A surgical instrument is a medical device used during surgery to perform specific actions, such as cutting, modifying tissue, or providing access for viewing. Over time, a broad spectrum of tools has been developed—some for general surgical use, others tailored to specialized procedures. Classification systems help surgeons understand an instrument's function and appropriate usage. Innovation continues to drive the development of more precise, safer, and more effective instruments for modern surgery.
History Surgical instruments have evolved alongside advances in medical science and surgical technique. Early tools were often adapted from everyday implements but were later refined for better precision and safety. Two key milestones shaped modern surgical tools: In the early 20th century, the advancement from antiseptic to aseptic surgery led to widespread adoption of sterilizers, sterile gauze, and cotton. Instrument handles transitioned from wood or ivory to metal, enabling effective sterilization. Simpler, one-piece designs improved safety and usability. During World War II, hand surgery emerged as a subspecialty. Many of the tools developed for this purpose are still in use today, often named after their innovators. Individual tools have diverse history development. Below is a brief history of the inventors and tools created for five commonly used surgical tools.
Scissors Mayo scissors, developed by one of the Mayo brothers in the late 19th century, feature semi-blunt ends and either straight or curved blades—the former for superficial tissues, the latter for thicker tissue. Metzenbaum scissors, designed by Myron Metzenbaum, are characterized by lighter construction and longer handles, suitable for delicate procedures like tonsillectomy (the surgical removal of the tonsils).
Knife to scalpel to electrocautery Early cutting tools were rudimentary, made from materials like sharpened leaves or bamboo. Later, scalpels were developed in medieval Muslim and European medical traditions. In 1904, King Gillette introduced a safety razor with disposable blades. A decade later, Morgan Parker patented a disposable scalpel blade that locked onto a metal handle—offering both durability and sterility. Though cautery techniques existed since antiquity, electrical cautery (diathermy) became practical in the 18th century. William Stewart Halsted pioneered the technique, which would later evolve into modern cautery. In 1900, physician Joseph Rivière used electricity to treat a malignant hand ulcer. In 1907, Karl Franz Nagelschmidt applied diathermy to tumors and hemorrhoids. William T. Bovie, working with Dr. Harvey Cushing, developed a device capable of cutting and coagulating tissue simultaneously, laying the foundation for modern electrosurgery.
Retractors Before modern retractors, surgeons often used their fingers to hold tissues aside. Around 1000 AD, Albucasis described specialized hooks for procedures like circumcision and tracheostomy. In the 19th century, Eugène-Louis Doyen introduced self-retaining abdominal retractors to improve surgical exposure in gynecological and abdominal operations. Nicholas Senn, an advocate of antiseptic technique, created a retractor with a smooth surface and a double-ended design intended to reduce infection. In 1905, Franz Weitlaner developed a self-retaining finger-ring retractor with a cam lock, enabling single-handed use—its design inspired many modern variants like Adson-Beckman and Chung retractors.
Forceps Back in the 6th century BC, laboring caused a high mortality rate for both mothers and newborns due to the hours or days of the lasting delivery process. This problem led to the establishment of forceps-assisted delivery in the 16th century by the Chamberlen family. Forceps were later developed over several centuries by leading obstetricians of the time including James Simpson, Neville Barnes, and Christian Kielland. Michael Ellis DeBakey invented one of the most common and well-known DeBakey forceps. The vascular atraumatic forceps (DeBakey) were widely used for grasping vascular tissue and causing minimal damage to the vessels. This invention led to the development of the Dacron aortic graft for the repair of aortic aneurysms. Around the mid-1900s, Alfred Washington Adson, a pioneer in neuroscience at Mayo Clinic, invented Adson forceps that allows the lifting and removal of neural tissue.
Hemostat/clamp Hemostats are forceps that aim to obliterate the lumen of vessels and to obtain adherence to the crushed surfaces and vascular hemostasis. Originally, this notion of crushing did not exist and arterial catch forceps simply clamped vessels temporarily prior to ligature or cautery. In 1867, Eugene Koeberle, who accidentally found arterial forceps with a catch closure came away spontaneously without the need for ligature, and invented “pince hémostatique,” which have pin and hole catches. In 1882, the Kocher clamp was created by Emil Theodor Kocher, who significantly contributed to thyroidectomies (removal of all or a part of the thyroid gland) and decompressive craniotomy. This invention decreases the risk of contamination while cutting dense tissue. Later, Dr. William Henry Welch and William Stewart Halsted contributed to the invention of clamps and Halsted-Mosquito Hemostats, which were used to clamp small blood vessels. Kelly clamp, invented by Howard Kelly, has similar functions but it can clamp larger vessels due to the slightly larger jaw. Accordingly, the nomenclature of surgical instruments follows certain patterns, such as a description of the action it performs (for example, scalpel, hemostat), the name of its inventor(s) (for example, the Kocher forceps), or a compound scientific name related to the kind of surgery (for example, a tracheotomy is a tool used to perform a tracheotomy).
Classification There are several classes of surgical instruments:
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