20 can include a low friction couch sheet that allows the transfer belt 150 to move. Alternatively, to reduce the friction due to the relative motion, the transfer belt 150 can be made of a low friction material designed to perform such patient transfer tasks. As some examples, the aforementioned low friction belt material can be silicone or polytetrafluoroethylene (PTFE) coated nylon or polyester fabric.

[0046] Preferably, driven rollers (e.g., driven rollers 160a and 160b, described below, not shown in FIGS. 6A-6G) may be controlled to take up slack in the transport belt 150 during extension and / or retraction of the transport platform 250. For example, tension in the transport belt 150 may be controlled throughout the transport process by monitoring one or more of the following example sensors: current from a motor driver, compression distance of a tensioner (e.g., tensioner 900, described below, not shown in FIGS. 6A-6G), strain sensors (not shown) embedded in the transport belt 150, and / or other suitable sensors.

[0047] 6D and 6E, the driven rollers are then actuated to transport the body 10 along the upper surface of the transport platform 250. For example, this can be accomplished by "winding up" one driven roller while simultaneously "unwinding" the other driven roller to advance the upper surface of the transport belt 150 towards the opposite side of the transport device 100 in an actively controlled manner.

[0048] While the human body 10 is being moved from the litter 20 towards the transfer device 100 (FIGS. 6D-6E), if the transfer platform 250 is not retracted towards the transfer device 100, the transfer belt 150 continues to push the surface of the litter 20 outward. Again, to reduce or mitigate friction between the transfer belt 150 and the surface of the litter 20, the surface of the litter 20 may include a low-friction bed sheet that allows the transfer belt 150 to move. Again, the transfer belt 150 may alternatively be made of a low-friction fabric. In another embodiment, not depicted, the transfer platform 250 is retracted towards the transfer device 100 at the same time that the human body 10 is being moved from the litter 20 towards the transfer device 100.

[0049] 6F, the human body 10 may then be transferred to the bed 30. For example, the transfer device 100 may be controlled to move the transfer platform 250 laterally to a position overlying the bed 30 while controlling the transfer belts 150 to maintain the human body 10 above the transfer device 100, and the transfer belts 150 may then be controlled to advance the patient toward the bed 30. Alternatively, the transfer device 100 may be controlled to move the transfer platform 250 laterally to a position overlying the bed 30 while simultaneously controlling the transfer belts 150 to maintain the human body 10 over the forward end of the transfer platform until the human body 10 and the transfer platform 250 are overlying the bed 30.

[0050] 6G, a platform lateral actuator (e.g., platform drive pinion 382), described below, may be used to retract the transfer platform 250 from beneath the body 10. As shown, the transfer platform 250 may be moved laterally to a patient-free condition, at which point the transfer platform 250 may be in a stowed position within the device body 110.

[0051] It will be appreciated that during use, at least a portion, preferably a majority, and more preferably substantially all, of the transfer platform 250 is vertically supported by a surface to which or on which an object is transported using the transfer platform 250. In the illustrated example, the transfer platform 250 receives vertical support from the litter 20 (FIGS. 6B-6E) and the bed 30 (FIG. 6F).

[0052] To transfer the patient 10 from the bed 30 to the gurney 20, the process shown in Figures 6A through 6G may be performed in reverse order.

[0053] As mentioned above, friction may exist between the transport belt 150 and the surface of the litter 20. While such friction may be reduced or mitigated by a low friction sleeper sheet, other embodiments are possible where contact between the transport belt 150 and the surface of the litter 20 may be reduced or completely avoided, thereby largely avoiding such friction. For example, in another embodiment, the transport device 100 includes a second transport belt (not shown) that extends below the bottom surface of the transport platform 250 when the transport platform 250 is extended outward, the second transport belt being adapted to provide limited or zero relative motion between the bottom surface of the transport platform 250 and the surface of the litter 20. Such an embodiment is briefly described below with reference to Figures 7A-7E.

[0054] 7A-7E, another transfer device 200 for transferring a human body 10 from a litter 20 to a bed 30 is shown. The transfer device 200 of Figs. 7A-7E is similar to the transfer device 100 of Figs. 6A-6G, but in addition to the upper first transfer belt 150, it includes lower guard belts 170a-b including a second transfer belt 170a shown on the left and a third transfer belt 170b shown on the right. When the transfer platform 250 is extended towards and under the human body 10 (Figs. 7B-7D), the third transfer belt 170b provides limited or zero relative motion between the bottom surface of the transfer platform 250 and the surface of the litter 20. Similarly, when the human body 10 is moved towards and placed on the transfer device 100 (FIG. 7E), the third transfer belt 170b provides limited or zero relative motion between the bottom surface of the transfer platform 250 and the surface of the litter 20. The second transfer belt 170a operates substantially similarly to the third transfer belt 170b, but on the opposite side of the transfer device 200.

[0055] 7A-7E thus show the operation of the transport device 200 with the lower guard belts 170a-b arranged such that the extension of the platform simultaneously creates a shear free lower surface with the upper surface, and the lower guard belts 170a-b also withdraw from the center of the platform. The first transport belt 150 interacts with the patient at rest and the lower guard belts 170a-b interact with the patient's support surface. Each transport belt 150 and 170a-b is operatively terminated such that as the transport platform is extended, the transport belts 150 and 170a-b withdraw only from the central cavity of the platform, thereby deploying beneath the patient and creating zero shear or zero relative velocity with respect to the support surface or the patient at rest. One or more of the transport belts 150 and 170a-b may be constructed of a low friction material to reduce the forces exerted on the object being transported, the relative friction between the transport belt 150 and the underlying guard belts 170a-b, and also to reduce the reaction forces acting back on the transport device 100 due to friction generated during the transport process.

[0056] Although the embodiments disclosed herein are particularly described in relation to and for use in transporting human bodies (e.g., individuals with reduced, limited, or no mobility, able-bodied, unconscious, or incapacitated individuals, etc.), it will be appreciated that the embodiments disclosed herein may additionally or alternatively be used to transport other objects, such as objects that are bulky, cumbersome, delicate, and / or difficult to grasp and move. For example, the embodiments disclosed herein may be suitable and / or adapted for use in transporting domestic or non-domestic animals (e.g., in zoos or wildlife care facilities), dead bodies (e.g., in funeral parlor mortuaries), inanimate objects (e.g., in courier, cargo, and / or logistics operations), and the like.

[0057] Example Details Details of an example embodiment of transfer device 100 are provided in this section with reference to Figures 8-21D. It should be understood at the outset that transfer device 100 is illustrated in the figures with very specific features for illustrative purposes only. Other embodiments are possible and are within the scope of this disclosure.

[0058] 8, the transfer apparatus 100 includes a first end drive assembly 300a at a first end 111 corresponding to the first end 101 shown in Figures 1 and 2, and a second end drive assembly 300b at a second end 112 corresponding to the second end 102 shown in Figures 1 and 2. The end drive assemblies 300a-b are connected to each other by lateral support members such that the end drive assemblies 300a-b are at opposite ends of the transfer apparatus 100.

[0059] Figure 9 shows the transport apparatus 100 without the transport belt 150, thereby revealing the platform plate 210. Figures 10 and 11 are top and side views of the transport apparatus of Figure 9. End drive assemblies 300a-b are shown.

[0060] 12A, details of the second end drive assembly 300b can be seen. In some embodiments, the transport belt 150 has a fixed length, and a first end of the transport belt 150 is fixed to a first driven roller 160a and a second end of the transport belt 150 is fixed to a second driven roller 160b. Thus, the transport belt 150 can be characterized as a discontinuous belt 150.

[0061] Utilizing a discontinuous transport belt 150 may have one or more advantages. For example, it may facilitate removal and / or replacement of the transport belt 150 (e.g., by removing the driven roller to which the transport belt is attached). This may result in relatively easy cleaning and / or maintenance of the transport device 100, reducing downtime. This may be particularly important in use cases where cross-contamination is a concern (e.g., hospitals, care facilities, etc.).

[0062] Additionally or alternatively, using a discontinuous belt with driven rollers on both ends may have a mechanical advantage in that the tension in the transport belt may be controlled from both ends of the belt. For example, this may help to provide a desired tension level and / or a desired level of "slack" (or lack thereof) in the transport belt 150.

[0063] 12A, the transport belt 150 extends from the first driven roller 160a and passes around a tensioner 165a. From there, the transport belt 150 extends around roller 440a, around the first transverse edge 213 of the platform plate 210, along the top surface 216 of the platform plate 210, and around the second transverse edge 224 of the platform plate 210. The transport belt 150 then passes around roller 440d, around tensioner 165b, and terminates at the second driven roller 160b.

[0064] In the illustrated example, the transport belt 150 is threaded around two passive (i.e., non-driven) rollers 165a and 165b to maintain tension and avoid potential interfering interactions with other components disposed within the housing (e.g., control system, motor and motor driver, gears, etc.) It will be understood that fewer, more, or no tensioners 165a and 165b may be provided in alternative embodiments.

[0065] 13 shows an example of a first end drive assembly 300a. As mentioned above, end drive assemblies 300a and 300b are provided at ends 101 and 102 of transport apparatus 100. End drive assemblies 300a and 300b are substantially mirror images of each other and preferably operate in concert with each other to substantially simultaneously control opposite ends of transport platform 250, transport belt 150, any one (or more) guard layers 155a and 155b, etc.

[0066] In the illustrated example, the end drive assembly 300a, the first and second belt drive sprockets 320a and 320d are driven by motors 390a and 390d, respectively. The belt drive sprockets 320a and 320d are coupled to the transport belt roller sprockets 360a and 360b by drive belts 361a and 361b, respectively. Rotation of the transport belt roller sprockets 360a and 360b results in rotation of the transport belt rollers 165a and 165b, respectively. In the illustrated example, tension idlers 322a and 322b are also provided to control the tension of the drive belts 361a and 361b, respectively. It will be understood that the tension idlers 322a and 322b are optional.

[0067] Also shown are platform drive sprockets 320b and 320c driven by motors 390b and 390c, respectively. Platform drive sprocket 320b is coupled to a first series of segment drive sprockets 380a and 380b via drive belt 371a. Platform drive sprocket 320c is coupled to a second series of segment drive sprockets 380c and 380d via drive belt 371b. Idler 323a and 323b are provided to control tension in drive belt 371a, and idler 323c and 323d are provided to control tension in drive belt 371b.

[0068] As shown in FIG. 14, the belt tensioner assembly 900 may be disposed between the structural plates of the end drive assemblies 300a-b (discussed further below). With reference to FIG. 15A, the belt tensioner assembly 900 includes a first frame member 910 fixed in fixed relationship to a second frame member 920 by shafts 940a and 940b. A moveable frame member 930 is capable of translating along shafts 940a and 940b. As shown in FIG. 15B, a linear displacement sensor 990 is mounted to provide an output signal based on the relative position of the moveable frame member 930.

[0069] 16A-16C, in the illustrated example, the movable frame member 930 is biased towards the second frame member 920. In the illustrated example, this bias is provided by a first spring 951 and a second spring 952 arranged in series, where the first and second springs have different stiffnesses or spring rates. As a result, in a first range of movement of the movable frame member 930 (e.g., between the positions shown in Figs. 16A and 16B), only the spring with the lower relative spring constant (e.g., spring 951 in this example) deforms, and in a second range of movement of the movable frame member 930 (e.g., between the positions shown in Figs. 16A and 16C), both springs deform, including the spring with the higher relative spring constant (e.g., spring 952 in this example).

[0070] An advantage of this design is that the linear displacement sensor 990 can potentially provide a high resolution signal even at relatively low transport belt tensions (e.g., when no object is in contact with the transport belt 150 and / or transport platform 250) as well as relatively high transport belt tensions (e.g., when a patient is being transported on the transport platform 250).

[0071] In the illustrated example, each tensioner 165a and 165b is passively spring-loaded. Alternatively, each tensioner 165a and 165b may be actively actuated, for example by providing a linear actuator instead of or in addition to one or more passive springs. Additionally or alternatively, each tensioner 165a and 165b may be actively damped, for example using a ferro-damping fluid. In some embodiments, the relative position of each tensioner 165a and 165b may be determined by a positioning sensor (not shown), for example a time-of-flight (TOF) or linear potentiometer. This determined tensioner position may be used by the transport device controller, for example, to measure and / or infer tension in the transport belt 150.

[0072] In some embodiments, each driven roller 160a and 160b is driven using a corresponding motor. It will be appreciated that any suitable motor type (e.g., stepper motor, DC or AC motor, brushless DC (BLDC) motor, pneumatic rotary motor, direct electric motor, etc.) may be used in one or more alternative embodiments. Additionally or alternatively, other gearing (e.g., two or more stages, planetary gearing) may be used. It will be appreciated that in operation, the corresponding motors or actuators may be driven independently or synchronously to accommodate the required function(s).

[0073] As described above, the transport belt 150 passes around the first transverse edge 213 of the platform plate 210 and around the second transverse edge 224 of the platform plate 210. Optionally, some or all of the first transverse edge 213 and the second transverse edge 224 may be provided with one or more friction reducing features. With reference to FIG. 9, in the illustrated example, a number of rollers 255 are disposed along the second transverse edge 224 of the platform plate 210. Alternatively or additionally, some or all of the surfaces adjacent the first and second transverse edges 213 and 224 may be made of a low friction material (e.g., polytetrafluoroethylene (PTFE), polyamide, graphite, acetol, ultra-high molecular weight polyethylene (UHMW PE)) and / or may be coated with a low friction coating. Alternatively or additionally, friction may be reduced by controlled application of compressed air, one or more lubricants, captive ball bearings, or other suitable systems.

[0074] 12A, in some embodiments, flexible guard layers 155a and 155b are provided below the transport belt 150 to reduce or prevent direct contact between the transport belt 150 and a surface to or from which an object is transferred using the transport platform 250. For example, as illustrated in FIG. 12A, a first guard layer 155a may be formed from a fabric and / or flexible material having a first end 156a secured to the platform plate 210 and a second end 157a secured to a take-up roller 158a, which may be spring-loaded and / or positively driven to take up the first guard layer 155a as the transport platform 250b moves toward the retracted position. In the illustrated example, the first guard layer 155a passes over a guide member 159a secured to the end drive assembly 300a such that the guard layer 155a remains adjacent to the underside of the transfer platform 250a when the transfer platform 250a is in the extended position. The second guard layer 155b has a first end 156b secured to the platform plate 210 and a second end 157b secured to a take-up roller 158b, which may be substantially identical to the take-up roller 158a. Optionally, the flexible guard layers 155a and 155b may be formed from a low friction material, such as polytetrafluoroethylene (PTFE), polyamide, graphite, acetol, ultra-high molecular weight polyethylene (UHMW PE), or the like.

[0075] Referring to FIG. 12B, a schematic diagram of the transport belt path of the transport device of FIGS. 7A-7E is shown. End drive assembly 300c has a belt path for first transport belt 150 similar to that shown in FIG. 12A. As in FIG. 12A, transport belt 150 extends from first roller 160a, around idler 165a, around the top surface of the transport platform, around idler 165b, and over second roller 160b. Note, however, that first transport belt 150 is not disposed between shafts 440a and 440b, and between shafts 440c and 440d. Also note that there is a second transport belt 170a and a third transport belt 170b. Second transport belt 170a extends from roller 158a, and third transport belt 170b extends from roller 158b. In some embodiments, both the second transport belt 170a and the third transport belt 170b are passive (e.g., spring loaded using multi-turn torsion springs) and are not connected to any actuator or device controller. In other embodiments, the second transport belt 170a and the third transport belt 170b are coupled to an actuator that is operably coupled to a transport device controller.

[0076] Figure 17 is an exterior perspective view of end drive assembly 300a of transfer device 100 of Figure 9, with the motor assembly and drive belt omitted for clarity. Figure 18 shows the inside of end drive assembly 300a. In the illustrated example, platform drive pinions 382a-d are provided at the top of the platform. These drive pinions 382a-d are coupled to segment drive sprockets 380a-d, respectively (see, e.g., Figure 13).

[0077] In the illustrated example, the teeth of the platform drive pinions 382a-d engage platform rack segments (not shown) provided on the underside of the end of the platform plate 210. It will be appreciated that in one or more alternative embodiments, the engagement between the end drive assembly 300a and the platform plate 210 may not include a rack and pinion arrangement. For example, the platform drive rollers may include a compressible elastomer configured to provide a sufficiently high coefficient of friction between themselves and the underside of the end of the platform plate 210.

[0078] 19 and 20 show one example of a motor hub assembly 380. In the example shown, a motor base plate 315 supports motors 390a-d. Two of the motors, 390a and 390d, are connected to belt drive sprockets 320a and 320d via one or more linear drive shafts, and two of the motors, 390b and 390c, are connected in a similar manner to platform drive sprockets 320b and 320c. Tension idlers 322a and 322b are also shown attached to the motor base plate 315.

[0079] The ability to make the motor hub assembly 380 modular may have one or more advantages. For example, being able to “swap out” an entire motor and drive wheel set may facilitate easier maintenance and / or servicing of the transport device 100, potentially reducing downtime of the transport device 100.

[0080] 1-20, the transfer platform 250 is supported by the device body 110 when in the retracted position and cantilevered from the device body 110 when extended (partially or fully). For example, referring to FIG 12A, the platform plate 210 is supported by rollers 440a-d when in the retracted position.

[0081] 21A-21D show an exemplary embodiment of a transfer device 100 that includes platform extension supports 570a-b that can be used to increase the width of a supported (i.e., non-cantilevered) surface. Such a design can have one or more advantages. For example, patient comfort and safety can be improved when the transfer device 100 is used to move a patient resting on the platform from one room to another.

[0082] 21A and 21C, a first platform extension support 570a extends outwardly from a first side 113 of the device body 110, and a second platform extension support 570b extends outwardly from a second side 114 of the device body 110. In the illustrated example, each platform extension support 570a-b is supported by one or more support arms 575. The support arms 575 are coupled to the device body 110 below the respective platform extension support 570 and provide vertical support for the platform extension support 570 and the transfer platform 250 resting thereon.

[0083] 21B and 21D, in the illustrated example, each platform extension support 570a-b is pivotally connected to the device body 110 (e.g., by use of a hinge or other suitable connection) and each support arm 575 is pivotally connected to the device body 110 and removably secured to a platform extension support 570a-b. An advantage of this design is that the platform extension supports 570a-b can be folded inwardly when not needed to provide a smaller storage area for the transport device 100, as shown, for example, in FIGS. 21b and 21d.

[0084] In the illustrated example, the platform extension supports 570a-b are generally rectangular planar support surfaces. It will be appreciated that in one or more alternative embodiments, the platform extension supports may be differently shaped and / or have different surface features. For example, one or more rollers may be provided on the top surface of the platform extension supports.

[0085] Also, in the illustrated example, the platform extension supports 570a-b may be manually moved between the positions shown in Figures 21A and 21C and the positions shown in Figures 21B and 21D. In one or more alternative embodiments, one or more platform extension support actuators (either "passive" actuators such as gas springs, hydraulic drag cylinders, etc., or "active" actuators such as linear, pneumatic, or hydraulic actuators) may be provided to automatically extend and / or retract the platform extension supports, for example via a control system of the transport apparatus 100.

[0086] 22A-22F, schematic diagrams of a locking mechanism for selectively removing the second and third transport belts are shown. The main purpose of selectively removing the second and third transport belts is to allow the platform plate 210 and the first transport belt 150 to dynamically cross over the center from the first side 113 of the device body 110 to the second side 114 of the device body 110 and vice versa, even when there is a patient or object on the platform plate 210. It should be noted that while FIGS. 22A-22F focus on the locking mechanism on the second side 114 of the device body 110 for the third transport belt 170b, there is a corresponding locking mechanism on the first side 113 of the device body 110 for the second transport belt 170a.

[0087] 22A, the second transverse edge 224 of the platform plate 210 includes a removable member 225 for the third transport belt 170b. In some embodiments, the second transverse edge 224 has rollers 224a along which the first transport belt 150 can move while reducing friction, and the removable member 225 likewise has rollers 225a along which the third transport belt 170b can move while reducing friction. In some embodiments, each end of the removable member 225 is selectively attached to the second transverse edge 224 of the platform plate 210 using a dovetail joint 228. With reference to FIG. 22E, the dovetail joint 228 can be tapered so that the removable member 225 can slide off in only one direction that occurs when the platform plate 210 crosses from the center of the device body 110 (see FIG. 22C) to the first side 113 of the device body 110 (see FIG. 22E). Other attachment means are possible.

[0088] In some embodiments, each end of the detachable member 225 has a spring-loaded magnet 226 that generally has two states: a first state shown in FIG. 22B in which the spring-loaded magnet 226 is pushed into a corresponding hole in the platform plate 210 by a spring when the detachable member 225 is secured to the second transverse edge 224, and a second state shown in FIGS. 22D and 22F in which the magnetic force pulls the spring-loaded magnet 226 down into the recess 227 when the platform plate 210 is in the center of the device body 110 (see FIG. 22D) or across the first side 113 of the device body 110 (see FIG. 22F). The spring-loaded magnet 226 can help ensure that the detachable member 225 remains secured to the device body 110 when the detachable member 225 is removed from the platform plate 210.

[0089] It should be noted that the spring-loaded magnet 226 is one of many possibilities for selectively securing the detachable member 225 to the device body 110. Referring now to Figures 23A-23G, a schematic diagram of another locking mechanism for selectively detaching the second and third transport belts is shown. Figures 23A-23G show a completely mechanical embodiment that does not use magnets. It should be noted that while Figures 23A-23G focus on the locking mechanism on the first side 113 of the device body 110 for the second transport belt 170a, there is a corresponding locking mechanism on the second side 114 of the device body 110 for the third transport belt 170b.

[0090] 23A, the first transverse edge 213 of the platform plate 210 includes a detachable member 214 for the second transport belt 170a. In some embodiments, the first transverse edge 213 has rollers 213a along which the first transport belt 150 can move while reducing friction, and the detachable member 214 likewise has rollers 214a along which the second transport belt 170a can move while reducing friction. In some embodiments, each end of the detachable member 214 is selectively attached to the first transverse edge 213 of the platform plate 210 using a dovetail joint 218. The dovetail joint 218 can be tapered so that the detachable member 214 can slide off in only one direction, which occurs when the platform plate 210 crosses from the center of the device body 110 (see FIG. 23C) to the second side 114 of the device body 110 (see FIG. 23D). Other attachment means are possible.

[0091] 23A, in some embodiments, each end of the detachable member 214 can be selectively attached to the device body 110 using a separate dovetail joint 219. The dovetail joint 219 can be tapered so that the detachable member 214 can slide off only in one direction, which occurs when the platform plate 210 crosses from the center of the device body 110 (see FIG. 23C) to the first side 113 of the device body 110 (see FIG. 23B). The dovetail joint 219 can help ensure that the detachable member 214 remains secured to the device body 110 when the detachable member 214 is removed from the platform plate 210.

[0092] 23E-23G, in some embodiments, each end of the detachable member 214 has a pin 217 that can mechanically pivot into and out of a corresponding slot in the first transverse edge 213. This can serve to secure the detachable member 214 to the first transverse edge 213.

[0093] It should be noted that the locking mechanisms shown and described with respect to Figures 22A-22F and Figures 23A-23G are very specific and are provided for illustrative purposes only. Components such as dovetail joints, spring-loaded magnets, and pins may be present in certain embodiments. More generally, a first locking mechanism may be provided that is configured to selectively attach the second transport belt 170a to the first transverse edge 213 of the platform plate 210 for the first extended position and selectively decouple the second transport belt 170a from the platform plate 210 for the second extended position, and a second locking mechanism may be provided that is configured to selectively attach the third transport belt 170b to the second transverse edge 224 of the platform plate 210 for the second extended position and selectively decouple the third transport belt 170b from the platform plate 210 for the first extended position.

[0094] In some embodiments, the transfer apparatus 100 includes one or more transfer belt treatment systems for subjecting the first transfer belt 150 and / or the second and third transfer belts 170a-b to cleaning and / or sterilization treatment. For example, an ultraviolet (UV) light emitter (not shown) may be disposed within the apparatus housing to continuously or selectively irradiate the top surface of the transfer belt 150, or both the top and bottom surfaces of the transfer belt 150, with UV light as it passes the emitter. Such an arrangement may be characterized as an ultraviolet germicidal irradiation system.

[0095] Additionally or alternatively, a fluid chamber (not shown) may be defined within the housing interior, and a fluid agitator (e.g., an ultrasonic agitator) may be provided to continuously or selectively agitate the fluid as the transport belt 150 passes through the fluid chamber. Such an arrangement may be characterized as a fluid agitation system or an ultrasonic bath system.

[0096] Additionally or alternatively, a brush, sponge, microfiber, or other material (not shown) may be disposed within the housing and contact the surface of the transport belt 150 to remove dirt or debris from the top surface of the transport belt 150, or from both the top and bottom surfaces of the transport belt 150, as the transport belt advances or retreats. Optionally, a reservoir of cleaning and / or disinfecting solution (e.g., alcohol, peroxide, bleach, etc.) may be provided for dispensing the cleaning and / or disinfecting solution onto the brush, sponge, microfiber, or other material and / or directly onto the transport belt 150.

[0097] It will be appreciated that in embodiments including a fluid ejection device, fluid sensitive portions of the device (e.g., electronics) may require "fluid proofing" or at least increased protection against intrusion.

[0098] In some embodiments, the transport belt processing system is operably coupled to a transport device controller, the transport device controller configured to selectively activate one or more of the UV light emitter, the fluid emitter, and the fluid agitator simultaneously or separately from one another.

[0099] In some embodiments, a manual actuator (e.g., a depressible button) may be provided to selectively activate the transport belt treatment system to deliver one or more treatment agents (e.g., UV light, disinfectant solution, ultrasonic bath agitation) to the transport belt 150. For example, a UV light emitter may be configured to emit UV light for a preset period of time (e.g., 10 seconds, 30 minutes) in response to depression of the manual actuator, which may be selected based on, for example, the required decontamination level, the distance of the emitter from the belt 150, the intensity of the light emitted by the emitter, and / or other factors known to those of skill in the art. As another example, an agitator may be configured to agitate fluid in a chamber for a preset period of time (e.g., 10 seconds, 30 minutes) in response to depression of the manual actuator, which may be selected based on, for example, the required decontamination level, the composition of the fluid in the chamber, and / or other factors known to those of skill in the art. Additionally or alternatively, the transport belt treatment system may be configured to provide one or more treatment agents (e.g., UV light, disinfectant solution, ultrasonic agitation) at preset intervals (e.g., after every transfer operation, every 24 hours) and / or at preset times after a transfer operation has been performed without the need for manual actuation.

[0100] Also provided in some embodiments is a platform plate processing system. Similar to the transport belt processing system, the platform plate processing system can include a UV light emitter configured to irradiate UV light toward at least a top surface of the platform plate 210, a fluid emitter configured to eject at least one of a cleaning fluid and a disinfecting fluid toward at least a top surface of the platform plate 210, and / or a fluid agitator configured to agitate fluid in a fluid chamber through which the platform plate 210 is configured to pass. In some embodiments, a transport device controller is operably coupled to the platform plate processing system, the transport device controller configured to selectively activate one or more of the UV light emitter, the fluid emitter, and the fluid agitator, either simultaneously or separately from one another.

[0101] In some embodiments, the platform plate processing system is operably coupled to a transfer device controller, the transfer device controller configured to selectively activate one or more of the UV light emitter, the fluid emitter, and the fluid agitator simultaneously or separately from one another.

[0102] Numerous modifications and variations of the present disclosure are possible in light of the above teachings, and it is therefore to be understood that, within the scope of the appended claims, the present disclosure may be practiced otherwise than as specifically described herein.

Claims

1. 1. A transfer device comprising: a device body having a first end, a second end, a first side, and a second side; 1. A transport platform comprising: a platform plate having a first longitudinal end, a second longitudinal end, a first transverse edge extending between the first longitudinal end and the second longitudinal end, and a second transverse edge extending between the first longitudinal end and the second longitudinal end; a platform lateral actuator configured to selectively move the platform plate laterally relative to the device body, the platform plate being movable between a plurality of positions consisting of: (i) a stowed position in which the platform plate is retracted relative to the device body; (ii) a first extended position in which the first transverse edge is a leading edge extending outwardly from the first side of the device body; and (iii) a second extended position in which the second transverse edge is a leading edge extending outwardly from the second side of the device body; and a transport belt having a first end fixed to a first driven roller and a second end fixed to a second driven roller, the transport belt extending from the first driven roller, around the first transverse edge, over an upper surface of the platform plate, around the second transverse edge, and to the second driven roller; a transfer platform comprising: A transfer device comprising:

2. 2. The transfer device of claim 1, wherein the transfer belt is a first transfer belt, and the transfer device further comprises a second transfer belt extending below the bottom surface of the platform plate on the first side of the device body, and a third transfer belt extending below the bottom surface of the platform plate on the second side of the device body.

3. a first locking mechanism configured to selectively attach the second transport belt to the first transverse edge of the platform plate for the first extended position and configured to selectively detach the second transport belt from the platform plate for the second extended position; a second locking mechanism configured to selectively attach the third transport belt to the second transverse edge of the platform plate for the second extended position and configured to selectively detach the third transport belt from the platform plate for the first extended position; and The transfer device of claim 2 further comprising:

4. the first locking mechanism is configured to selectively lock the second transport belt to the device body for the second extended position; and The transport device of claim 3 , wherein the second locking mechanism is configured to selectively secure the third transport belt to the device body for the first extended position.

5. The transport device according to any one of claims 2 to 4, wherein the second transport belt and the third transport belt are mounted on a driven roller.

6. 1. A belt processing system comprising: an ultraviolet (UV) light emitter configured to direct ultraviolet light onto at least a top surface of the transport belt; a fluid emitter configured to direct at least one of a cleaning fluid and a sanitizing fluid onto at least an upper surface of the transport belt; a fluid agitator configured to agitate a fluid in a fluid chamber through which the transport belt is configured to pass; The transfer device according to any one of claims 1 to 5, further comprising a belt handling system comprising at least one of:

7. 1. A platform plate processing system comprising: a UV light emitter configured to direct ultraviolet light onto at least a top surface of the platform plate; a fluid emitter configured to direct at least one of a cleaning fluid and a sanitizing fluid toward at least a top surface of the platform plate; a fluid agitator configured to agitate a fluid in a fluid chamber through which the platform plate is configured to pass; The transfer apparatus of any one of claims 1 to 6, further comprising a platform plate handling system comprising at least one of:

8. 8. The transfer device of claim 1, wherein the device body has a width between the first side and the second side of the device body, and in the first extended position and the second extended position, the platform plate extends outwardly a distance equal to ±25% of the width of the device body.

9. 9. The transfer device of claim 8, wherein the width of the transfer device is in the range of 400mm to 1000mm and, in the first and second extended positions, the platform plate extends outwardly in the range of 360mm to 1250mm.

10. 8. The transfer device of claim 1, further comprising a telescoping actuator and a telescoping drawer system that allows further extension of the platform plate in the first and second extended positions, whereby the platform plate extends outwardly a distance that is between 10% and 110% greater than the width of the device body.

11. 11. The transfer device of claim 10, wherein the width of the device body is in the range of 400mm to 1250mm, and in the first and second extended positions, the platform plate extends outwardly in the range of 440mm to 1600mm.

12. A transfer device according to any one of claims 1 to 11, further comprising an apparatus support structure fixed to the apparatus body, the apparatus support structure supporting the apparatus body on a floor surface, the apparatus support structure being configurable to adjust the height and / or angle of the apparatus body from the floor surface.

13. The transfer device of claim 12 , wherein the device support structure comprises a plurality of wheels that facilitate translational movement of the transfer device across the floor surface.

14. 14. The transport device of claim 13, wherein at least one of the plurality of wheels is motor driven to enable the transport device to transport itself across the floor surface.

15. A transfer apparatus according to any one of the preceding claims, further comprising a transfer apparatus controller configured to control the transfer platform including at least the platform lateral actuator of the platform plate.

16. 16. The transfer device of claim 15, wherein the first and second driven rollers for the transport belt are operably coupled to the transfer device controller, and the transfer device controller is configured to selectively operate the first and second driven rollers simultaneously or separately.

17. The transfer device of claim 15 when dependent on claim 6, wherein the belt processing system is operably connected to the transfer device controller, and the transfer device controller is configured to selectively operate one or more UV light emitters, fluid emitters and fluid agitators simultaneously or separately.

18. The transfer apparatus of claim 15 when dependent on claim 7, wherein the platform plate processing system is operably connected to the transfer apparatus controller, and the transfer apparatus controller is configured to selectively operate one or more UV light emitters, fluid emitters and fluid agitators simultaneously or separately.

19. The transfer device of claim 15 when dependent on claim 12, wherein the device support structure is operably connected to the transfer device controller, and the transfer device controller is configured to adjust the height of the device body from the floor surface and / or the angle of the device body.

20. A transfer apparatus according to any one of claims 15 to 19, wherein the transfer apparatus comprises a plurality of controllable subsystems, and the transfer apparatus controller comprises a single controller configured to control the transfer platform and all the controllable subsystems.

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