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Testing by Device Type

Urological

Devices that contact the reproductive organs, urethra, urinary bladder, ureter, rectum or kidney may be either externally communicating or implants. Typical devices in this category are dialyzers, catheters, condoms, stents, diapers or various types of implants to the bladder, uterus or Fallopian tube. Depending upon the end use of the device, it may be classified as mucosal contact, externally communicating tissue contact or an implant device. These devices are usually constructed of polymer or rubber materials, metal alloys, fabric or biological tissue.

NAMSA Technical Specialists and Scientists are adept at developing non-clinical testing programs based on international requirements. Veterinary surgeons on staff are available to plan and conduct biocompatibility and functionality studies that require surgical intervention.

Standards and Regulation

First consideration should be given to FDA guidance documents or ISO procedures already in place. For example, significant guidance exists for dialyzer reuse evaluations. In the absence of guidance or requirements, use ISO 10993 as a basis for developing a biological test program.

Each device should be examined on it's own merits. In some cases, prior data may be available from suppliers or in the literature, or there may be efficacy or functionality testing in progress that can be used to satisfy a portion of the safety requirements.

Test Categories

The following test areas should be considered for urological and related devices:

Characterization of Materials

  • Thorough Chemical Characterization of all critical components.

R & D Function and Performance

  • Clinical like implants or treatments
  • Recirculating blood evaluations
  • Studies to evaluate encrustation, coatings or antiadhesion
  • Physical or leakage testing
  • Local tolerance tests

Biocompatibility

  • Cytotoxicity by the MEM Elution method
  • Intracutaneous injection or irritation screen
  • Acute Systemic toxicity screen
  • Delayed Contact Sensitization
  • Penile, vaginal or rectal irritation study
  • Short term implant study

Testing options depending on the end use of the device

  • Series of Genotoxicity evaluations
  • Subchronic toxicity up to 13 weeks
  • Chronic toxicity up to 26 weeks
  • Carcinogenicity or Transgenic mouse study

Complete Sterility Assurance Program

  • Sterilization validation
  • Environmental monitoring
  • Packaging validation and shelf life testing

This list provides an overview of testing programs for urologic or reproductive devices. NAMSA Technical Specialists and Scientists will partner with you to develop a cost effective program and minimize your time to market. Our experts will help you design specific test programs based on the unique characteristics of each device.

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