Cleaning and Care of Surgical Instruments

Alumkal

Introduction 

  1. The Central Sterile Supply Department (CSSD) is an essential unit in hospitals responsible for the cleaning, disinfection, sterilization, storage, and distribution of medical and surgical instruments.

  2. The primary function of CSSD is to ensure that all reusable instruments and equipment used in patient care are free from microorganisms and safe for clinical use.

  3. CSSD plays a crucial role in maintaining hospital hygiene and infection control, which helps prevent the spread of infections within healthcare facilities.

  4. Proper functioning of the CSSD significantly reduces the risk of hospital-acquired infections (HAIs).

  5. The department ensures the continuous supply of sterile instruments and materials required for surgeries and other medical procedures.

  6. CSSD logistics includes the collection of used instruments, cleaning, decontamination, inspection, packaging, sterilization, storage, and distribution.

  7. Sterile supplies are distributed to various hospital departments such as operation theaters, wards, emergency units, and intensive care units (ICUs).

  8. Efficient management of CSSD ensures safe patient care, improved surgical outcomes, and effective infection control practices in healthcare institutions.

 

Various Methods of Cleaning

  • Cleaning is the first and most essential step in the processing of surgical instruments before disinfection or sterilization.
  • The main purpose of cleaning is to remove blood, body fluids, tissue debris, and other organic materials from instruments.
  • Proper cleaning reduces the number of microorganisms and ensures the effectiveness of further sterilization procedures.

1. Manual Cleaning

Manual cleaning involves washing instruments by hand using water, detergents, and brushes.

Procedure:

  1. Instruments are first rinsed with water to remove visible debris.

  2. They are then soaked in a detergent or enzymatic solution.

  3. Soft brushes are used to scrub surfaces, joints, and crevices to remove dirt and organic material.

  4. After scrubbing, instruments are thoroughly rinsed with clean water.

  5. Finally, they are dried properly before sterilization or disinfection.

Advantages:

  • Simple and inexpensive method

  • Suitable for delicate instruments

Disadvantages:

  • Time-consuming

  • Risk of exposure to infectious materials for healthcare workers

 

2. Mechanical Cleaning

Mechanical cleaning uses automatic washing machines or washer-disinfectors designed specifically for medical instruments.

Features:

  • High-pressure water jets

  • Controlled temperature washing cycles

  • Automatic detergent dispensing

  • Automated rinsing and drying

Advantages:

  • Reduces manual handling of contaminated instruments

  • Provides consistent and efficient cleaning

  • Improves safety for healthcare staff

Disadvantages:

  • Requires specialized equipment

  • Higher operational cost

 

3. Ultrasonic Cleaning

Ultrasonic cleaning is a modern cleaning technique that uses high-frequency sound waves to remove contaminants from surgical instruments.

Principle:
High-frequency ultrasonic waves create microscopic bubbles in the cleaning solution. These bubbles collapse rapidly in a process called cavitation, which removes debris from the surfaces and small crevices of instruments.

Advantages:

  • Highly effective for instruments with hinges, joints, and narrow spaces

  • Removes microscopic debris that cannot be removed by manual cleaning

  • Reduces the need for extensive manual scrubbing

Disadvantages:

  • Requires specialized ultrasonic equipment

  • Instruments must still be rinsed and dried afterward

 

4. Enzymatic Cleaning

Enzymatic cleaning uses special detergents containing enzymes that break down organic materials such as blood, proteins, and tissue.

Common enzymes used:

  • Protease (breaks down proteins)

  • Lipase (breaks down fats)

  • Amylase (breaks down carbohydrates)

Advantages:

  • Effective removal of organic material

  • Suitable for delicate surgical instruments

 

5. Automated Washer–Disinfector Cleaning

This method combines cleaning and thermal disinfection in one machine.

Process:

  1. Pre-rinse

  2. Detergent washing

  3. Rinsing

  4. Thermal disinfection at high temperature

  5. Drying

Advantages:

  • Highly standardized cleaning process

  • Reduces risk of infection for staff

  • Efficient for large volumes of instruments

 

Care and Testing of Surgical Instruments

Proper care and maintenance of surgical instruments are essential to ensure safe surgical procedures, prevent infection, and prolong the lifespan of instruments. Instruments must be handled carefully during surgery, cleaning, sterilization, and storage to maintain their functionality and precision.

General Guidelines for Care of Instruments

  1. Immediate Cleaning: Instruments should be cleaned immediately after use to remove blood, tissue, and body fluids.

  2. Proper Handling: Instruments should be handled gently to prevent damage to delicate parts such as joints and cutting edges.

  3. Inspection and Testing: Instruments must be inspected regularly for alignment, sharpness, and proper functioning.

  4. Lubrication: Hinged instruments should be lubricated with appropriate surgical lubricants after cleaning and before sterilization.

  5. Avoid Rough Handling: Dropping or mishandling instruments may damage their structure and reduce efficiency.

  6. Proper Sterilization: Instruments must be sterilized according to recommended procedures before reuse.

  7. Correct Storage: Instruments should be stored in dry, clean, and sterile conditions to prevent corrosion and contamination.

Care and Testing of Specific Surgical Instruments

1. Haemostatic Forceps

Use

Haemostatic forceps are used to clamp blood vessels and control bleeding during surgical procedures.

Testing

  • Check the locking mechanism (ratchet) to ensure it closes and opens smoothly.

  • Inspect the alignment of the jaws to ensure proper grip.

  • Ensure the tips meet accurately without gaps.

Abuse

  • Using forceps for tasks other than vessel clamping.

  • Applying excessive pressure which may damage the ratchet mechanism.

  • Dropping instruments which may cause misalignment.

Care During Surgery

  • Use the appropriate size of forceps.

  • Avoid unnecessary force when clamping tissues.

  • Clean blood and tissue debris immediately after use.

2. Needle Holders

Use

Needle holders are used to hold and control surgical needles during suturing.

Testing

  • Check the alignment of jaws and gripping surfaces.

  • Ensure the ratchet mechanism works smoothly.

  • Confirm that the needle holder securely grips the needle without slipping.

Abuse

  • Using needle holders as pliers or clamps.

  • Excessive force that may damage the gripping surface.

  • Using for cutting wires or hard materials.

Care During Surgery

  • Hold the needle properly in the jaws to prevent damage.

  • Avoid unnecessary pressure on the instrument.

  • Clean immediately after use.

3. Surgical Knife and Blade

Use

Surgical knives and blades are used for precise cutting of tissues during surgical procedures.

Testing

  • Ensure the blade is sharp and properly attached to the handle.

  • Inspect the blade for any damage or dull edges before use.

Abuse

  • Using blades for cutting non-surgical materials.

  • Reusing disposable blades.

  • Improper disposal leading to injury.

Care During Surgery

  • Handle carefully to avoid accidental injury.

  • Replace dull blades immediately.

  • Dispose of used blades in sharps containers.

4. Surgical Scissors

Use

Surgical scissors are used for cutting tissues, sutures, and dressings.

Testing

  • Check sharpness of the blades.

  • Ensure proper alignment of cutting edges.

  • Test smooth opening and closing movement.

Abuse

  • Cutting hard materials such as wires or thick gauze.

  • Dropping scissors which may damage alignment.

  • Using tissue scissors for non-surgical purposes.

Care During Surgery

  • Use scissors according to their intended purpose.

  • Keep cutting edges protected.

  • Clean and dry immediately after use.