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Chapter III:

Power wheelchair bases

When selecting your first power chair, chances are that you will be overwhelmed with the selection and the features. You may feel like making a quick selection since you have so many other medical issues to worry about. The decision, however, is very important since this chair will be your child’s vehicle and mobility for many hours every day for several years. There is NO perfect power wheelchair. Every type will have its tradeoffs – you need to match the technology to your lifestyle and preferences as well as your child’s medical needs. Here are certain features to consider and compare:

Drive configuration – location of the larger drive wheels on the base of the wheelchair

•Front wheel drive

Large front drive wheels pull the weight instead of pushing it. This allows for improved curb and obstacle climbing capabilities, better handling in soft terrain such as grass and gravel. It also provides very intuitive and tight maneuvering (i.e. turning into a doorway from the hall). Since there are no

front casters spinning, you can pull in the footplates closer to the body, while still maintaining a lower seat to floor height.

Disadvantage of the front wheel drive system is the potential for fishtailing – If you go higher speeds the rear of the chair may “wiggle” around. This issue has been resolved on some models but not all. The client also needs to get used to having a lot of the wheelchair behind her, so she needs to be cautious when turning in tight spaces.

•Mid wheel drive

Mid wheel drive wheelchairs have the tightest turning radius. While turning radius does not always equal maneuverability, it is a very beneficial feature for indoor use. It is also intuitive to drive since the drive wheels tend to be right underneath the user.

Major disadvantage is a tendency to “highcenter” – this means that with 6 wheels on the ground, the drive wheels can get stuck in the air when initiating a ramp or other obstacle. More and more mid wheel drive configurations offer different tracking and curb assist capabilities – while it is still not the best configuration for outdoors use, the performance constantly improves.

•Rear wheel drive

Rear wheel drive wheelchairs used to offer the best tracking – that is, they were able to go straight without a tendency to veer off to the side. With new gyroscopic and alike technologies, both mid and front wheel drive configurations are getting better tracking now. Due to the inherent tracking

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Sunrise Medical SMA manual Chapter Power wheelchair bases, Front wheel drive, Mid wheel drive, Rear wheel drive
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SMA specifications

Sunrise Medical SMA, known for its commitment to innovation and quality in mobility solutions, offers a range of products designed to enhance the lives of individuals with varying mobility needs. The company has established itself as a leader in the industry by focusing on advanced technologies and user-centered design.

One of the standout features of Sunrise Medical's SMA lineup is its modular design, allowing for customization to suit individual preferences and requirements. The modular approach not only ensures easy adjustments but also allows users to modify their mobility devices as their needs change over time. This adaptability is particularly beneficial for individuals with progressive conditions.

Another key characteristic of Sunrise Medical SMA products is their impressive range of motion and maneuverability. Many models come equipped with advanced suspension systems that provide a smooth ride, whether navigating indoor environments or tackling outdoor terrains. This feature enhances the overall user experience, ensuring comfort and stability in various settings.

Additionally, the integration of smart technologies is a hallmark of Sunrise Medical's offerings. Many devices are equipped with intelligent control systems, enabling users to operate their mobility aids with ease. These systems often feature programmable settings that can be tailored to individual preferences, enhancing overall accessibility and ease of use.

Safety is a top priority for Sunrise Medical. Their products often include advanced braking systems, anti-tip features, and ergonomic seating solutions designed to ensure the stability and security of the user. These safety measures give caregivers and users alike peace of mind while promoting independence.

In terms of design, Sunrise Medical focuses on aesthetics as well as function. Their mobility devices are available in a variety of colors and finishes, ensuring that users can express their individuality while utilizing tools that enhance their mobility.

Lastly, Sunrise Medical provides extensive support and resources for users, including training programs and user guides, to ensure that they can fully utilize the features of their mobility devices. This commitment to customer service further solidifies their reputation as a trusted name in mobility solutions.

In summary, Sunrise Medical SMA stands out for its modular design, advanced suspension systems, smart technologies, safety features, aesthetic options, and customer support. These characteristics make its products not only functional but also tailored to meet the diverse needs of users, ultimately improving their quality of life.
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