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Portable Ascending Device path to market

Executive Summary

When people with motor disabilities fall from their wheelchair they go through a lot of trouble to get back on it. This device attaches to a wheelchair and is used by the person to climb back on the wheelchair without assistance. This open source device can also be used for other purposes. 

Highlights and key figures

Total investment into this project (live figure)

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Costs and funding (live figure)
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Market development
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The Project



Started by Danielle and Sonja in 2013, concretized in February 18th. Tibi and Serge joined the project in Mars 2014. 

Presentation of the product and example applications

Enter 3D model and explanation [Serge]

Immediate application

Help individuals with motor disabilities to get on their wheelchair.  

The services provided by SENSORICA through its members

Mechanical design and prototyping. 
Prototyping is done using Serge's (GRE3EN) large volume 3D printer

Affiliates actively contributing to this project

Active affiliates

Member name Description of role(s)
Danielle  Help with product design, early tester, outreach, connection with the local and global MS community
Sonja Product design, facilitation and project coordination
Tibi Facilitation and project coordination, outreach
Serge 3D design and prototyping
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Close collaborators

create spreadsheet

SWOT analysis


Timetable of activities and SMART objectives


Advantages of the product

  • Clinical Need— Improves the results of patient care and/or the delivery of patient care

  • Usability— Easy to understand and intuitive to use, comfortable to the senses. It does the job precisely, accurately, reliably, and safely. While fitting individual needs, product should work for most people with similar needs

  • Robustness— It will continue to work and provide the needed functionality when subjected to the rigors of daily use and abuse, including impact, submersion, misuse, or overload; withstand anything a child could imagine to do.

  • Adaptability— Portable, unobtrusive, and will it operate effectively for mixed conditions and environments. It is compatible with other devices.

  • Low Cost— Covered by insurance. Is it affordable for the end user. 

  • Patient benefits Faster healing, less pain, better results.



Market Study


Industry Analysis


Key success factors

Open source, supported by a large community, ecological/sustainable,  

Factors affecting demand

Modular, interoperable, low cost. 

Trends and market developments


Market analysis

First market segment

Who are the clients?

Individuals with mobility problems, in a wheelchair.

Buying behavior

[for Danielle to complete]

How many are they?


What is the value of the potential market?


Sales potential for this market


Details on first customers/testers

[for Danielle to complete]

Other potential clients

[for Danielle to complete]


Add new features and modules to the device. Evolve it into a better and open source wheelchair that addresses these problems. 

Analysis of the competition

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Similar to Option 1 (Bathemaster/Bathlift)

  • Product: Bathmaster Sonaris Bath Lift,and others here), also sold on internet here and here

  • Manufacturer: Patterson Medica - see below under ‘Patent’

  • Height 7.6 cm to 45.7 cm

  • Weight 11.8 kg

  • Rotation seat optional

  • Pro: Portable

  • Con: Price is too high (starts at$499 to $2995); Suction cups are difficult to release afterwards

See video  description on how it is put together

Discussion on Bathmaster/Bathlift

  • Pros: suction cups (makes it stable); battery (when on the ground, stength is not a fortess, battery would take some load off; alternatively, a lifting mechanism that does not require much physical strength), wings on the side of the seat

  • Cons: suction cups (suction cups may not work on all surfaces, e.g. when floor not even); so it’s not adaptable to other surfaces from bathtub; too expensive; does come high enough (her wheelchair is 62 cm and the chair raised is 45.7 cm, so the height to overcome is 16.3 cm → the height that would be the max. to overcome for D would be as little as possible - if possible no more than 7-10 cm difference, so height raised = 52-55 cm; the lowest of the Bath chair is 7.5 cm, this is possible once in sitting position); no handle bars on side (one or two handle bars)

Potential differences of our product with the Bathlift

  • Our device: different attachment to floor than suction cups to make it usable on different floor types [Bathlift: suction cups]

  • Our device: seat height, raised 52-55 cm to enable transfer into wheelchair of 62 cm height [Bathlift: max. 45.7cm]

  • Our device: additional removable handle bars on side of seat to allow better mobility/stability when transferring back into wheelchair [Bathlift: no handle bars]

  • Our product: less expensive [Bathlift: $499-2999]

  • Our device: no need for waterproofing/water-compatibility [Bathlift: made for being in water]

  • Our device: more compact (e.g. smaller seat and backrest) [Bathlift: made for staying seated in it, large seat and backrest]

  • TBD: Our device: (optional) lighter & possibility to store in space under wheelchair in front of the ‘cross’ that stabilizes chair) -this is not the priority; may make design and usage too complicated? To be determined (TBD)

  • Our product: modular and customizable/adaptable to different individuals

Characteristics of the direct competition

  Competitor 1 Competitor 2 Competitor 3 Competitor 4
quality of products  

quality of services  

product line  




marketing tactics  

main strength 

main weakness   

Conclusion - Impact on SENSORICA


Outreach/marketing plan

Budget for sales and marketing