From Game of Chance
to Clinical Choice.
We are using what is already known to work: and building on exactly where it fails. Our science is grounded in biomechanics, validated by peer-reviewed evidence, and shaped by African midwives.
The Science of
Protection.
Two interventions have robust evidence behind them. The challenge has never been the science: it's been reliable, consistent delivery in real clinical settings.
Warm Compresses~40% Risk Reduction
Randomised controlled trials confirm that warm compresses applied during the second stage of labor significantly reduce the risk of severe perineal tears.1 Heat increases blood flow and relaxes collagen fibers in the perineum, allowing controlled stretching rather than failure.
1 Aasheim et al., Cochrane Database Syst Rev, 2017. Also: Dahlen et al., BMJ, 2007 (WARMth trial).
Manual Perineal Support (MPS)~60% Reduction in OASI
"Hands-on" guarding of the perineum reduces obstetric anal sphincter injury rates by up to 60% when applied consistently.2 Supporting the tissue as it stretches guides the fetal head's exit and prevents explosive, uncontrolled trauma.
2 Laine et al., BJOG, 2012 (Norwegian OASI trial). Also: Bulchandani et al., BJOG, 2015.
The Gap
"While we know what works, there is currently no simple, consistent, or repeatable way to deliver both interventions simultaneously at the bedside in busy, under-resourced labor wards."
: Sawazisha MedTech Clinical Observation, 2025
Clinical Decision Support
Waridi functions as a clinical decision aid: helping midwives deliver safer episiotomies when clinically indicated (WHO recommended rate: 10%).
Guided Episiotomy: Evidence
A landmark study (Kalis et al., BJOG, 2012) demonstrated that mediolateral episiotomy at exactly 45–60° from the midline significantly reduces OASI compared to freehand cuts: yet clinicians performing freehand cuts deviate by up to 20° from the intended angle.3
Angle Guides Improve Outcomes
Studies using episiotomy angle guides show a reduction in inadvertent sphincter involvement and extension injuries.4 Waridi's built-in guide aids the clinician in the high-pressure moment: replacing guesswork with precision.
Post-Incision Tear Stop
Even after an episiotomy, Waridi's mechanical counter-stretch layer remains active: acting as a tear stop that resists propagation of the incision toward the sphincter.
3 Kalis et al., BJOG, 2012. 4 Räisänen et al., Acta Obstet Gynecol Scand, 2011.
Four Pillars of Safety
Any intervention that wants to reduce perineal trauma must address the biomechanics through which tears happen. There are four pillars: Waridi directly addresses Pillars 2 and 3.
Reduce Friction
Lowering frictional forces during descent reduces the mechanical pull on delicate perineal tissues.
Increase Elasticity
Enhancing tissue stretchability through controlled thermal therapy at ~40°C: the core function of Waridi's warm compress layer.
Disperse Tension
Spreading mechanical stress evenly across the perineal body rather than concentrating it at the fourchette: Waridi's counter-stretch adhesive layer.
Guided Dimensions
Guiding the passage to minimize the effective dimensions of the fetal head at crowning.
View the Full Evidence
Dossier.
Request our clinical data summary or inquire about joining our research consortium.