Surgical Technology Principles Notes

SURGICAL TECHNOLOGY PRINCIPLES

  • Perioperative Context:

    • Definition: The perioperative period refers to the time period encompassing preoperative, intraoperative, and postoperative phases of surgical care.

  • Sterility and Contamination:

    • A sterile instrument is one that is free from all microorganisms.
    • Contamination occurs when a sterile item or surface comes into contact with a nonsterile object or substance.
    • Examples of Contamination:
    • Accidental touching of a sterile glove to nonsterile items, e.g., door handles.
    • Skin punctures or breaches in sterile drapes can lead to contamination.

  • Gross Contamination:

    • Definition: The occurrence of a significant breach in sterility, such as ripping and spilling infectious materials into a sterile field or the peritoneal cavity.

DISINFECTION

  • Definition: Disinfection is the process that eliminates or reduces harmful microorganisms on inanimate surfaces or objects.
    • Disinfectants can vary in efficacy against different types of microorganisms.
    • Detailed discussions found in Chapter 10.

ANTISEPSIS

  • Definition: Antisepsis refers to the destruction of microorganisms on living tissues, especially skin.
    • Antiseptic Application:
    • Commonly used in hand hygiene, surgical hand antisepsis, and preoperative skin preparation.
    • Comprehensive procedures for surgical hand antisepsis are outlined in Section V.

BARRIERS IN STERILE TECHNIQUE

  • Concept of Barriers:
    • Crucial principle in maintaining sterile technique involves creating barriers between potential contamination sources and sterile surfaces.
    • Tools for contamination control include:
    • Physical barriers (e.g., sterile drapes, gloves).
    • Containment and confinement strategies to limit exposure to nonsterile areas.

OPERATING ROOM ENVIRONMENT

  • Functional Zones of the Operating Room (OR):
    • Various functional areas within the OR designated by levels of sterility, including:
    • Restricted Zone: Access limited to sterile personnel only.
    • Semi-restricted Zone: Area where surgical attire is required. Includes locations like surgical scrub areas.
    • Unrestricted Zone: Public access areas such as waiting rooms and administrative offices.
    • Important Zones:
    • Staff locker rooms, preoperative and postoperative patient care areas, and circulation areas result in semi-restricted access criteria.
    • Heating, Ventilation, and Surface Cleaning:
    • Specific requirements are necessary to maintain a sterile environment within each zone.
    • Refer to Table 9.1 in the content for detailed layouts of zones as classified by the Association for the Advancement of Medical Instrumentation (AAM) and other professional guidelines.