Nana's Knife - Two Finger Cut

Nana's Knife - Two Finger Cut - open-source assistive technology prototype by the Abraham Accords Open Innovation Challenge community

About this project

Our device allows the user to cut a salad with just two fingers.

The armpit and hand area will be static, but the palm and

fingers will be dynamic. The device only connects to two

fingers with a cutting knife in between.

The challenge

Nana’s Knife - Two Finger Cut was developed during the 2022 Abraham Accords Open Innovation Challenge.

It was designed with and for Nana Mel, a breast cancer fighter. This solution enables Nana, fellow breast cancer survivors, and others with limited shoulder-through-palm mobility limitations to painlessly cut with ease.

You can learn more about the Abraham Accords Open Innovation Challenge and browse the projects on the AAOIC community page.

Nana’s Knife was developed by:

Sabina Mamedov

Who it helps

Our Need-Knower is Nana Mel, a 52-year-old breast cancer fighter. Since her surgery, during which surgeons removed samples from her breast and armpit area, Nana has experienced pain in her hand when cutting with a knife.

How it works

What

Nana’s Knife - the Two Finger Cut tool is designed to help users with limited shoulder-through-palm mobility to cut with a knife with ease.

Why

Many breast cancer patients undergo similar surgical procedures to Nana, as well as additional treatments such as chemotherapy and radiation, and as a result, struggle with a similar type of pain when using knives. This project aims to ease patients’ healing period and make everyday actions feel as normal as possible.

Who

How

This solution secures a knife blade between two fingers to enable users to cut while keeping their shoulder static and wrist/hand muscles relaxed (no gripping required).

Tools Needed

3D printer

Hot Glue Gun

Tin snips (tool that can cut metal)

Bill of Materials

Please see detailed BOM and printing models in the downloadable product file.

Estimated Time to Make

1 hour of print time

0.3 hours of assembly time

Project details

The build files for Nana's Knife - Two Finger Cut are free to download from this page - open source, shared by TOM: Tikkun Olam Makers.

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