Alert
Call 911 immediately and ask those nearby for help.
Medical Chrono
Power-free bleeding-control time indicator · TimeAid Marker
Medical Chrono
ROKAF Startup Competition Winner · Competing in the Defense Startup Contest
Bleeding is the
#1 preventable cause of death.
In critical moments, time saves lives.
응급의 순간, 시간은 생명입니다.
We restore the time information missing from bleeding control - so more lives and limbs can be saved, and public emergency care can move forward.
From the moment a tourniquet goes on, time decides survival. Medical Chrono builds TimeAid TQ, which shows elapsed time through color and touch - with no power at all.
Why Bleeding Control
Bleeding is the fastest - and most preventable - death.
#1
Leading cause of preventable death after injury
Core premise of the American College of Surgeons (ACS) - hemorrhage
80%
Share of OR deaths within 24h of trauma due to severe blood loss
stopthebleed.org
Minutes
How fast severe bleeding can become fatal
Bystander action before EMS arrives decides survival
~30,000
Estimated preventable U.S. trauma deaths in 2014
National Academies, 2016
How to Control Bleeding
Anyone can control bleeding - immediately.
Millions of people worldwide trained through STOP THE BLEED® follow one simple idea - Alert, find the Bleeding, and Compress. The tourniquet is the key tool of that final step.
Bleeding
Quickly find the life-threatening source of bleeding.
Compress
Stop it with direct pressure, hemostatic gauze, and a tourniquet.
The Missing Link
It can be reversed - but only when you know the elapsed time.
TCCC and DD Form 1380 require recording tourniquet application time - the premise for reassessment. Around two hours, conversion should be considered; beyond about six hours, release can be fatal and immediate evacuation is the priority. Yet in darkness, with gloves, under fire, that record is lost while evacuation stretches to 6-7 hours. Without time, the right next step cannot be chosen.
7.1 hrs
Average tourniquet application time
Measured at a Ukrainian forward surgical facility (Lukiianchuk, 2025)
~2 hrs
Window to consider conversion
A public TCCC decision point - before irreversible ischemic injury advances
~6 hrs
Threshold: do not release · evacuate
A public TCCC decision point - release risk rises sharply after prolonged use
Solution · TimeAid TQ
Patent Pending (KR)No power. Elapsed time, at a glance.
TimeAid TQ attaches to an existing tourniquet and shows how much time has passed through color and touch - with no power, battery, or electronics.
Clip
Clip it directly onto an existing tourniquet.
Press
Press once to activate when the tourniquet is applied.
Read
Read the elapsed time by color and touch - even at night or with gloves.
Vision · Public Good
Technology to the world. Standards home to Korea.
TimeAid starts where bleeding control needs elapsed time most urgently - then carries that same public purpose into education, kits, and national safety infrastructure. Like AEDs, bleeding-control readiness should become ordinary public protection.
Global standards, local impact
We align with proven STOP THE BLEED® and TCCC time-recording principles - and work to bring that standard into Korean education, kits, and public policy.
Education × equipment
Training alone is not enough. We pursue a K-STB path that pairs bleeding-control education with the equipment people need when seconds matter.
From field validation to public infrastructure
Capability proven in demanding environments should return to citizens - as trusted kits, clearer protocols, and safer emergency response.
Designed for everyone
Power-free, multi-sensory indication supports night, gloves, and low-vision conditions - so time information reaches more people, not fewer.
Credibility
An idea already in motion.
We are building with clinical advisors, academic partners, and institutions that share the mission of safer bleeding control - while protecting proprietary technology still under patent review.
Defense startup recognition
Winner of the ROK Air Force startup competition, and advancing through the national Defense Startup Contest.
Clinical & academic collaboration
Engaging trauma and emergency clinicians, regional medical centers, and relevant societies for validation and standards dialogue.
Partners across the ecosystem
Open to manufacturers, government and EMS, hospitals and researchers, NGOs, and mission-aligned supporters.
Partnership
Advancing emergency care together.
No single organization can close the gap between injury and survival alone. Medical Chrono is openly seeking partners who share our mission - restoring time information to bleeding control and advancing emergency medicine. Whether you build products, deliver care, set standards, or fund innovation, there is a place for you in this work.
Who we want to work with
Medical device & kit manufacturers
Tourniquet, IFAK, and bleeding-control kit makers who want to add time tracking to their products through OEM and co-development partnerships.
International organizations & NGOs
Humanitarian, disaster-response, and global-health organizations working to improve trauma outcomes in the field - from conflict zones to underserved regions.
Government, military & EMS
Defense agencies, law enforcement, and emergency medical services evaluating next-generation bleeding-control equipment for procurement and field trials.
Hospitals, academia & research
Trauma centers, universities, and researchers interested in clinical validation, field studies, and evidence-building around tourniquet time management.
How we can work together
OEM & product integration
Integrate TimeAid technology into your tourniquets, kits, and equipment lines.
Distribution & procurement
Bring TimeAid TQ to your region, agency, or customer network.
Joint research & pilots
Run field trials, clinical studies, and standards work with our team.
Investment & grants
Support the development and scale-up of power-free time-indication technology.
Become a partner
Tell us who you are and what you would like to build together. We review every proposal and respond directly.
We welcome proposals in English and Korean.
Contact
Reach out for partnership or inquiries.
Share how you would like to collaborate. Our team reviews every message and follows up directly.