Person assistive transfer system and method

Abstract

Provided is a transfer system, connector and methods of use and manufacturing the same. The transfer system is configured to connect to a mobility device for assisting ambulation or transfer of a user from the mobility device. The transfer system includes transfer arm and a connector configured to securely connect the transfer arm to the mobility device. The connector is configured to removably clamp to a post of the mobility device and removably connect to a proximal post of the transfer arm. When connected, the transfer arm is disposed a fixed distance from the mobility device at a predetermined height, extends from the mobility device, and provides a support structure for transfer and ambulation. The connection supports, at least in part, loading of the transfer arm in transfer or ambulation, for passing, at least in part, the loading from the first transfer arm to the mobility device.

Description

PERSON ASSISTIVE TRANSFER SYSTEM AND METHOD Technical Field

[0001] The following relates generally to mobility assistive devices and more particularly to transfer systems for transferring a person from a mobility assistive device.Introduction

[0002] The aging nature of our population and increased longevity has increased the population with compromised mobility and correspondingly the use of mobility assistive devices, such as wheelchairs, referred to herein as mobility devices and also know as mobility aids. This has increased the demand and strain on assistive systems, including personnel and devices that assist in the transfer of mobility device users out of the mobility devices, for example to a bed, chairs, toilets or vehicles.

[0003] Some existing transfer systems are standalone systems which operate independently from a mobility device. These systems are often cumbersome and complex to use involving multiple steps, specialized tools such as lifts or slings, and manually moving users from mobility devices. These transfers typically involve one or more caregivers and mitigates the potential, where possible, for the user to independently transfer and does not accommodate patient contribution or ambulation. This dependency reduces patient dignity and feeling of vulnerability while obstructing or avoiding ambulation training ultimately negatively affecting use confidence and quality of life.

[0004] Furthermore, these systems and the corresponding transfers can be overwhelming for family caregivers or staff with limited training or even trained personnel. Caregivers may experience significant physical strain during transfers which contributes to a high demand on caregivers leading to injuries and burnout. The complexity also increases the risk of falling during ambulation or transfer. Particularly, the complexity and independent operation of these transfer systems increase distract from safety precautions in transfer for both caregivers and the user and may increase the number of caregivers to safely assist with transfers. For example, with stand alone systems, during transfer or ambulation two therapists may be utilized, one focusing on the transfer / transfer system and the other on the mobility device for support. This volume of caregiver capacity andcostly specialized equipment contributes to inefficient and high operational costs particularly at caregiver facilities.

[0005] Some existing transfer systems that affix to mobility devices are custom made for a particular mobility device and incompatible with others. For example, these systems may be designed to the specifications of the corresponding mobility device. The connector of these systems that attaches the transfer system to the mobility device is therefore not predetermined to be reliable for supporting expected loads if the transfer system is deployed to an unintended mobility device. Obtaining and storing expensive, heavy, large, bulky and cumbersome custom and / or dedicated transfer systems is inefficient and logistically challenging, particularly in home or smaller health care settings. Therefore, for example, a care facility may only be able to accommodate patients with certain mobility devices. Even if compatible mobility devices are available to the user, unfam iliarity with accommodated mobility devices can be stressful or unsafe. This contributes to accessibility limitations and high a risk of use of inadequate or mismatched tools, often unintentionally, for mobility support.

[0006] Some existing transfer systems the loads are supported by a connection to another object such as walker chair. While these systems may still be connected to the mobility device this connection is predominantly to restrict separation or other relative motion between the transfer system and the mobility device. Connecting the system to an additional object, however, restricts the maneuvering of the mobility device and the transfer system (separately or in tandem) and relies on the additional object and secondary connection to support the transfer loads. This presents additional failure risk that may lead to injury.

[0007] Accordingly, there is a need for an improved transfer system that overcomes at least some of the disadvantages of existing anatomy simulators.Summary

[0008] Provided is a transfer system connector for connecting a transfer arm to a mobility device. The connector includes a mobility device connection assembly configured to removably connect to a mobility device post of the mobility device at a clampinglocation. The connection is constrained in all degrees of freedom. The mobility device connection assembly includes a collar configured receive the mobility device post and to clamp the mobility device collar assembly to the mobility device post at a post interface of the collar. The collar includes a mounting piece with a mount extension extending therefrom. The mount extension is configured to connect to a transfer arm mount assembly. The mobility device connection assembly includes a locking mechanism configured to transition the collar from an open configuration to receive the post to a locked configuration to affect a clamping pressure between the mobility device post and the collar. The connector includes a transfer arm mount assembly. The transfer arm mount assembly includes at least one arm mount fastener configured to connect the transfer arm mount assembly to the mobility device collar assembly. The transfer arm mount assembly includes at least one plate fastener configured to connect to the transfer arm to the transfer arm mount assembly for connecting the transfer arm to the mobility device. When the transfer arm is connected to the mobility device by the connector, the transfer arm is at least partially supported by the mobility device when loaded, is disposed a fixed distance from the mobility device and at a predetermined height, extends out from the mobility device away from an initial position of the user, and provides a support structure for transfer and ambulation.

[0009] The connection of the mobility device collar assembly to the transfer arm mount assembly may be by a mounting block disposed therebetween and fastened to each of the mobility device collar assembly and the transfer arm mount assembly by fasteners. The fastened connection may constrain, with play, the mobility device collar assembly to the transfer arm mount assembly in all directions.

[0010] The mobility device collar assembly may include a hinge piece, rotatably connected to the mounting piece via a hinge connection. The hinge connection may be disposed offset from the collar interface, wherein rotating the hinge piece about the hinge connection transitions the mobility device collar assembly from the open to a closed configuration about the mobility device post.

[0011] The locking mechanism may be configured as a quick release mechanism. The quick release mechanism may include a swing arm and a bolt. The swing arm whenswung may transition the locking mechanism from an open configuration to an engaged configuration and pull a distal end of the bolt towards the mounting piece for locking the mobility device collar assembly.

[0012] The transfer arm mount assembly may include a font plate and back plate. The front plate and back plate may each be configured in a profile conforming to a transfer arm post of the transfer arm. When the transfer arm post is disposed between the back plate and front plate fastened together by the at least one plate fastener, the front plate and back plate may be configured to constrain the orientation of the transfer arm post parallel to the mobility device post.

[0013] The transfer arm mount assembly may include a mount plate, configured to be fastened to the mount extension. The mount plate may include an under surface configured to be disposed parallel to an upper surface of the mount extension when the transfer arm mount assembly is fastened to the mobility device collar assembly.

[0014] The at least one arm mount fastener may include at least one vertical pin extending vertically from the transfer arm mount assembly. The at least one arm mount fastener may include at least one vertical screw configured to threadingly fasten the transfer arm mount assembly to the mobility device collar assembly. The at least one vertical pin may constrain the disposition of the transfer arm mount assembly relative the mobility device collar assembly against rotation and horizontal separation. The at least one vertical screw may constrain the disposition of the transfer arm mount assembly relative the mobility device collar assembly against vertical separation.

[0015] In another aspect, provided is a transfer system configured to connect to a mobility device for assisting ambulation of a user or transfer of the user out of the mobility device. The transfer system includes a first transfer arm configured to connect to a mobility device first post of the mobility device. The first transfer arm includes a proximal post configured to connect to the mobility device first post and, when connected, be disposed vertically and substantially parallel to the mobility device first post at a fixed distance from the mobility device first post. The first transfer arm includes a handle section extending perpendicularly from the proximal post and, when the first transfer arm is connected to the mobility device, is configured to provide a support structure for transferand ambulation. The transfer system includes a first connector configured to removably clamp to the mobility device first post and removably connect to the proximal post to connect first transfer arm to the mobility device. When the first transfer arm is connected to the mobility device by the first connector the first transfer arm is disposed a fixed distance from the mobility device and at a predetermined height, the extends out from the mobility device away from an initial position of the user, provides a support structure for transfer and ambulation via the connection configured to support, at least in part, loading of the first transfer arm in transfer or ambulation, for passing, at least in part, the loading from the first transfer arm to the mobility device.

[0016] The transfer system may include a second transfer arm for providing a second support structure in ambulation or transfer and a second connector configured to connect the second transfer arm to a mobility device second post of the mobility device.

[0017] The first transfer arm may include a distal post extending downward from the handle portion and disposed distally from the proximal post when the first transfer arm is connected to the mobility device. The first transfer arm may include a bottom support extending horizontally from the proximal post and disposed below the handle section when the first transfer arm is connected to the mobility device.

[0018] The transfer system may include a distal foot. The distal foot may be supported by the distal post, disposed at or below a bottom end of the distal post, and configured to interface with a ground surface when the first transfer arm is connected to the mobility device.

[0019] The distal foot may include a roller, wheel, or castor.

[0020] The transfer system may include a telescoping assembly. The telescoping assembly may be disposed at and supported by the distal post and configured to extend an adjustable length from the bottom end of the distal post. The telescoping assembly may be connected to the distal foot for disposing the distal foot in contact with the ground surface.

[0021] The proximal post may include a plurality of connector attachment means for accommodating attachment of the first connector to the proximal post at various heights along the proximal post.

[0022] The first connector may include a first mobility device connection assembly configured to removably clamp to the first mobility device post of the mobility device at a first clamping location of the first mobility device post. The first connector may include at least one arm fastener configured to connect the first transfer arm to the first mobility device connection assembly.

[0023] In another aspect, provided is a method of using a transfer system. The method includes removably clamping a first connector to a first mobility device at first clamping location of a first mobility device first post of the first mobility device wherein the first mobility device first post at the first clamping location is a post oriented substantially vertically. The method includes removably connecting a first transfer arm to the first connector to connect the first transfer arm to the first mobility device. When the first transfer arm is connected to the first mobility device by the first connector the first transfer arm is disposed a fixed distance from the first mobility device and at a predetermined height, extends out from the first mobility device away from an initial position of a user, and provides a support structure for transfer and ambulation via the connection. The connection via the first connector is configured to support, at least in part, loading of the first transfer arm in transfer or ambulation, for passing, at least in part, the resulting loading of the first connector to the mobility device.

[0024] Transferring the user from the first mobility device may include shifting the user from the mobility device to be supported, at least in part by the transfer system, supporting the user by the transfer system, and shifting the user from being supported by the first transfer arm to being supported by a secondary structure independent of the transfer system.

[0025] Shifting or supporting the user may be facilitated by a caregiver who is not the user.

[0026] The method may include pulling, by the user, the first transfer arm from a first location to a second location. The first mobility device may be pulled, via theconnection to the transfer system, from the first location to a second location at a fixed separation from the transfer system.

[0027] The method may include removably clamping a second connector to the first mobility device at a second clamping location of a first mobility device second post of the first mobility device wherein the first mobility device second post at the second clamping location is a post oriented substantially vertically and removably connecting a second transfer arm to the second connector to connect second transfer arm to the first mobility device. The second transfer arm when connected to the first mobility device by the second connector the second transfer arm may be disposed a fixed distance from the first mobility device and at a predetermined height, may extend out from the first mobility device away from the initial position of the user, and may provide a support structure for transfer and ambulation via the connection, the connection via the second connector configured to support, at least in part, loading of the second transfer arm in transfer or ambulation, for passing, at least in part, the resulting loading of the second connector to the mobility device.

[0028] Where the first clamping location is at a first clamp height and the second clamping location is at a second clamp height, the first clamp height and second clamp height may be different heights.

[0029] Where removably connecting the first connector to the first transfer arm is at a first proximal post height along a first proximal post of the first transfer arm and removably connecting the second connector to the second transfer arm is at a second proximal post height along a second proximal post of the second transfer arm, the first proximal post height may be disposed a different distance along the first proximal post from a first handle section of the first transfer arm than the distance of the second proximal post height from the second handle section along the second proximal post. The first proximal post height may be offset from the second proximal post height based on difference in heights of first clamp height and the second clamp height.

[0030] The method may include disconnecting the first connector from the mobility device for separating the first transfer arm from the mobility device.

[0031] The method may include clamping the first connector to a second mobility device first post of a second mobility device.

[0032] In another aspect, provided is a method of manufacturing a transfer system connector for connecting a transfer arm to a mobility device. The method includes assembling a mobility device connection assembly. The mobility device connection assembly is configured to removably connect to a mobility device post of the mobility device at a clamping location the connection constrained in all degrees of freedom. Assembling the mobility device connection assembly includes connecting a collar and a locking mechanism. The collar is configured receive the mobility device post and to clamp the mobility device collar assembly to the mobility device post at a post interface of the collar. The collar includes a mounting piece with a mount extension extending therefrom. The mount extension configured to connect to a transfer arm mount assembly. The locking mechanism configured to transition the collar from an open configuration to receive the post to a locked configuration to affect a clamping pressure between the mobility device post and the collar. The method includes connecting a transfer arm mount assembly to the mobility device connection assembly by at least one arm mount fastener. When the transfer arm is connected to the mobility device by the connector via at least one plate fastener configured to connect to the transfer arm to the transfer arm mount assembly, the transfer arm is at least partially supported by the mobility device when loaded, is disposed a fixed distance from the mobility device and at a predetermined height, extends out from the mobility device away from an initial position of the user, and provides a support structure for transfer and ambulation.

[0033] Connecting the mobility device collar assembly to the transfer arm mount assembly may include disposing a mounting block disposed between the mobility device collar assembly and the transfer arm mount assembly and fastening the mounting block to each of the mobility device collar assembly and the transfer arm mount assembly by fasteners. The fastened connection may constrain, with play, the mobility device collar assembly to the transfer arm mount assembly in all directions.

[0034] Assembling the mobility device connection assembly may include rotatably connecting a hinge piece to the mounting piece via a hinge connection. The hingeconnection may be disposed offset from the collar interface. Rotating the hinge piece about the hinge connection may transition the mobility device collar assembly form the open to a closed configuration about the mobility device post.

[0035] The locking mechanism may be configured as a quick release mechanism. The quick release mechanism may include a swing arm and a bolt. The swing arm when swung may transition the locking mechanism from an open configuration to an engaged configuration and pull a distal end of the bolt towards the mounting piece for locking the mobility device collar assembly.

[0036] The transfer arm mount assembly may include a font plate and back plate. The front plate and back plate may be configured in a profile conform to a transfer arm post of the transfer arm. When the transfer arm post is disposed between the back plate and front plate fastened together by the at least one plate fastener, the front plate and back plate may be configured to constrain the orientation of the transfer arm post parallel to the mobility device post.

[0037] The transfer arm mount assembly may include a mount plate, configured to be fastened to the mount extension. The mount plate may include an under surface configured to be disposed parallel to an upper surface of the mount extension when the transfer arm mount assembly is fastened to the mobility device collar assembly.

[0038] The at least one arm mount fasteners may include at least one vertical pin extending vertically from the transfer arm mount assembly. The at least one arm mount fasteners may include at least one vertical screw configured to threadingly fasten the transfer arm mount assembly to the mobility device collar assembly. The at least one vertical pin may constrain the disposition of the transfer arm mount assembly relative the mobility device collar assembly against rotation and horizontal separation. The at least one vertical screw may constrain the disposition of the transfer arm mount assembly relative the mobility device collar assembly against vertical separation.

[0039] Other aspects and features will become apparent to those ordinarily skilled in the art, upon review of the following description of some exemplary embodiments.Brief Description of the Drawings

[0040] The drawings included herewith are for illustrating various examples of articles, methods, and apparatuses of the present specification. In the drawings:

[0041] Figure 1A is a block diagram of a mobility device and connected transfer system, according to an embodiment;

[0042] Figure 1 B is a perspective view schematic of the mobility device connected to the transfer system of Figure 1A, according to an embodiment;

[0043] Figure 1 C is a perspective view schematic of the first transfer arm of Figure 1 B connected to the first post of Figure 1 B by the first connector of Figure 1 B, according to an embodiment;

[0044] Figure 2 is a block diagram of a connector of Figure 1A, according to an embodiment;

[0045] Figure 3 is a block diagram of a connector of Figure 1A, according to a further embodiment;

[0046] Figure 4A is an exploded perspective view schematic of a right hand connector of Figure 1A, according to an embodiment;

[0047] Figure 4B is an exploded perspective view schematic of a left hand connector of Figure 1A, according to an embodiment;

[0048] Figure 5A is a block diagram of a transfer arm of Figure 1 A, according to an embodiment;

[0049] Figure 5B is a side view schematic of a transfer arm of Figure 5A, according to an embodiment;

[0050] Figure 5C is a side view schematic of a telescoping assembly of Figure 5A, according to an embodiment;

[0051] Figure 6 is a flow diagram of a method of using the transfer system of Figure 1A; and

[0052] Figure 7 is a flow diagram of a method of manufacturing a connector of Figure 2, according to an embodiment.Detailed Description

[0053] Various apparatuses or processes will be described below to provide an example of each claimed embodiment. No embodiment described below limits any claimed embodiment and any claimed embodiment may cover processes or apparatuses that differ from those described below. The claimed embodiments are not limited to apparatuses or processes having all of the features of any one apparatus or process described below or to features common to multiple or all of the apparatuses described below.

[0054] Further, although process steps, method steps, algorithms or the like may be described (in the disclosure and I or in the claims) in a sequential order, such processes, methods and algorithms may be configured to work in alternate orders. In other words, any sequence or order of steps that may be described does not necessarily indicate a requirement that the steps be performed in that order. The steps of processes described herein may be performed in any order that is practical. Further, some steps may be performed simultaneously.

[0055] When a single device or article is described herein, it will be readily apparent that more than one device I article (whether or not they cooperate) may be used in place of a single device I article. Similarly, where more than one device or article is described herein (whether or not they cooperate), it will be readily apparent that a single device I article may be used in place of the more than one device or article.

[0056] The following relates generally to mobility assistive devices and more particularly to transfer systems for transferring a person from a mobility device.

[0057] Referring to Figures 1A, 1B, and 1C shown therein is a block diagram and perspective view schematic, and focused view schematic, respectively, of a mobility device (MD) 10 connected to a transfer system 100, according to an embodiment.

[0058] The transfer system 100 facilitates the transfer of a user 12 out of the mobility assistive device 10. The transfer system 100 may also facilitate ambulation andambulation training. This may be accomplished without a secondary mobility assistive device such as a walker. Mobility assistive devices 10, such as wheelchairs or walking chairs, are referred to herein as mobility devices 10 and are also know as mobility aids 10. Users 12 may also be referred to herein as patients 12.

[0059] The transfer system 100 includes a transfer apparatus 118. The transfer system includes a transfer apparatus 118. The transfer apparatus 118 is a structure that facilitates the transfer of the user out of the mobility device 10.

[0060] The transfer apparatus 118 includes at least one transfer arm 180-1. The transfer arm 180-1 provides a handrail like structure to facilitate the transfer of a user 12 out to the mobility device 10. In some embodiments, the transfer arm 180-1 also facilitates ambulation and ambulatory training.

[0061] The transfer system 100 includes at least one connector 110-1. The connector 110-1 is configured to, when engaged, establish a secure and stable connection between the transfer arm 180-1 and the mobility device 10. The connection is fully constrained (i.e. in 6 degrees of freedom) from movement relative to the mobility device 10. In some embodiments, this connection is removeable.

[0062] The transfer arm 180-1 is configured to be connected to a post 14-1 of the mobility device 10. The post 14-1 may be any substantially vertical component of the mobility device 10. It will be appreciated that irregular or non-predetermined cross sections or angular deviations from vertical of the post 14-1 may be accommodated, for example by the insert 228 of Figure 2.

[0063] Locations on the post 14-1 that accommodate a connection to the transfer system 100 are referred to as clamp location 16-1 orclamping location 16. Each clamping location 16 may be shaped or disposed relative to the remainder of the mobility device to accommodate the connection. For example, post 14-1 at clamping location 16-1 may have transvers cross-section shaped and proportioned to be received and clamped by the connector 110-1, be sufficiently vertical, be disposed a desirable vertical separation from any conflicting structures such as an arm rest and / or have a greater than 2 cm clearance around the clamping location 16-1 to facilitate the engagement of the connection.

[0064] As the connector accommodates a wide range of post 14-1 configurations and clamping locations 16-1 , the transfer system accommodates a wide range of mobility device 10 configurations.

[0065] In some embodiments, the transfer apparatus 118 includes a second transfer arm 180-2 and corresponding second connector 110-2. The second transfer arm 180-2 is configured similarly to the first transfer arm 180-1. The second connector 110-2 is configured similarly to the first connector 110-1. The transfer arms 180 are referred to herein collectively as transfer arms 180, generically as transfer arm 180, and particularly as transfer arm 180-#. The connectors 110 are referred to herein collectively as connectors 110, generically as connector 110, and particularly as connector 110-#.

[0066] The second transfer arm 180-2 is configured to be connected to a second post 14-2 by the second connector 110-2 at a second clamping location 16-2. Clamping locations 16-1 and 16-2 are referred to herein collectively as clamp locations 16 or clamping locations 16 and generically as clamp location 16 or clamping location 16. While clamping location 16-2 is similarly configured to clamping location 16-1 to accommodate the connection of connector 110-2, it is expressly contemplated that clamping location 16-1 may differ from clamping location 16-2, for example in configuration, location, and relation to the remainder of the mobility device 10. In an example clamping location 16-1 is disposed higher on the mobility device 10 and has a smaller clearance than clamping location 16-2, the cross section of the post 14-1 at clamping location 16-1 is circular, and the cross section of the post 14-2 at clamping location 16-2 is square.

[0067] When connected to the second post 14-2 the second transfer arm 180-2 is disposed parallel and opposite the first transfer arm 180-1. The second transfer arm 180-1 provides an additional structure for support during transfer and ambulation.

[0068] In some embodiments, the configuration of connector 110-1 differs from the configuration of connector 110-2, for example to accommodate differences in the posts 14-1 and 14-2 at clamping locations 16-1 and 16-2, respectively. In an example, connector 110-1 is configured as a right hand connector 110-1 and connector 110-2 is configured as a left hand connector 110-2 (i.e. mirror images) to accommodate deployment on opposite sides of the mobility device 10.

[0069] The connectors 110 securely and stably connect the transfer apparatus 118 to the mobility device 10 to efficiently facilitate patient mobility, safety and caregiving efficiency particularly across home and healthcare environments such as homes, hospitals, long-term care facilities, and rehabilitation centers addressing the diverse needs of patients and caregivers.

[0070] The transfer system 100, through its connection with the mobility device 10, facilitates secure and stable transfers that are beneficially safer and less complicated for patients and caregivers over existing systems, particularly standalone systems. This minimizes strain on caregivers in lifting and transferring patients which minimizes caregiver injuries and burnout. Connecting the transfer system 100 to the mobility device 10 also minimizes demand for caregivers by reducing the amount systems to be independently managed by, for example, multiple caregivers. Where the user 12 has sufficient mobility, the connected transfer system 100 also promotes patient autonomy, independence by facilitating ambulation training and patient participation in their care and daily activities. This active engagement also improves user comfort, confidence, and dignity and further reduces or potentially eliminates caregiver demands in these instances. By reducing the strain and demand on caregivers the overall effectiveness of caregiving is improved, and accessibility is increased, for example, because of lower costs. The safety and low cost per smooth and controlled transfer also facilitates frequency in transfers which further promotes physical health (muscle strength, balance, and mobility), recovery times, overall well-being and health outcomes, lower stress and anxiety for patients, concerned parties, caregivers.

[0071] Additionally, the connection of the transfer system 100 reliably accommodates integration with a broad range of mobility aids 10, minimizing training and facilitating accessibility in healthcare. Coupled with the minimal form factor and weight enabled by leveraging the connection with the mobility device 10, the transfer system 100 is also beneficially compact and efficient accommodating use and storage across a range of care settings without the need to obtain separate systems for different mobility aids 10. The broad modularity and compatibility of the transfer system 100 also reduces the risk of improper deployment.

[0072] A transfer arm 180 when connected to the mobility device 10 is securely affixed to the mobility device 10 in a unified apparatus. Accordingly, the transfer apparatus 118 benefits from the weight and structure of the mobility device 10 to provide a stable transfer structure. This unification mitigates or avoids the heavy and bulky independent support structures of existing transfer systems such as tripods or dollies.

[0073] Furthermore, with the connection, the transfer apparatus 118 and mobility device 10 move together. This unified motion beneficially avoids the need for a caregiver to move the mobility device 10 when the transfer apparatus 118 is moved in ambulation.

[0074] Referring also to Figure 2, shown therein is a block diagram of connector 110, according to an embodiment.

[0075] The connector includes a mobility device connection assembly 212. The mobility device connection assembly 212 configured to secure the connector 110 to a corresponding post 14-n of the mobility device 10. The mobility connection assembly 212 is configured as a clamp. The clamp mobility device connection assembly 212 accommodates posts 14 of various cross-sectional shapes and dimensions (i.e. diameters or widths).

[0076] The connector 110 may include a mounting block assembly. The mobility device connection assembly 212 connects to the mounting block assembly 214. The interface of the mobility device connection assembly 212 and the mounting block assembly 214 is a fastened connection that restricts relative motion of the two components in all degrees of freedom. The resilient elastic deformability and ductility, also known as play or give, at the interface of the mobility device connection assembly 212 and the mounting block assembly 214 accommodates the cyclical loading (i.e. loading and unloading) of the connector 110. Where present, the accommodating connection of the mounting block assembly 214 to the mobility device connection assembly 212 beneficially extends the life of the connector 110 over, for example, a hard connection such as a weld which is prone to failure under such cyclical loading.

[0077] The connector 110 includes a transfer arm mount assembly 214. The mounting block assembly 214 or the mobility device connection assembly 212 further provides an interface with the transfer arm mount assembly 216. The interface is a pinand / or fastener interface which, when engaged, secures the mounting block assembly 214 or the mobility device connection assembly 212 to the transfer arm mount assembly 216 against movement in all degrees of freedom.

[0078] The transfer arm mount assembly 216 is securable to the corresponding transfer arm 180-n. The interface between the transfer arm mount assembly 216 and the transfer arm 180-n is by any known means sufficient to withstand the cyclical loading forces of transfer and ambulation.

[0079] Each transfer arm 180 may be provided with a means, such as the connection holes 484 of Figure 4, for the transfer arm mount assembly 216 to be secured at various locations disposed vertically along the transfer arm 180. The transfer arm mount assembly 216 may be similarly configured. The variability of these dispositions accommodates disposing the connector 110 a various heights on transfer arm 180. In an example, post 14 of one mobility device 10 has a clamping location 16-1 at a height of 28 cm and clamping location 16-2 at a height of 30 cm. The vertical variability of the connector 110 relative to the transfer arm 180 facilitates disposing the connector to accommodate the variability in these clamping locations 16 while maintaining the transfer arms 180-1 and 180-2 at the same height.

[0080] Referring to Figure 1A and also to Figure 3, shown in Figure 3 is a block diagram of a connector 310 according to an embodiment. Connector 310 is an embodiment of the connectors 110 of Figures 1A and 2.

[0081] The connector 310 includes a mobility device collar assembly 312. The mobility device collar assembly is an embodiment of the mobility device connection assembly 212 of Figure 2.

[0082] The mobility device collar assembly 312 includes a hinged collar 320. The hinged collar 320 is configured to receive and securely clamp a post 14. The hinged collar 320 is further configured to connect to mounting block assembly 314, further described below.

[0083] The hinged collar 320 includes a hinge piece 322 and a collar mounting piece 324 rotatably connected or hinged at a hinge connection 323. The hinge connectionmay be by any known means, such as a bolt. The rotational axis of the hinge connection 323 is disposed to one side of the hinged collar 320. This disposition of the hinge connection facilitates the transition of the hinged collar 220 between an open, closed, and locked configurations.

[0084] In the open configuration the hinged collar 320 the hinge piece 322 and the collar mounting piece 324 are rotated away from each other about the hinge connection 323 to accommodate a post 14.

[0085] In the closed configuration the hinge piece 322 and the collar mounting piece 324 are rotated toward each other about the hinge connection 323 to close on the post 14. In this configuration, the hinge piece 322 and mounting piece 324 engage each other at an end away from the hinge connection 323 and form a gap 325 between the hinge piece 322 and the mounting piece 324 for accommodating the post 14. The gap 325 is referred to herein as the post interface 325.

[0086] In some embodiments, the post interface 325 is provided with one or more inserts 326. To accommodate a range of post 14 configurations particularly at various clamping locations 16 while still achieving sufficient clamping pressure at the clamping interface in the locked configuration, the inserts supplement and adapt the post interface 326 to the post 14 configuration. Each insert 326 may be of various shapes and sizes according to various expected post 14 configurations.

[0087] In an example, in the closed configuration, the post interface 325 does not engage the post 14 or engages the post 14 an amount insufficient or at an angle inconsistent with achieving a desired clamping pressure when the hinged collar 320 is transitioned to the locked configuration. In a further example, the post interface 325 is circular and the post 14 cross section at the clamping location 16 is square. In either example, an insert 326 is provided to shim the post interface 325 to the desired opening shape, size or angle. Using inserts 326 beneficially extends the range posts that can be accommodated by the connector 310 while minimizing the extent of parts dedicated particular mobility devices 10. This beneficially minimizes the amount and extent of dedicated parts that must be obtained and stored to the easily stored and deployed low cost inserts.

[0088] Insert 326 may be pliable to accommodate a range of post 14 configurations or angles. Inserts 326 that accommodate a range of post 14 configurations beneficially reduces the amount of inserts 326 required to accommodate varying mobility devices 10. The pliability may also beneficially contribute to accommodating the cyclical nature of the loading at the connection point.

[0089] In the locked configuration, the hinged collar 320 is clamped to the post 14. In the locked configuration, connector 310 is secured to the post 14 by a clamping pressure between the post and the connector 310 at the post interface 325. The clamping is achieved by engaging the locking mechanism 330, further described below

[0090] The collar mounting piece 324 includes mount extension 327. The mount extension extends away from the post interface 325. Mount extension 327 provides an interface for the mounting block assembly 314, further described below.

[0091] The mobility device collar assembly 312 includes a locking mechanism 330. The locking mechanism 330, when engaged, transitions the hinged collar 320 from the closed configuration to the locked configuration. The locking mechanism 330 may be spring-loaded to beneficially provide rapid attachment and detachment of the connector 310 from the mobility device 10 of Figure 1A.

[0092] The locking mechanism 330 includes a clamping mechanism 332. The clamping mechanism 332 when transitioned from an open configuration to an engaged configuration further rotates the hinge piece 322 and mounting piece 324 together to shrink the post interface 325. Shrinking the post interface 325 provides the clamping pressure of the hinged collar 320 in the locked configuration.

[0093] In the engaged configuration the clamping mechanism 332 is secured against accidental opening, referred to herein as locked. It will be appreciated that the lock of the clamping mechanism 332 may not be absolute and may be overcome by directed or deliberate operation.

[0094] The locking mechanism 334 may include an adjustment mechanism 334. Adjusting the adjustment mechanism 334 adjusts the extent to which the clampingmechanism 332 shrinks the post interface 325. This adjustment beneficially contributes to accommodating posts 14 of various sizes and control of the clamping pressure.

[0095] Referring specifically to Figure 3, the connector 310 includes a mounting block assembly 314. The mounting block assembly 314 is an embodiment of the mounting block assembly 214 of Figure 2.

[0096] The mounting block assembly 314 includes a mounting block 340. The mounting block 340 is configured to interlock with the mounting extension 327 of the mobility device collar assembly 312.

[0097] The mounting block 340 is configured so that a cavity 342, referred to herein as collar cavity 342, is formed. The collar cavity 342 is shaped, such that the mounting extension 327 nests inside the collar cavity 342. Embodiments where the mount extension 327 and collar cavity 342 are reversed (i.e. the collar mounting piece 324 is configured as a cavity and the mounting block 340 is configured as an extension are expressly contemplated).

[0098] The mounting block assembly 314 is secured to the mobility device collar assembly 312 by one of more collar fasteners 344. The collar fasteners 344 secure the mounting block assembly 314 and the mobility device collar assembly 312 against substantial separation. It will be appreciated, however, that the fastened connection between the mobility device collar assembly 312 and the mounting block assembly 314 has sufficient give to beneficially accommodate the cyclical loading of the connection.

[0099] The connector 310 includes a transfer arm mount assembly 316. The transfer arm mount assembly 316 is an embodiment of the transfer arm mount assembly 216 of Figure 2.

[0100] The transfer arm mount assembly 316 includes a transfer arm mount body 360. The transfer arm mount body 360 provides a structure for connecting the mounting block assembly 314 and the transfer arm mount assembly 316. The transfer arm mount assembly 316 forms one side of a two sided connection between the transfer arm mount assembly 316 and a transfer arm 180 of Figure 1A.

[0101] The transfer arm mount body 360 includes a mount plate 362. Mount plate 362 is configured as a bracket plate for connecting to the mounting block 340.

[0102] The mount plate is securable to the mounting block by any number of arm mount fasteners 346. For example, the arm mount fasteners 346 may include vertical pins that restrict the movement of the transfer arm mount assembly 316 in all degrees of freedom other than vertically. The arm mount fasteners 346 may also include vertical threaded screws that restrict the movement of the transfer arm mount assembly 316 primarily in the vertical dimension.

[0103] The transfer arm mount body 360 includes a back plate 364. The back plate 364 is configured to receive the profile of a proximal post of the transfer arm 180 of Figure 1A such as the proximal post 582 of Figure 5A. Accordingly, the back plate 364 is configured to interface with and contribute to securing a transfer arm 180 of Figure 1A to the connector 310.

[0104] In some embodiments, the transfer arm mount body 360 is formed as a single piece. In some embodiments, the mount plate 362 is connected to the back plate 364 by a joint 366 such as a welded joint.

[0105] The transfer arm mount assembly 316 includes a front plate assembly 370. The front plate assembly 370 forms the remaining side of the connection between the transfer arm mount assembly 316 and a transfer arm 180 of Figure 1A.

[0106] The front plate assembly 370 includes a front plate 372. The front plate 372 is configured to receive the profile of the proximal post of the transfer arm 180 of Figure 1A such as the proximal post 582 of Figure 5A.

[0107] The front plate 372 is securable to the back plate 364 by at least one plate fastener 374. Where a transfer arm 18 of Figure 1A is disposed between the back plate 364 and front plate 372, securing the front plate 372 to the back plate 364 secures the transfer arm 18 to the connector 310.

[0108] Referring to Figure 4A and 4B, shown therein is an exploded view schematic of a right hand connector 410a and a left hand connector 410b, according to an embodiment. The connectors 410a, 410b are embodiments of connector 310 of Figure3. The connector 410a mirrors connector 410b for accommodating opposite sides of a mobility device 10 of Figure 1A. Connectors 410a and 410b are referred to collectively as connectors 410 and generically as connector 410. Components ###a and ###b of connectors 410 are similarly referred to herein collectively as components ### and generically as component ###. For example, transfer arm mount assembly 416a and 416b are referred to herein generically as transfer arm mount assembly 416 and generically as transfer arm mount assembly 416.

[0109] The connectors 410a and 410b include a mobility device collar assembly 412. The mobility device collar assembly 412 is an embodiment of mobility devices collar assembly 312 of Figure 3. It will be appreciated that the mobility device collar assembly 412 in use the be mobile device collar assembly 412 may be flipped when disposed in the left hand connector 410b relative to its disposition in the right hand connector 410a.

[0110] The mobility device collar assembly 412 includes a hinged collar 420. The hinged collar 420 is an embodiment of the hinged collar 320 of Figure 3.

[0111] The hinged collar 420 includes a collar hinge piece 422 rotatably connected at a hinge connection 423 to a collar mounting piece 424. The collar hinge piece 422, hinge connection 423 and collar mounting piece 424 are embodiments, respectively, of the collar hinge piece 322, hinge connection 323 and collar mounting piece 324 of Figure 3. The hinge connection 423 is located opposite the locking mechanism 430. The locking mechanism 430 is an embodiment of the locking mechanism 330 of Figure 3. The hinge connection 423 is formed by a bolt passing though the collar hinge piece 422 and the collar mounting piece 424 and secured at a tail end, for example by a clevis pin retaining ring.

[0112] The hinge collar 420 in the closed and locked (as shown) configurations form a post interface 425, similarly configured to the post interface 325 of Figure 3. The post interface 425 is provided with inserts 426-1 and 426-2, the inserts 426-1 and 426-2 are embodiments of insert 326 of Figure 3.

[0113] The mobility device collar assembly 412 includes a locking mechanism 430. The locking mechanism 430 is an embodiment of the locking mechanism 330 of Figure 3.

[0114] The locking mechanism 430 includes a clamping mechanism 432. The clamping mechanism 432 is an embodiment of the clamping mechanism 332 of Figure 3. The clamping mechanism 432 may be known as latch and release system 432. The clamping mechanism 432 provides quick connection and disconnection of the mobility device collar assembly 412.

[0115] The clamping mechanism 432 includes a clamping bolt 436. The clamping bolt 436 is rotatably connected to the collar mounting piece 424 at one end. The clamping bolt 436 is rotatable to open (i.e. swing open to an open configuration) to allow the hinge piece 422 to be opened and to avoid interfering with the provision of post 14 of Figure 1A to the post interface 425.

[0116] The clamping mechanism 432 includes a swing arm 438. The swing arm 438 is rotatably connected to the collar mounting piece 424 at one end. In some embodiments, the connection between the clamping bolt 436 and swing arm 438 to the collar mounting piece 424 is affected by the same connection. Rotating, also known as swinging, the swing arm 438 engages or disengages the locking mechanism 330. In an example, clamping bolt 436 is in the closed position and the swing arm 438 is sung from an open to an engaged position. This swinging of the swing arm pulls a head end of the clamping bolt 436 opposite the connected end down towards the mounting piece 424. As the head end moves downward, it engages with the hinge piece 422 to pull the hinge piece 422 and hinged collar 420 into the locked configuration. In the locked configuration, the swing arm 438 also lies substantially flat along the mounting piece 424 and the remainder of the connector 410. This beneficially disposes the swing arm 438 against accidental opening. When the swing arm 438 is rotated back to the open configuration, the head end of clamping bolt 436 moves back away from the mounting piece 424 to release the lock of the locking mechanism 430.

[0117] The clamping bolt 436 is adjustably connected at the head end to an adjustment knob 434. The adjustment knob 434 is an embodiment of the adjustment mechanism 334 of Figure 3. In some embodiments, the connection of the adjustment knob 434 to the clamping bolt 436 is a threaded connection. In these embodiments, rotating or screwing the adjustment knob 434 adjusts the adjustment knob 434 up or downthe clamping bolt 436. The adjustment knob 434 is the part of the locking mechanism 330 that engages the hinge piece 422. Adjusting the adjustment knob 434 adjusts the length of the clamping bolt 436 which corresponds to the extent of the closure of the hinge piece 422 on the mounting piece 424 in the locked configuration. Accordingly, adjusting the adjustment knob 434 can beneficially accommodate varying sizes of posts 14 of Figure 1 and adjust the clamping pressure of the hinged collar 420.

[0118] The mounting piece 424 includes an extended section 427 that extends away from the post interface 452. The extended section 427 is referred to herein as a mount extension 427 and is an embodiment of the mount extension 327.

[0119] The connectors 410 each include a mounting block assembly 414. The mounting block assembly 414 is an embodiment of the mounting block assembly 314 of Figure 3.

[0120] The mounting block assembly 414 includes a mounting block 440. Mounting block 440 is an embodiment of the mounting block 340 of Figure 3. The mounting block 440 is substantially a block or rectangular prism. The mounting blocks 440 formed by removing material from a single solid block are expressly contemplated. The mounting block assembly 414 may include a feature 443-1 or cutout 443-1, for example, to accommodate the swing arm 438 in the engaged position. In some embodiments, a cutout 443-2 is provided on the opposite side of the mounting block 440. A mounting block 440 with cutouts 443-1 and 443-2 disposed on both sides facilitates implementing the mobility device collar assembly 412 in both the right handed and left handed orientations.

[0121] The mounting block assembly 414 includes a collar cavity 442. The collar cavity 442 is an embodiment of the collar cavity 342 of Figure 3. The collar cavity 442 is substantially a relief of the mount extension 427. In some embodiments, the collar cavity 442 is configured to form a press fit with collar extension 427. In some embodiments, the collar cavity 442 is open on one or more sides.

[0122] In some embodiments, the collar cavity 442 is configured to provide clearance for facilitating connector 410 removal by separating the mobility device collar assembly 412 and the mounting block assembly 414 and allowing for some play inoperation. It will be appreciated that the clearance may be minimal to achieve preserve stability in operation.

[0123] The mounting block 440 is secured to the mobility device collar assembly 412 by collar screws 444-1 , 444-2, and 444-3. collar screws 444-1 , 444-2, and 444-3 are embodiments of the collar fastener 344 of Figure 3 and are referred to herein collectively as collar screws 444 and generically as collar screw 444. A threaded shaft (not shown) of each collar screw 444 is configured to pass through a corresponding horizontal hole in the mounting block and be screwed into the mount Extension 427. The holes in the mounting block 440 for the collar screws 444 are positioned to avoid intersection with mount pin holes 445-1 and 445-2, further described below.

[0124] The mounting block 414 includes mount pin holes 445-1 and 445-2. The mount pin holes 445-1 , 445-2. Each arm mount pin hole 445-1 , 445-2 is oriented vertically, and spaced and configured to receive mount pins 446a-1 and 446a-2 or446b-1 and 446b-2, further described below, respectively. The mount pin holes 445-1 , 445-2 are disposed to avoid intersection with the collar screws 444. In some embodiments, the mount pin holes 445-1, 445-2 pass completely through the mounting block 440. In some embodiments, the clearance of the mount pins 446-1 , 446-2, further described below, in the mount pin holes 445-1, 445-2 is minimal to, for example, facilitate stability of the connection while allowing for implementing the connection and / or some play in loading.

[0125] The mounting block 414 includes a threaded hole 445-3. The threaded hole 445-3 is configured and disposed to threadingly receive a mount screw 446-3, further described below.

[0126] The connectors 410a and 410b include a transfer arm mount assemblies 416a and 416b, respectively. Each transfer arm mount assembly 416 is an embodiment of the transfer arm mount assembly 316 of Figure 3.

[0127] Each transfer arm mount assembly 416a and 416b includes a transfer arm mount body 460a and 460b, respectively. The transfer arm mount bodies 460a, 460b are embodiments of the transfer arm mount body 360 of Figure 3.

[0128] Each transfer arm mount body 460a and 460b includes a mount plate 462a and 462b and a back plate 464a and 464b, respectively. Each mount plate 462a and 462b is connected to the corresponding back plate 464a and 464b, respectively by a welded joint 466a and 466b, respectively. Mount plates 462a and 462b, back plates 464a and 464b, and welded joints 466a and 466b are embodiments of mount plate 362, back plate 464, and welded joint 466, respectively.

[0129] The transfer arm mount bodies 460a and 460b are configured such that the welded joint 446b disposed on an opposing side of the mount plates 462b from the disposition of welded joint 466a on mount plate 462a and back plate 464b is rotated 180 degrees about an axis of the welded joint 466b form the orientation of back plate 464a about an axis of welded joint 466a. This disposition mirrors the transfer arm mount body 460a and 460b relative to each other. Accordingly, connectors 410a and 410b accommodate connections on right hand and left hand sides of the mobility device 10 of Figure 1A, respectively.

[0130] Each mount plate 462a and 462b is connectable to a mounting block 440 via mount pins 446a-1 , 446a-2 and 446b-1 , 446b-2, respectively. The mount pins 446a-1 , 446a-2 and 446b-1 , 446b-2 are embodiments of the arm mount fasteners 346 of Figure 3. Each mount pin 446a-1 , 446a-2 and 446b-1 , 446b-2 is configured to be affixed to the corresponding mount plate 462a, 462b by any know means such as hard connections including as welded connections, removable connections such as threaded connections, or being formed as a single contiguous piece.

[0131] Each mount plate 462a and 462b is further connectable to the corresponding mounting block 440 via a mount screw 446-3. The mount screw 446-3 is an embodiment of the arm mount fastener 346 of Figure 3. The mount screw 446-3 is configured to screw into the threaded hole 445-3 and resist vertical separation between the corresponding transfer arm mount assemblies 416a, 416b and the corresponding mounting block assembly 414.

[0132] When connected, the mount plate 462a or 462b at an under surface (not shown) is configured to interface with the corresponding mounting block 440 at an upper surface 447 such that the mount plate 462a, 462b lies flat on the upper surface 447. Thisconfiguration beneficially contributes to a stable connection as the surface interface supports the forces and moments from vertical loading of the transfer arm 180 of Figure 1.

[0133] Each transfer arm mount assembly 416a, 416b includes a front plate assembly 470. The front plate assembly 470 is an embodiment of the front plate assembly 370 of Figure 3. A front plate 472 of the front plate assembly 470 is removably fastenable to the corresponding back plate 464a, 464b by two front plate screws 474-1 , 474-2. Where a proximal post 582 of Figure 5A is disposed between the front plate 472 and corresponding back plate 464a, 464b fastening the plates 472 and 464a, 464b together secures the transfer arm 180 of Figure 1A in the transfer arm mount assembly 416.

[0134] Referring to Figures 5A and 5B shown therein is a block diagram and side view schematic of a transfer arm 580, according to an embodiment. Transfer arm 580 is an embodiment of transfer arm 180 of Figure 1A.

[0135] The transfer arm 580 includes a proximal post 582. The proximal post 582 provides an attachment structure for the transfer arm mount assembly 316 of figure 3. The proximal post 582 is configured to be disposed as a vertical post when connected to a mobility device 10 of Figure 1A.

[0136] The proximal post 582 may have one or more connector holes 583a through 583h. The connector holes 583a through 583h are referred to herein collectively as connector holes 583 and generically as connector hole 583. Each connector hole 583 passes through the proximal post 582 to accommodate, for example, plate fasteners 374 of Figure 3. The connector holes 583 may be disposed along the length of the proximal post 582 to accommodate connecting the connector 310 of Figure 3 at various heights along the proximal post 582.

[0137] The transfer arm 580 includes a handle section 584. The handle section 584 is joined at a proximal end to the proximal post 582 at a top end. The handle section 584 extends distally from the interface with the proximal post 582 to form a substantially horizontal handrail structure. The handle section 584 may be bent, for example at either end. The bending may, for example, provide structural integrity and / or ergonomic support. The handle section 584 provides a structure to support a user 12 of Figure 1A duringtransfer or ambulation. In some embodiments, the handle section is provided with hand grips that provide additional stability during transfers.

[0138] In some embodiments, the transfer arm 580 includes a distal post 586. The distal post 586 is joined at a top end to the handle section 584 at distal end. The distal post 586 extends downward from the distal end of the handle section 584. In some embodiments, the distal post 586 houses portions of a telescoping assembly 590, further described below.

[0139] In some embodiments, the distal post 586 is connected at a bottom end to a distal foot 589. The distal foot 589 is configured to interface with the ground to partially support the transfer arm 580 primarily against vertical loading.

[0140] In some embodiments, the distal foot is a wheel 589 (as shown in Figure 5B), roller, or caster. The wheel distal foot 589 accommodates horizontal motion of the transfer arm in ambulation training.

[0141] In some embodiments, the transfer arm 580 includes a bottom support 588. The bottom support 588 is joined to and connects the proximal post 582 to the distal post 586. The bottom support 588 provides additional structural integrity to the transfer arm 580.

[0142] The proximal post 582, handle section 584, distal post 586, and bottom support 588 may be formed any number of continuous pieces or may be joined together by any known means, such as a welded connection.

[0143] Referring also to Figure 5C, shown there is a side view schematic of a telescoping assembly 590, according to an embodiment. The telescoping assembly 590 provides a vertical adjustment means to facilitate the disposition of the distal foot 589 relative to the ground (i.e. in contact with or floating over). The telescoping assembly 590 is disposed or housed partially in the distal post 586 and is connected at the bottom end to the distal foot 589. Adjusting the telescoping assembly 590 extends or retracts the telescoping assembly 590 to dispose the distal foot closer or away from the ground, respectively.

[0144] In an embodiment, the telescoping assembly 590 includes a lead screw 594 threadingly coupled with a drop down leg 592. Rotating or screwing the lead screw drives the drop down leg 592 down or up to affect the extension or retraction of the telescoping assembly 590.

[0145] The telescoping assembly 590 may include a vertical adjuster 596. The vertical adjuster 596 is configured as a handle to facilitate hand adjustment of the telescoping assembly 590. In an example, the telescoping assembly is attached to the top end of the lead screw 594 such that rotating the vertical adjuster 596 rotates the lead screw 594 to extend of retract the telescoping assembly 590.

[0146] Referring to Figure 6, shown therein is a flow diagram of a method 600 of using a transfer system, according to an embodiment. Transfer system 100 of Figure 1A may be used to implement method 600.

[0147] At 602, the method includes connecting a mobility device collar assembly to a mobility device. The mobility device collar may be put in an open configuration for example by operating a locking mechanism into an open position and opening a collar of the mobility device collar assembly. The mobility device collar assembly in the open configuration is provided to a post of the mobility device at a clamping location. The mobility device collar assembly is closed about the post such that a post interface of the mobility device collar assembly engages with the post. In some embodiments, the post interface is provided with one or more inserts to accommodate the configuration and / or disposition of the mobility device post. The mobility device collar assembly may be further locked into place, for example by operating the locking mechanism in reverse of the opening operation. Locking the mobility device collar assembly provides a clamping pressure between the mobility device collar assembly and the mobility device to connect the mobility device collar assembly to the mobility device.

[0148] At 604, the method includes connecting a transfer arm mount assembly to a transfer arm. In an example, this connection includes disposing the transfer arm between a front plate and a back plate of the transfer arm mount assembly and fastening the front plate and back plate together about the transfer arm. The connection is such that the transfer arm extends out from mobility device when the transfer arm and mobilityare connected via the mobility device collar assembly and the transfer arm mount assembly. The location of the connection on the transfer arm may be adjusted based on the selected mobility device clamping location.

[0149] At 606, the method may include connecting the mobility device collar assembly to the transfer arm mount assembly. The connection may be, for example, as described at one or more of at 706 and 708 of Figure 7 below.

[0150] At 608, the method may include adjusting a telescoping assembly of a transfer arm. The telescoping assembly is adjusted to telescope a distal foot of the transfer arm towards or away from the ground. Adjusting the telescoping assembly beneficially facilitates various vertical dispositions of the transfer arm relative to the ground.

[0151] At 610, the method includes performing one or more of ambulation or a transfer. It will be appreciated that at 602 through 608 may be repeated for at least a second transfer arm with the same mobility device prior to the performance of at 610, for added support. In ambulation, transfer arm acts as a rollator and attached the mobility device beneficially follows the transfer arm and user without being moved, for example by an additional caregiver. Furthermore, as the disposition of the transfer arm relative to the mobility device is static the is a consistency in the distance that can beneficially be relied upon by the user in both ambulation and transfer should the user return to the mobility device, for example, due to fatigue or potential fall.

[0152] At 612, the method includes determining if the use of the transfer system is completed. If not, at 610 is repeated. If yes, the method continues to at 614.

[0153] At 614, the method includes disconnecting the mobility device collar assembly from the mobility device. At 614 may be the reverse at 602.

[0154] At 612, the method includes determining if the transfer system is to be deployed with a second mobility device. If yes, at 602 through 612 is repeated for the second mobility device. In no, the method continues to at 610.

[0155] At 610, the transfer arm is stored in any suitable storage. The small profile and weight of the transfer arm beneficially accommodates efficient and flexible storage.

[0156] Referring to Figure 7, shown therein is a method 700 of manufacturing a transfer system connector, according to an embodiment. Transfer system connector 210 of Figure 2 may be manufactured by method 700.

[0157] At 702, method 700 includes assembling a mobility device collar assembly. Assembling the mobility device collar assembly includes connecting a first collar piece to a mounting piece. In embodiments where the collar is a hinged collar, the first piece is a hinge piece and connecting the hinge piece to the mounting piece is by a hinged connection such as a bolted connection.

[0158] Assembling the mobility device collar assembly further includes attaching a locking mechanism to the collar. Where the locking mechanism is a bolt and swing arm mechanism, attaching the locking mechanism may include attaching the bolt and swing arm at a pivot point with a clevis pin and securing the pin with a retaining clip.

[0159] At 704, the method 700 may include forming a collar cavity in a mounting block. Forming the collar cavity may be by removing material form a solid block by any known means such as milling.

[0160] At 706, the method 700 may include fastening the mounting block to the mobility device collar assembly. In an example, a mount extension of the mobility device collar assembly is fitted into a collar cavity of the mounting block assembly. Threaded shafts of each of three screws are provided through horizontal holes in the mounting block and screwed into threaded holes in the mobility device collar assembly. This connection secures the mounting block to the mobility device collar assembly in a manner constrained against movement in all degrees of freedom while maintaining some degree of play.

[0161] At 708, the method includes connecting the transfer arm mount body to the mobility device collar assembly. The connection may be via the mounting block.

[0162] In an example connecting the transfer arm mount body to the mobility device collar includes securing two mounting pins to the transfer arm mount body by any known means, such that they extend downward from a mounting plate. At 708 further includes disposing the pins in mounting pin holes in of the mounting block to constrainrelative movement or separation in all but the vertical direction. At 708 may further include securing the transfer arm mount body from separation by screwing the transfer arm mount body into the mounting block with a screw fastener oriented vertically.

[0163] At 710, the method may include fastening a front plate assembly to the transfer arm mount body. In an example, the front plate assembly is fastened to the transfer arm mount body by screwing two screws through the front plate assembly and into a back plate of the transfer arm mount body.

[0164] While the above description provides examples of one or more apparatus, methods, or systems, it will be appreciated that other apparatus, methods, or systems may be within the scope of the claims as interpreted by one of skill in the art.

Claims

Claims:

1. A transfer system connector for connecting a transfer arm to a mobility device, the connector comprising:a mobility device connection assembly configured to removably connect to a mobility device post of the mobility device at a clamping location the connection constrained in all degrees of freedom, the mobility device connection assembly comprising:a collar configured receive the mobility device post and to clamp the mobility device collar assembly to the mobility device post at a post interface of the collar, the collar comprising a mounting piece with a mount extension extending therefrom, the mount extension configured to connect to a transfer arm mount assembly; anda locking mechanism configured to transition the collar from an open configuration to receive the post to a locked configuration to affect a clamping pressure between the mobility device post and the collar; anda transfer arm mount assembly comprising at least one arm mount fastener configured to connect transfer arm mount assembly to the mobility device collar assembly and at least one plate fastener configured to connect to the transfer arm to the transfer arm mount assembly for connecting the transfer arm to the mobility device,wherein, when the transfer arm is connected to the mobility device by the connector, the transfer arm is at least partially supported by the mobility device when loaded, is disposed a fixed distance from the mobility device and at a predetermined height, extends out from the mobility device away from an initial position of the user, and provides a support structure for transfer and ambulation.

2. The connector of claim 1, wherein the connection of the mobility device collar assembly to the transfer arm mount assembly is by a mounting block disposed therebetween and fastened to each of the mobility device collar assembly and the transfer arm mount assembly by fasteners, the fastened connection constraining with play the mobility device collar assembly to the transfer arm mount assembly in all directions.

3. The connector of claim 1 , wherein the mobility device collar assembly comprises a hinge piece, rotatably connected to the mounting piece via a hinge connection, the hinge connection disposed offset from the collar interface, wherein rotating the hinge piece about the hinge connection transitions the mobility device collar assembly from the open to a closed configuration about the mobility device post.

4. The connector of claim 1 , wherein the transfer arm mount assembly comprises a font plate and back plate, the front plate and back plate each configured in a profile conforming to a transfer arm post of the transfer arm wherein when the transfer arm post is disposed between the back plate and front plate fastened together by the at least one plate fastener, the front plate and back plate is configured to constrain the orientation of the transfer arm post parallel to the mobility device post.

5. The connector of claim 1 , wherein the transfer arm mount assembly comprises a mount plate, configured to be fastened to the mount extension the mount plate comprising an under surface configured to be disposed parallel to an upper surface of the mount extension when the transfer arm mount assembly is fastened to the mobility device collar assembly.

6. The connector of claim 1 , wherein the at least one arm mount fastener comprise at least one vertical pin extending vertically from the transfer arm mount assembly and at least one vertical screw configured to threadingly fasten the transfer arm mount assembly to the mobility device collar assembly, wherein the at least one vertical pin constrains the disposition of the transfer arm mount assembly relative the mobility device collar assembly against rotation and horizontal separation andthe at least one vertical screw constrains the disposition of the transfer arm mount assembly relative the mobility device collar assembly against vertical separation.

7. A method of using a transfer system comprising:removably clamping a first connector to a first mobility device at first clamping location of a first mobility device first post of the first mobility device wherein the first mobility device first post at the first clamping location is a post oriented substantially vertically; andremovably connecting a first transfer arm to the first connector to connect the first transfer arm to the first mobility device, wherein when the first transfer arm is connected to the first mobility device by the first connector the first transfer arm is disposed a fixed distance from the first mobility device and at a predetermined height, extends out from the first mobility device away from an initial position of a user, and provides a support structure for transfer and ambulation via the connection, wherein the connection via the first connector is configured to support, at least in part, loading of the first transfer arm in transfer or ambulation, for passing, at least in part, the resulting loading of the first connector to the mobility device.

8. The method of claim 7 comprising transferring the user from the first mobility device the transfer comprising:shifting the user from the mobility device to be supported, at least in part by the transfer system;supporting the user by the transfer system; andshifting the user from being supported by the first transfer arm to being supported by a secondary structure independent of the transfer system.

9. The method of claim 7 comprising pulling, by the user, the first transfer arm from a first location to a second location wherein the first mobility device is pulled via, the connection to the transfer system, from the first location to a second location at a fixed separation from the transfer system.

10. The method of claim 7 comprising:removably clamping a second connector to the first mobility device at a second clamping location of a first mobility device second post of the first mobility device wherein the first mobility device second post at the second clamping location is a post oriented substantially vertically; andremovably connecting a second transfer arm to the second connector to connect second transfer arm to the first mobility device, wherein when the second transfer arm is connected to the first mobility device by the second connector the second transfer arm is disposed a fixed distance from the first mobility device and at a predetermined height, extends out from the first mobility device away from the initial position of the user, and provides a support structure for transfer and ambulation via the connection, the connection via the second connector configured to support, at least in part, loading of the second transfer arm in transfer or ambulation, for passing, at least in part, the resulting loading of the second connector to the mobility device.

11. The method of claim 10, wherein the first clamping location is at a first clamp height and the second clamping location is at a second clamp height and the first clamp height and second clamp height are different heights.

12. The method of claim 11 , wherein removably connecting the first connector to the first transfer arm is at a first proximal post height along a first proximal post of the first transfer arm and removably connecting the second connector to the second transfer arm is at a second proximal post height along a second proximal post of the second transfer arm and wherein the first proximal post height is disposed adifferent distance along the first proximal post from a first handle section of the first transfer arm than the distance of the second proximal post height from the second handle section along the second proximal post and wherein the first proximal post height is offset from the second proximal post height based on difference in heights of first clamp height and the second clamp height.

13. The method of claim 7 comprising disconnecting the first connector from the mobility device for separating the first transfer arm from the mobility device.

14. The method of claim 13 comprising clamping the first connector to a second mobility device first post of a second mobility device.

15. A method of manufacturing a transfer system connector for connecting a transfer arm to a mobility device, the method comprising:assembling a mobility device connection assembly, the mobility device connection assembly configured to removably connect to a mobility device post of the mobility device at a clamping location the connection constrained in all degrees of freedom, assembling the mobility device connection assembly comprising connecting:a collar configured receive the mobility device post and to clamp the mobility device collar assembly to the mobility device post at a post interface of the collar, the collar comprising a mounting piece with a mount extension extending therefrom, the mount extension configured to connect to a transfer arm mount assembly; anda locking mechanism configured to transition the collar from an open configuration to receive the post to a locked configuration to affect a clamping pressure between the mobility device post and the collar; andconnecting a transfer arm mount assembly to the mobility device connection assembly by at least one arm mount fastener,wherein when the transfer arm is connected to the mobility device by the connector via at least one plate fastener configured to connect to the transfer arm to the transfer arm mount assembly, the transfer arm is at least partially supported by the mobility device when loaded, is disposed a fixed distance from the mobility device and at a predetermined height, extends out from the mobility device away from an initial position of the user, and provides a support structure for transfer and ambulation.

16. The method of claim 15, wherein connecting the mobility device collar assembly to the transfer arm mount assembly comprises:disposing a mounting block disposed between the mobility device collar assembly and the transfer arm mount assembly;fastening the mounting block to each of the mobility device collar assembly and the transfer arm mount assembly by fasteners,wherein the fastened connection constrains with play the mobility device collar assembly to the transfer arm mount assembly in all directions.

17. The method of claim 15, wherein assembling the mobility device connection assembly comprises rotatably connecting a hinge piece to the mounting piece via a hinge connection, the hinge connection disposed offset from the collar interface, wherein rotating the hinge piece about the hinge connection transitions the mobility device collar assembly form the open to a closed configuration about the mobility device post.

18. The method of claim 15, wherein the locking mechanism is configured as a quick release mechanism, the quick release mechanism comprising a swing arm and a bolt, the swing arm when swung transitions the locking mechanism from an open configuration to an engaged configuration and pulls a distal end of the bolt towards the mounting piece for locking the mobility device collar assembly.

19. The method of claim 15, wherein the transfer arm mount assembly comprises a mount plate, configured to be fastened to the mount extension the mount plate comprising an under surface configured to be disposed parallel to an upper surface of the mount extension when the transfer arm mount assembly is fastened to the mobility device collar assembly.

20. The method of claim 15, wherein the at least one arm mount fasteners comprise at least one vertical pin extending vertically from the transfer arm mount assembly and at least one vertical screw configured to threadingly fasten the transfer arm mount assembly to the mobility device collar assembly, wherein the at least one vertical pin constrains the disposition of the transfer arm mount assembly relative the mobility device collar assembly against rotation and horizontal separation and the at least one vertical screw constrains the disposition of the transfer arm mount assembly relative the mobility device collar assembly against vertical separation.

Images