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Zweit­helfer

AR glasses and a redesigned first aid kit that guide anyone through first aid until professionals arrive.

An orange first aid kit labelled Erste Hilfe, with a green sticker reading mit Helferbrille. In front of it lie black-framed safety glasses with a small camera above the nose bridge.

Project

Fictional future project

Team

Lea Dannenhauer with Hannah Moser, Moritz Nussbaumer and Moritz Schneidawind

My part

Ideation, concept, research, visual design, 3D modelling, product design, photography

When

October 2023 – July 2024

Watch the film

Zweithelfer helps people give first aid with confidence. It pairs AR glasses with a redesigned first aid kit. The glasses connect the helper to emergency services, recognise injuries and guide them step by step until professionals arrive.

Problem

Studies show that 5–10% of deaths could be prevented if first aid were given in time. Yet more than half of all adults took their last first aid course over ten years ago. In an emergency, many don’t know what to do, or they’re afraid of doing something wrong. They need support that makes helping easier.

Research and ideation

We looked for emerging technologies first and asked what they could change. AR glasses showed the most potential for first aid: untrained people could help effectively, without the fear of making mistakes.

Scenario

Zweithelfer sits in cars and public spaces. Every first aid kit contains AR glasses and newly designed, clearly labelled supplies. Further ahead, Zweithelfer could run as an app on everyday AR glasses. The kit becomes an add-on, and no separate glasses are needed.

Pencil sketch: an open first aid kit stands on the ground next to a person lying on their back. In the lid of the kit sit the AR glasses and a small device above them; the base holds the supplies.

How it works

Connect. After securing the scene, the helper opens the kit and puts on the glasses. An emergency call goes out automatically, and the location is sent to the nearest control centre.

Assess. The helper describes the situation and answers the dispatcher’s questions. An AI assistant listens in and analyses the injuries through the glasses’ cameras. When the call is handed over, it already knows which measures are needed.

Guide. A friendly but authoritative voice leads the helper through each step, with sounds and AR visuals placed exactly where they’re needed. If a step isn’t done, the instruction repeats until it is.

Hand back. Once everything is done, the helper is reconnected with the dispatcher until the ambulance arrives.

Product design

We didn’t just add glasses to an existing kit. We rethought the whole kit. A standard kit is full of similar-looking packages with small labels and no guidance on what to use when. We redesigned a DIN-standardised kit to hold the glasses and gave its contents colour-coded, numbered sections. The assistant can say “pink 3”, and there’s no room for misunderstanding.

Six packets from the kit on a grey surface: a triangular bandage, dressing packs and elastic bandages, each with a coloured label, a large number and its DIN standard.
Colour and number come first. Name and DIN standard stay readable, but smaller.
The helper glasses on their own: a clear visor in a black frame, with a small camera above the nose bridge.
Simple but technical and durable, with the safety-glasses look of emergency equipment.

Film

The video loads from YouTube once you press play. Watch on YouTube

Outlook

Zweithelfer shows how AR could change first aid, but it can’t be built today. It would need fast, nationwide internet, more efficient chips, better batteries and lower costs. Even so, it gives a clear picture of where life-saving technology could go.

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