Surgical instruments are tools which are utilized by healthcare providers during surgical operations, tests, wound treatment, and medical training. Every surgical instrument has its unique purpose, such as cutting, holding, clamping, dissecting, suturing or retracting tissues.
There is a wide range of surgical instruments from simple scissors and forceps to special orthopedic and surgical tools and selecting the right tool is one of the critical parts of surgical procedure preparation. Knowing the types of surgical instruments will allow students, health care providers, and medical institutions to make the right choice while choosing surgical equipment.
What Are Surgical Instruments?
Surgical instruments refer to specialized tools that are specifically designed for undertaking specific operations in surgery or clinical settings. These instruments are created in various forms, sizes, and designs, depending on their uses.
Most reusable surgical instruments are usually made from stainless steel since this metal is durable, resistant to corrosion, and can be appropriately cleaned and sterilized.
The design of a particular tool may significantly differ based on its function. Surgical scissors are designed for cutting, whereas forceps are primarily for holding.
Main Types of Surgical Instruments
Generally speaking, surgical instruments can be classified based on their uses. Some of the common classifications are cutting tools, grasping tools, clamping tools, retractors, suturing tools, and specific tools.
1. Cutting and Dissecting Instruments
Cutting instruments are used to cut tissue, sutures, dressings, or other materials during medical procedures.
Common examples include:
- Surgical scissors
- Dissecting scissors
- Operating scissors
- Scalpel handles
- Surgical blades
Scissors are available in different shapes and sizes. Straight scissors may be useful for cutting materials or sutures, while curved designs can be used for specific surgical applications.
The appropriate instrument depends on the procedure and the material being cut.
2. Surgical Forceps
Forceps are among the most widely used surgical instruments. They allow healthcare professionals to grasp, hold, manipulate, or stabilize tissue and other materials.
Common types include:
- Adson forceps
- Tissue forceps
- Dressing forceps
- Serrated forceps
- Thumb forceps
Some forceps have serrated tips to improve grip, while others are designed with smooth or specialized surfaces for particular applications.
For example, Adson forceps are commonly used for handling tissue or materials where controlled grasping is required.
3. Hemostatic and Clamping Instruments
Hemostatic instruments are designed to clamp blood vessels or other structures during procedures.
Examples include:
- Mosquito forceps
- Kelly clamps
- Crile forceps
- Hemostatic clamps
A Mosquito forceps, for example, is a smaller hemostatic instrument commonly used for clamping small blood vessels or holding tissue during procedures.
These instruments are generally designed with locking mechanisms that allow the user to maintain a controlled grip.
4. Needle Holders
Needle holders are designed to securely hold a surgical needle during suturing.
They are particularly important when practicing or performing suturing because controlled needle manipulation can help support accurate stitch placement.
Common needle holders include:
- Mayo-Hegar needle holders
- Olsen-Hegar needle holders
- Fine needle holders
A Hegar needle holder is a commonly recognized design featuring finger rings and a locking mechanism. The appropriate size depends on the type of procedure and needle being used.
5. Surgical Retractors
Retractors are used to hold tissue or structures away from the surgical field, helping provide access and visibility.
Retractors can be handheld or self-retaining, depending on their design.
Examples include:
- Langenbeck retractors
- Army-Navy retractors
- Richardson retractors
- Self-retaining retractors
The size and shape of the retractor should correspond with the procedure and anatomical area involved.
6. Surgical Scissors
Surgical scissors deserve special attention because they are available in numerous configurations.
Some common designs include:
- Straight scissors
- Curved scissors
- Mayo scissors
- Metzenbaum scissors
- Iris scissors
Mayo scissors are generally heavier and can be used for cutting tougher materials or tissue, depending on their specific design.
Metzenbaum scissors are typically finer and designed for more delicate dissection.
Iris scissors are smaller instruments commonly associated with precise cutting applications.
Selecting the appropriate scissors depends on the material, tissue, procedure, and required level of precision.
Surgical Instruments for Suturing
Suturing requires several instruments working together. A basic suturing setup may include a needle holder, tissue forceps, scissors, and appropriate suture material.
For medical students, a suture practice kit can provide an opportunity to become familiar with these instruments in a controlled training environment.
A typical practice setup may include:
- Needle holder
- Surgical scissors
- Adson forceps
- Sutures
- Practice pad
- Other basic surgical tools
Simulation-based practice allows learners to develop familiarity with instrument handling and basic suturing techniques before progressing to supervised clinical practice.
How to Choose Surgical Instruments
Selecting surgical instruments requires consideration of their intended use, design, material, size, and compatibility with the procedure.
Consider the Intended Application
The first consideration should be the procedure or task for which the instrument will be used. A delicate dissection procedure may require different scissors and forceps than a general surgical procedure.
Check the Instrument Design
Look at the handle, tips, jaws, locking mechanism, and overall configuration. These features affect how the instrument is handled and what it can accomplish.
Consider the Material
Stainless steel is commonly used for reusable surgical instruments because of its durability and resistance to corrosion when properly maintained.
Select the Appropriate Size
Surgical instruments are available in different lengths and sizes. The correct size depends on the procedure, anatomical area, and intended application.
Consider Reprocessing Requirements
Reusable instruments require appropriate cleaning, disinfection, and sterilization according to the manufacturer's instructions and applicable healthcare protocols.
Importance of Surgical Instrument Quality
The quality of the surgical instruments purchased is one aspect that is not to be overlooked. Surgical instruments must be made using the right materials and be designed to suit their purpose.
A badly made instrument may be characterized by problems with its alignment, sharpness, locking features, or finish.
Reusable instruments must also be checked before they can be used to check if they have any signs of damage, corrosion, or wear.
Care and Maintenance of Surgical Instruments
The proper handling of these instruments will ensure their usability and appearance.
Proper handling of these instruments after use should be done according to the manufacturers' guidelines. It is important to clean the instruments to get rid of all the biological material and contamination before proceeding to the disinfection or sterilization.
Hinged instruments need special care while cleaning.
Storing the instruments in a proper place is important as well. They need to be stored in a clean, dry place where they cannot get any damages.
It is important to follow the infection control guidelines of your healthcare facility as well as the manufacturers' guidelines.
Surgical Instruments for Medical Training
Surgical instruments are not confined only to the operating room. They are also used extensively in medical training and simulations.
Medical students can be taught about the uses of various instruments via practical sessions and demonstrations.
These can involve identifying surgical instruments, knowing how to handle them properly, performing suturing, and the purposes for which various surgical instrument types were made.
A surgical instrument set will facilitate these tasks because it contains several common instruments in one place.
Common Surgical Instruments Every Medical Student Should Know
Students beginning surgical skills training may encounter several instruments repeatedly. These include:
- Surgical scissors
- Adson forceps
- Tissue forceps
- Mosquito forceps
- Needle holders
- Scalpel handles
- Retractors
- Hemostatic clamps
Learning the names and functions of these instruments can help students become more comfortable during practical training.
Final Thoughts
Medical surgical instruments are vital components of today's medical practice and education. Forceps, scissors, needle holders, retractors, and other instruments each have specific purposes in mind during their design.
In choosing surgical instruments, it is important to think about the intended use, type of the instrument, materials, size, quality, and maintenance. Proper maintenance includes cleaning, disinfecting, sterilizing, inspecting, and storing reusable surgical instruments.
The choice of the appropriate instruments will be beneficial for medical professionals and students in all situations where these instruments can be applied.