Technical Specifications

Alpha 2 System Frequency Response Curve

Technical Data

Parameter Values
Gain At 1600Hz
Maximum		 29dB
38 dB
Peak Output 115 dB
Frequency Range 280 – 7100Hz
Equivalent Input Noise 17 dB
Battery Current Drain 0.95 mA
Power Supply 1.3 V
Battery Size 13
Expected Battery Life 310 – 315 hours

Complication Rate

Sophono™ Alpha has fewer clinical complications than any abutment based bone anchored hearing systems such as the Baha® based on twenty-four (24) independent peer review publications over the last six (6) years.

complication rate by device chart smaller

 

  1. Ali, S., L. Hadoura, et al. (2009). “Bone-anchored hearing aid A single-stage procedure in children.” Int J Pediatr Otorhinolaryngol 73(8): 1076-1079.
  2. Badran, K., A. K. Arya, et al. (2009). “Long-term complications of bone-anchored hearing aids: a 14-year experience.” J Laryngol Otol 123(2): 170-176.
  3. Christensen, L., G. T. Richter, et al. (2010). “Update on bone-anchored hearing aids in pediatric patients with profound unilateral sensorineural hearing loss.” Arch Otolaryngol Head Neck Surg 136(2): 175-177.
  4. de Wolf, M. J., M. K. Hol, et al. (2008). “Nijmegen results with application of a bone-anchored hearing aid in children: simplified surgical technique.” Ann Otol Rhinol Laryngol 117(11): 805-814.
  5. de Wolf, M. J., M. K. Hol, et al. (2009). “Bone-anchored hearing aid surgery in older adults: implant loss and skin reactions.” Ann Otol Rhinol Laryngol 118(7): 525-531.
  6. Faber, H. T., M. J. de Wolf, et al. (2009). “Bone-anchored hearing aid implant location in relation to skin reactions.” Arch Otolaryngol Head Neck Surg 135(8): 742-747.
  7. Goodyear, P. W., C. H. Raine, et al. (2006). “The Bradford bone-anchored hearing aid programme: impact of the multidisciplinary team.” J Laryngol Otol 120(7): 543-552.
  8. Hobson, J. C., A. J. Roper, et al. (2010). “Complications of bone-anchored hearing aid implantation.” J Laryngol Otol 124(2): 132-136.
  9. House, J. W. and J. W. Kutz, Jr. (2007). “Bone-anchored hearing aids: incidence and management of postoperative complications.” Otol Neurotol 28(2): 213-217.
  10. Ida, J. B., S. Mansfield, et al. (2011). “Complications in pediatric osseointegrated implantation.” Otolaryngol Head Neck Surg 144(4): 586-591.
  11. Kohan, D., L. G. Morris, et al. (2008). “Single-stage BAHA implantation in adults and children: is it safe?” Otolaryngol Head Neck Surg 138(5): 662-666.
  12. Kraai, T., C. Brown, et al. (2011). “Complications of bone-anchored hearing aids in pediatric patients.” Int J Pediatr Otorhinolaryngol 75(6): 749-753.
  13. Lloyd, S., J. Almeyda, et al. (2007). “Updated surgical experience with bone-anchored hearing aids in children.” J Laryngol Otol 121(9): 826-831.
  14. Mace, A. T., A. Isa, et al. (2009). “Patient quality of life with bone-anchored hearing aid: 10-year experience in Glasgow, Scotland.” J Laryngol Otol 123(9): 964-968.
  15. McDermott, A. L., J. Williams, et al. (2009). “The birmingham pediatric bone-anchored hearing aid program: a 15-year experience.” Otol Neurotol 30(2): 178-183.
  16. Monksfield, P., E. C. Ho, et al. (2009). “Experience with the longer (8.5 mm) abutment for Bone-Anchored Hearing Aid.” Otol Neurotol 30(3): 274-276.
  17. Priwin, C. and G. Granstrom (2005). “The bone-anchored hearing aid in children: a surgical and questionnaire follow-up study.” Otolaryngol Head Neck Surg 132(4): 559-565.
  18. Ricci, G., A. Della Volpe, et al. (2010). “Results and complications of the Baha system (bone-anchored hearing aid).” Eur Arch Otorhinolaryngol 267(10): 1539-1545.
  19. Ricci, G., A. D. Volpe, et al. (2011). “Bone-anchored hearing aids (Baha) in congenital aural atresia: personal experience.” Int J Pediatr Otorhinolaryngol 75(3): 342-346.
  20. Romo, T., 3rd, L. G. Morris, et al. (2009). “Reconstruction of congenital microtia-atresia: outcomes with the Medpor/bone-anchored hearing aid-approach.” Ann Plast Surg 62(4): 384-389.
  21. Shirazi, M. A., S. J. Marzo, et al. (2006). “Perioperative complications with the bone-anchored hearing aid.” Otolaryngol Head Neck Surg 134(2): 236-239.
  22. Stalfors, J. and A. Tjellstrom (2008). “Skin reactions after BAHA surgery: a comparison between the U-graft technique and the BAHA dermatome.” Otol Neurotol 29(8): 1109-1114.
  23. van de Berg, R., R. J. Stokroos, et al. (2010). “Bone-anchored hearing aid: a comparison of surgical techniques.” Otol Neurotol 31(1): 129-135.
  24. Wazen, J. J., D. L. Young, et al. (2008). “Successes and complications of the Baha system.” Otol Neurotol 29(8): 1115-1119.