If you are preparing for surgical tech clinicals, studying for the CST exam, or trying to feel more confident in the OR, learning surgical instruments is one of the most important steps you can take.
Surgical technologists are expected to recognize instruments quickly, understand how they are used, know when they are needed, and keep the sterile field organized during procedures. That can feel overwhelming at first because there are so many instrument names, many look similar, and the same instrument may be called something slightly different depending on the facility or surgeon.
This guide breaks down common surgical instruments into practical categories so you can study smarter. It is designed for surgical tech students, new scrub techs, and anyone who wants a stronger foundation before stepping into the operating room.
Instrument knowledge is not just about passing a test. It directly affects how well you perform during clinicals and on the job.
When you know instruments well, you can:
For students, instrument recognition is one of the biggest confidence builders during clinical rotations. The more familiar you are with instrument categories and common uses, the more prepared you will feel in real cases.
Trying to memorize hundreds of instruments all at once usually does not work well. A better approach is to group them by function.
Study instruments in these categories:
It also helps to learn each instrument by answering four questions:
These instruments are used to cut tissue, dissect structures, or remove material.
Common examples:
Scalpel and blades
Scalpels are used to make incisions. Blade sizes vary by procedure, with some commonly used for skin incisions and others for finer dissection.
Mayo scissors
Mayo scissors are heavier scissors used to cut dense tissue, fascia, or sutures. Straight Mayo scissors are often used on the sterile field for cutting sutures, while curved Mayo scissors are more commonly used for tissue.
Metzenbaum scissors
Metzenbaum scissors are used for cutting delicate tissue. They are usually longer and lighter than Mayo scissors and are not typically used for sutures or heavy tissue.
Tenotomy scissors
These are finer scissors used for delicate dissection in smaller or more precise surgical fields.
Wire cutters or suture scissors
These may appear in specialty trays where tougher material needs to be cut.
Study tip: One of the most common student mistakes is confusing Mayo and Metzenbaum scissors. Focus on tissue type, weight, and blade shape.
These instruments are used to hold tissue, manipulate structures, or secure drapes and materials.
Common examples:
Adson forceps
Adson forceps are thumb forceps often used for handling tissue or skin. Some have teeth for grasping tougher tissue, while others are smooth for more delicate handling.
DeBakey forceps
These are atraumatic tissue forceps commonly used in vascular and general surgery. They are designed to reduce tissue damage.
Russian forceps
These are used for grasping tissue securely and are often seen in general and gynecologic procedures.
Allis clamp
Allis clamps grasp tissue firmly. Because they can be traumatic, they are often used on tissue that will be removed or where firm holding is needed.
Babcock clamp
Babcock clamps are less traumatic than Allis clamps and are commonly used for delicate tubular structures such as bowel, fallopian tubes, or appendix.
Kocher or Ochsner clamp
These have teeth and are used for grasping tough tissue securely.
Backhaus towel clamp
Used to secure drapes and sometimes tubing or cords on the sterile field.
These are used to control bleeding, clamp vessels, or temporarily occlude tissue.
Common examples:
Mosquito hemostat
A small clamp used for delicate vessels or fine dissection.
Kelly clamp
A medium-sized hemostatic clamp used frequently in many general procedures.
Crile clamp
Similar to Kelly clamps, though the serration pattern differs. Students are often expected to recognize both.
Pean clamp
A heavier clamp for larger tissue or vessels.
Rochester-Carmalt clamp
Used for larger pedicles or heavier tissue bundles. Common in OB/GYN and general surgery.
Mixter or right-angle clamp
Designed for passing around vessels or structures at an angle.
Retractors help hold tissue, muscle, or organs out of the way so the surgeon can see the operative field.
Common examples:
Army-Navy retractor
A handheld double-ended retractor commonly used in smaller incisions.
Senn retractor
Often used in superficial procedures. One end is typically smooth and the other may have small prongs.
Richardson retractor
Used for deeper retraction in abdominal or larger incisions.
Deaver retractor
A broad handheld retractor used for deeper exposure, especially in abdominal procedures.
Weitlaner retractor
A self-retaining retractor with prongs. Common in orthopedic, neuro, and general cases.
Gelpi retractor
A self-retaining retractor with pointed tips, often used in orthopedic or spine procedures.
Bookwalter retractor
A larger self-retaining retractor system often used in major abdominal surgery.
Balfour retractor
Common in open abdominal procedures.
These instruments are used to close tissue or assist with wound closure.
Common examples:
Needle holder
Needle holders are used to drive suture needles through tissue. Mayo-Hegar is one of the most common types.
Olsen-Hegar needle holder
This combines a needle holder with scissors, allowing cutting and suturing in one instrument.
Skin stapler
Used for external wound closure.
Stapling devices
Internal staplers may be used in general, thoracic, colorectal, and bariatric procedures, depending on the case.
Suture scissors
Used for trimming sutures during closure.
Students often need to know not only general instruments, but also which ones appear more often in specific specialties.
General surgery trays commonly include:
These sets support procedures such as appendectomy, cholecystectomy, hernia repair, bowel surgery, and breast procedures.
Orthopedic instruments tend to be heavier and designed for bone and large joint work.
Common examples include:
Orthopedic cases often involve trays that look very different from standard soft-tissue sets. Students should expect more hardware, heavier instruments, and specialty implants.
OB/GYN procedures often use instruments for pelvic exposure, uterine access, and tissue handling.
Common examples include:
These may appear in procedures such as D&C, hysterectomy, cesarean section, and laparoscopic gynecologic surgery.
Neuro instruments are specialized for delicate tissue, precision work, and microsurgery.
Common examples include:
These cases demand a strong understanding of delicate handling and careful instrument organization.
CVOR and thoracic procedures use highly specialized sets.
Common examples include:
These specialties often require precision instruments, longer instruments, and a high level of familiarity with vascular tissue handling.
Minimally invasive surgery uses long, narrow instruments introduced through small incisions or ports.
Common examples include:
Students should know that these cases involve both sterile instrumentation and equipment setup considerations.
One challenge in surgical technology is that instrument terminology is not always perfectly standardized in everyday conversation.
For example:
That is normal. The key is to learn the core instrument, its appearance, and its function. Over time, you will become more comfortable with regional and facility-specific naming differences.
Here are practical ways to improve retention:
It is easier to remember instruments when you understand what job they do.
Picture-based study is extremely effective because many instruments look similar until you train your eye to spot differences.
Do not try to learn 100 instruments in one sitting. Break them into categories and specialties.
Say the instrument names out loud. In the OR, you need to recognize and respond quickly.
Spend extra time on pairs students commonly confuse, such as:
If your lab or clinical site allows it, physically handling instruments can speed up recognition.
The CST exam expects a strong foundation in instrumentation, sterile technique, procedures, anatomy, and case flow. Instrument recognition is not just memorization, it connects to understanding what happens before, during, and after surgery.
When studying for the exam, focus on:
A student who understands why an instrument is used will usually remember it better than a student who only memorizes the name.
During clinicals, you will likely be asked to:
You are not expected to know everything immediately. What matters is consistent preparation, repetition, and a willingness to learn.
The more you study instruments before clinicals, the more confident and useful you will feel when cases begin moving quickly.
Students who build strong instrument knowledge often transition more smoothly into externships, clinical placements, and entry-level surgical tech roles. Employers value candidates who understand sterile processing concepts, case flow, instrumentation, and OR teamwork.
Once you are ready to explore opportunities, browse surgical tech jobs by city, state, specialty, or experience level to see which employers are hiring and what qualifications they want most.
A strong knowledge base does not just help you pass school. It helps you become the kind of surgical tech teams trust in the OR.
Learning surgical instruments takes time, repetition, and exposure. Start with the most common categories, focus on function, and add specialty sets gradually. That approach is far more effective than trying to memorize random names without context.
For surgical tech students, this knowledge supports clinical confidence and CST exam preparation. For new scrub techs, it supports faster growth on the job. And for anyone entering the field, it is one of the most practical foundations you can build.
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