Surgical Forceps Types – A Complete Guide for Medical Professionals
Surgical forceps are among the most fundamental and frequently used instruments in the operating room. These hand-held, tweezer-like tools serve as extensions of the surgeon's fingers, enabling precise manipulation of tissues, needles, and sutures with a level of accuracy and control that bare hands cannot achieve. Whether performing delicate vascular anastomoses, closing a fascial defect, or managing a hemorrhaging vessel, the correct forceps selection directly impacts surgical outcomes, tissue trauma, and operative efficiency.
This comprehensive guide examines the diverse categories of surgical forceps, their design characteristics, clinical applications, and best practices for selection and handling. Understanding these distinctions is essential for surgeons, surgical technologists, nurses, and other medical professionals involved in operative care.
Fundamental Classifications: Locking vs. Non-Locking
Surgical forceps are broadly divided into two primary categories based on their mechanism of action: non-locking (thumb forceps) and locking (ratcheted forceps or clamps).
Non-Locking Forceps (Thumb Forceps)
Non-locking forceps, often called "pick-ups" or "thumb forceps," are held like a pen or tweezer between the thumb and fingers. The surgeon controls the gripping pressure manually, allowing dynamic modulation of force. These instruments are designed for grasping, retracting, and manipulating tissue during dissection and suturing. They are available in a wide range of tip configurations, from smooth and atraumatic to sharply toothed for secure grip on tough tissues.
Locking Forceps (Ratcheted Clamps)
Locking forceps, commonly referred to as clamps or hemostats, feature a ratchet mechanism near the finger rings that allows the jaws to be locked in a closed position. This design enables sustained, hands-free compression of vessels or tissue bundles, making them indispensable for hemostasis and tissue holding during extended procedures. The ratchet typically offers multiple locking positions, allowing graduated compression.
Non-Locking Forceps: Types and Applications
Non-locking forceps are categorized primarily by their tip design, which determines their suitability for different tissue types and surgical tasks.
Atraumatic (Smooth) Forceps
Atraumatic forceps lack teeth and are designed to grasp delicate tissues without causing crushing or perforation. The most widely used of these is the DeBakey forceps, which features two sets of parallel longitudinal serrations on one jaw and a single line of serrations on the opposing jaw. This configuration provides a secure yet gentle grip, making DeBakey forceps the preferred choice for vascular, thoracic, and intestinal surgery. They are also commonly used for handling suture needles and delicate fascial planes.
The Cooley forceps is similar to the DeBakey but features finer, more delicate jaws, often used in pediatric or microvascular procedures. Russian forceps possess a broad, rounded tip with a grooved perimeter and concave center, distributing pressure over a larger surface area and further reducing tissue trauma. Gerald forceps are fine-tipped, non-toothed instruments specifically designed for vascular surgery and other procedures requiring extreme precision with delicate structures.
Toothed Forceps (Rat-Tooth)
Toothed forceps feature interlocking teeth at the tip that penetrate tissue to provide a secure hold with minimal digital pressure. The number and arrangement of teeth vary, typically described as "1x2," "2x3," or "3x4" configurations.
The Adson forceps is a small, lightweight instrument with a 1x2 interlocking tooth pattern and broad thumb grasp surfaces for precise control. It is ideal for grasping thin skin and light fascial planes, particularly during plastic surgery and wound closure.
The Brown-Adson forceps features two longitudinal rows of fine, intermeshing teeth, providing a broader and more delicate grip than the standard Adson. This design facilitates grasping of suture needles and superficial delicate tissues.
For heavier tissues such as skin and fascia, the Standard Tissue Forceps (also called "rat-tooth" forceps) offers a more aggressive grip with larger interlocking teeth. These are available in various lengths and are commonly used for manipulating skin edges during suturing. Ferris Smith (Bonnie/Bickle) forceps are heavy toothed instruments designed specifically for closing fascia.
Specialty Non-Locking Forceps
Several specialized non-locking forceps exist for niche applications. Alligator forceps feature narrow articulating tips at the end of variably sized shanks, enabling retrieval of objects from restricted sites such as the ear canal or nasal cavity. Microsurgical forceps include jeweler's forceps, vessel dilators, dissecting forceps with fine sharp tips, and tying forceps with elevated platforms for suture manipulation during knot tying. Bayonet forceps have angled handles that offset the surgeon's hand from the line of vision, making them valuable in nasal and neurosurgery where visibility is constrained.
Locking Forceps: Types and Applications
Locking forceps serve distinct functions based on their jaw design, size, and intended application. They are broadly classified into hemostatic clamps, tissue-holding forceps, and specialty clamps.
Hemostatic Forceps
Hemostatic forceps are crushing instruments designed to collapse blood vessels until hemostasis is achieved through ligation or electrocautery. They feature transverse grooves on the inner jaw surface to increase tissue purchase.
The Halsted Mosquito forceps is the smallest hemostatic clamp, available in 9 cm and 12.5 cm lengths with straight or curved jaws. It is designed for use on small vessels and delicate tissue. The Kelly forceps is a medium-sized clamp with transverse grooves restricted to the distal half of the jaw. The Crile forceps is similar in size to the Kelly but features grooves extending the entire jaw length. Both are used for manipulating medium to large vessels.
For larger tissue bundles and vessels, the Rochester-Pean forceps offers deep transverse grooves over the entire jaw surface and is available in lengths from 14 cm to 30 cm. The Rochester-Carmalt forceps features longitudinal grooves with horizontal cross-striations at the tips, a design specifically developed to facilitate removal during pedicle ligation. The Rochester-Ochsner forceps combines transverse grooves with 1x2 interdigitating teeth at the jaw tip to prevent tissue slippage, though it is considered traumatic and should be reserved for tissue that will be removed.
Tissue-Holding Forceps
These locking forceps are designed to grasp and retract tissues for prolonged periods during surgery.
The Allis forceps features multiple interlocking fine teeth along the jaw tips, providing a secure hold on firm tissues such as fascia and skin. However, this design is traumatic and should be restricted to tissue that is being excised or will not be returned to the body.
The Babcock forceps offers a less traumatic alternative, with curved triangular tips that meet to pinch tissue without penetrating it. The grasping surface consists of longitudinal grooves, making it suitable for holding delicate structures such as bowel or the appendix during appendectomy.
The Kocher (Ochsner) forceps is a heavy instrument with large interlocking teeth, used for retracting muscle and fascia. The Littlewood forceps features blunt-ended teeth and is commonly used for grasping tough tissues during umbilical access for laparoscopic surgery.
Pennington (Duval) forceps have triangular tips similar to Babcock forceps but are not curved, while Barrett Tenaculum forceps feature sharp pointed tips and are often used for cervical or uterine retraction.
Specialty Locking Forceps
The Right Angle Forceps (also known as Mixter, Gemini, or Lahey forceps) is a ratcheting clamp that forms a right angle, making it invaluable for clamping and dissecting in deep spaces and passing ligatures around nerves or tendons.
Tonsil (Schnidt) forceps are large serrated clamps with a slight curve at the tip and shorter jaws than Rochester-Pean forceps. They are used to pass ties in deep spaces and to create passages for drains.
Foerster Sponge forceps feature ringed tips designed to hold gauze sponges for mopping the surgical site. Towel clamps (such as Backhaus or Lorna) secure surgical drapes to maintain the sterile field, with penetrating or non-penetrating designs available.
Design Considerations and Selection Criteria
Selecting the appropriate forceps for a given task requires consideration of multiple factors including tissue type, depth of the surgical field, required holding security, and acceptable trauma level.
Tip Design and Tissue Trauma
The fundamental trade-off in forceps selection is between security of grip and tissue trauma. Toothed forceps provide a secure hold with less digital pressure but cause punctate trauma. Smooth, serrated forceps distribute pressure more evenly and are appropriate for delicate tissues. The choice depends on whether the tissue will be removed, repaired, or simply manipulated temporarily.
Length and Reach
Forceps are available in lengths ranging from 9 cm for superficial work to 30 cm or more for deep cavity access. Longer instruments provide necessary reach but reduce tactile feedback and require greater care to avoid inadvertent tissue injury.
Material and Construction
Surgical forceps are typically manufactured from surgical-grade stainless steel, with martensitic steel commonly used for forceps requiring high hardness and wear resistance. Quality instruments undergo passivation to enhance corrosion resistance, and surface finishes are typically matte or satin to minimize glare under operating lights.
Handle Configuration
Finger ring handles provide the most secure grip and are standard on locking forceps. Thumb forceps feature flat or spring handles that are held between the thumb and fingers. Bayonet-style handles offset the hand from the visual axis, improving visibility in confined spaces.
Best Practices in Forceps Handling and Safety
Proper handling of surgical forceps is essential for both surgical efficacy and safety.
Intraoperative Handling
When passing forceps on the sterile field, the surgical technologist should look at the tip to ensure the correct instrument is being provided for the intended tissue. Forceps should be passed with the tip directed toward the surgeon's hand in a controlled manner. When used with a needle holder, a forceps is always passed alongside the suture for tissue approximation and needle manipulation.
Sterile Field Organization
Forceps should be paired on the back table and nested within each other. Both forceps of a pair should be brought to the Mayo stand together. Maintaining paired instruments facilitates efficient exchange and reduces the risk of dropping or losing instruments during critical moments.
Inspection and Maintenance
Before use, forceps should be inspected for alignment of tips, smooth ratchet function (on locking forceps), and absence of cracks or corrosion. Damaged instruments should be removed from service. After use, forceps require thorough cleaning, including ultrasonic treatment to remove debris from serrations and hinges, followed by appropriate sterilization.
Conclusion
Surgical forceps represent a sophisticated family of instruments, each design element reflecting specific functional requirements. From the atraumatic DeBakey forceps essential for vascular anastomosis to the aggressive Allis forceps used for securing fascia, the diversity of forceps available reflects the complexity of modern surgery. Mastery of forceps selection and handling is a fundamental competency for all surgical professionals, directly influencing tissue outcomes, operative efficiency, and patient safety. By understanding the distinctions between locking and non-locking designs, toothed and smooth tips, and the myriad specialty configurations available, medical professionals can ensure optimal instrument selection for every surgical scenario.