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Related Experiment Videos

Mechanical complications associated with mentor inflatable penile prosthesis.

W B Steinkohl1, G E Leach

  • 1Department of Urology, Kaiser Permanente Medical Center, Los Angeles, California.

Urology
|July 1, 1991
PubMed
Summary

The Mentor inflatable penile prosthesis shows improved mechanical reliability after a 1985 design modification. Post-modification, the failure rate dropped significantly, making the device more dependable for patients.

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Area of Science:

  • Urology
  • Biomedical Engineering
  • Medical Device Reliability

Background:

  • Mechanical failures in penile prostheses can impact patient outcomes.
  • The Mentor inflatable penile prosthesis was designed to address these reliability issues.

Purpose of the Study:

  • To evaluate the mechanical reliability of the Mentor inflatable penile prosthesis.
  • To assess the impact of a 1985 design modification on device failure rates.

Main Methods:

  • Retrospective review of 46 patients implanted with the Mentor device between December 1982 and June 1987.
  • Analysis of mechanical failure rates before and after the April 1985 device modification.

Main Results:

  • Prior to the 1985 modification, 10 out of 30 (33.3%) implantations experienced mechanical failure, primarily due to input tubing cracks.

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  • After the April 1985 design improvement, the mechanical failure rate decreased to 4%.

    • Conclusions:

    • The Mentor inflatable penile prosthesis demonstrates significantly improved mechanical reliability following its 1985 design enhancement.
    • The device modification effectively addressed the primary cause of mechanical failure, enhancing its long-term dependability.