Torsional waves

Innitius’ medical devices develop a novel technology called Torsional Waves, a type of shear elastic waves that propagate through soft tissue, radially and in-depth in a curled geometry.

Torsional Waves are used to diagnose pathologies that manifest themselves through changes in tissue consistency.

Our first product, FineBirth’s patented intravaginal probe measures the consistency (shear modulus) of the cervical tissue, a highly specific, direct marker of pending birth.

The shear modulus, in combination with other clinical parameters of the pregnant woman, is used by an Artificial Intelligence algorithm to provide a real-time assessment of whether the woman is experiencing a true or false preterm labor threat and informs health professionals in providing appropriate care.

Check out our references below.


Technology References

  • Viscoelastic model characterization of human cervical tissue by torsional waves. A Callejas, J Melchor, IH Faris, G Rus. Journal of the Mechanical Behavior of Biomedical Materials 115, 104261 2 2021
  • Hyperelastic Ex Vivo Cervical Tissue Mechanical Characterization. AM Callejas Zafra, J Melchor, IH Faris al Azzawi, G Rus Carlborg. Mdpi 2020
  • Hyperelastic Ex Vivo Cervical Tissue Mechanical Characterization. A Callejas, J Melchor, IH Faris, G Rus. Sensors 20 (16), 4362 4 2020
  • Why Are Viscosity and Nonlinearity Bound to Make an Impact in Clinical Elastographic Diagnosis? G Rus, IH Faris, J Torres, A Callejas, J Melchor. Sensors 20 (8), 2379 19 2020.
  • Kelvin–Voigt Parameters Reconstruction of Cervical Tissue-Mimicking Phantoms Using Torsional Wave Elastography. A Callejas, A Gomez, IH Faris, J Melchor, G Rus. Sensors 19 (15), 3281 9 2019
  • Performance study of a torsional wave sensor and cervical tissue characterization. A Callejas, A Gomez, J Melchor, M Riveiro, P Massó, J Torres, Sensors 17 (9), 2078 23 2017
  • Torsional ultrasound sensor optimization for soft tissue characterization. J Melchor, R Muñoz, G Rus. Sensors 17 (6), 1402 15 2017