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Den mödosamma vägen till säkrare (cykel)hjälmar  Peter Halldin Division of Neuronic, School of Technology and Health Royal Institute of Technology, Stockholm, Sweden MIPS AB, Stockholm, Sweden
Outline ,[object Object],[object Object],[object Object],[object Object]
The School of Technology and Health, at the Royal Institute of Technology
Research activities at the Division of Neuronic, KTH ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ongoing helmet research at KTH ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The problem! ,[object Object],[object Object],[object Object],[object Object]
Conservative test methods Is this realistic?
Accident statistics ,[object Object],Radial = Oblique + Tangential
Types of head injuries Radial Tangentiel Translational Angled Rotational Impact Direction Acceleration direction
Types of head injuries Radial Tangential Angled ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Conventional helmets Helmets with MIPS Low Friction Layer Type of injury Acceleration direction Impact Direction
The KTH head model LS-DYNA (Kleiven et al. 2008) Superior- Sag. Sinus Pia mater Corpus Callosum Thalamus Falx Midbrain Brainstem Transverse- sinus   Tentorium
First principle strain distribution for EPP 31 kg/m 3  in radial impact First principle strain distribution for EPP 31 kg/m 3  in oblique impact Radial vs. oblique impact
We defined a need…… ,[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object]
The Product – ”copying the evelution” The cerebrospinal fluid  has been mimiced With a  teflon layer  (b) in the helmet. Snett islag M.I.P.S. –  Multi-directional Impact Protection System
Outline ,[object Object],[object Object],[object Object],[object Object]
The KTH oblique helmet  impact test Resultant = 7m/s:45º 5m/s 5m/s
The KTH oblique helmet  impact test
MIPS making helmets safer MIPS reduce the rotational violence by over  40%
Proposal for a new oblique test standard ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object]
History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Future ,[object Object],[object Object],[object Object]
Tack till ,[object Object],[object Object],[object Object],[email_address]

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Session 66 Peter Halldin

  • 1. Den mödosamma vägen till säkrare (cykel)hjälmar Peter Halldin Division of Neuronic, School of Technology and Health Royal Institute of Technology, Stockholm, Sweden MIPS AB, Stockholm, Sweden
  • 2.
  • 3. The School of Technology and Health, at the Royal Institute of Technology
  • 4.
  • 5.
  • 6.
  • 7. Conservative test methods Is this realistic?
  • 8.
  • 9. Types of head injuries Radial Tangentiel Translational Angled Rotational Impact Direction Acceleration direction
  • 10.
  • 11. The KTH head model LS-DYNA (Kleiven et al. 2008) Superior- Sag. Sinus Pia mater Corpus Callosum Thalamus Falx Midbrain Brainstem Transverse- sinus Tentorium
  • 12. First principle strain distribution for EPP 31 kg/m 3 in radial impact First principle strain distribution for EPP 31 kg/m 3 in oblique impact Radial vs. oblique impact
  • 13.
  • 14.
  • 15. The Product – ”copying the evelution” The cerebrospinal fluid has been mimiced With a teflon layer (b) in the helmet. Snett islag M.I.P.S. – Multi-directional Impact Protection System
  • 16.
  • 17. The KTH oblique helmet impact test Resultant = 7m/s:45º 5m/s 5m/s
  • 18. The KTH oblique helmet impact test
  • 19. MIPS making helmets safer MIPS reduce the rotational violence by over 40%
  • 20.
  • 21.
  • 22.
  • 23.
  • 24.