Frame

Frame variations.
Screws could secure the tubing to the frame, this would make dis assembly passable.
I flat back would be needed for the bump bracket.

Tubing tidy

There will be a lot of excess tubing in between the feed bag and the pump. Some way of keeping it out of the way would be use full.

Frame

Frame made from two components. The two pieces of the frame could be mounted at varying heights depending on the length of the tube joining them. This would mean that a small and a large frame could be made from the same mould.
Smaller parts would also reduce moulding costs

Pump Adjustability

More exploration of pump adjust ability. A swivel securing would mean the pump could be mounted at almost any height.

Frame

A more aesthetically pleasing light weight frame. This would also be more suited to rotational moulding than a boxy design with a lot of flat surfaces.

frame

The frame must hold the feed and the pump. Perhaps it could be light weighted by removing the material behind the feed and the pump.

Stand

Exploring forms for the frame. It must be self supporting

Bracket Adjustability

Adjustability would be increased if the ridges on the frame were changed. Three rails would be good, but a series of small ridges would offer much greater adjustability, meaning a wider range of pumps could be used.

Bracket

Adjustable pump bracket. Extends sideways and has multiple holes to fit a variety of pumps.
Locking mechanism exploration.

Transport

Methods of attachment to wheel chair handles.

Tubing Safety

A method of securing excess tubing in between

feeds. Possible clip system.

Foam

I foam inner would be a good solution to cater for various pumps. The pump section could be swapped out if a new pump was bought.

Dropper Set

On some tubeing (particularly the infinity) the dropper set i exposed. The set needs protection from damage causing splits, or kinks in the tubeing.

Feed Holder

There are a lot of different types of feed on the market. An adjustable holder would cater for a variety of these.

Handles

A handle could easily be moulded into the frame. It would be handy for transporting the frame while it wasnt in the pack.

Frame

The steel frames used in other packs seem less than ideal. They have issues with rust, and damaging the pack.
The kangaroo injection moulded frame is a much better solution. But injection moulding is quite expensive.
A rotationally moulded frame would be a good solution, cost, and materials wise. I'm going to look into rotational moulding design and manufacture.

Tubeing

Storage for tubeing while not in use.

Rubber Tube Guides

Rubber sheaths would make good tube guides. They could be easily produced, and would be flexible enough to fit the shape of the pack or frame. They would also be easy to secure using fasteners, or even sewing.

Tube Guides

Concepts for securing, protecting, and guiding the tubes.

Excess tubeing

Some sort of storage for tubeing would be good. Excess tubeing, or when it wasn't in use.

Tube Openings

Different ideas for openings.

Tube Access

Getting the tubeing out of the bag seems to be an area of difficulty. Here are some general measurements for how big the opening would need to be.

Pump Access

Actual access to the pump without opening the entire bag might be good. It would have to have a better seal than the protective cover so that it could keep out dirt and protect the pump. A zipper might be a good solution.

Control Openings

The pump need to be protected, a solid cover over the clear plastic would be good. The cover needs to be quick release. Velcro would be a good way to get fast access to the controls, of perhaps tabs.

Display/Control Access

Being able to see the LCD display of the pump is important. Feed rates, remaining feed time, and error messages need to be read.
This information should be easily accessible, the entire bag shouldn't need to be unzipped just to view it. The controls also need to be accessed without removing the entire unit.

The Kangaroo pack has clear panels on the front for viewing and accessing the controls. These don't line up with the newer pumps that some of the parents I interviewed were using. I'll be looking into various pumps control, and LCD areas.

Visual Feedback

Visual feedback is an important part of any design. It helps people to know what is happening and feel a connection with it.
One thing that seems to be missing form most backpack designs is a visible feed level. Some sort of feedback on how full the bag/bottle was would be helpful. I've been experimenting with different methods and shapes. Here are a couple of concepts.

Design Opportunities

These are some opportunities that I have pinpointed for possible areas of focus. These are good starting points that I will use to research and concept further.

Existing Features

Not everything needs to be redesigned. The existing products have some important features that need to be kept.
This displays a few of the existing features that need to follow through into my design. There may be room for improvement in them.

Entry Points

These are some entry points for my design project. A list of possable areas to focus on grouped by subject

Existing Problems

Using the information gained from my interviews I have created a chart of existing problems with the current system.
From here I will go on to analyse the information and find some design opportunities.

Usability vs Price

Usabilty in realtion to price has a much clearer corrolation. The more expersive the pack, the better you would expect it to be designed.
There is room for a well designed but more affordable backpack.

Aesthetics vs Functionality

This graph shows backpacks in relation to their aesthetics qualities and functionality. As you can see there is a gap for high functionality high aesthetic backpacks.
Even though the kangaroo backpack is the most functional there is still a lot of room for improvement.