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Surgical instruments are tools used in surgeries or operations to perform specific actions or achieve desired effects. They serve various purposes, such as modifying biological tissue, providing access for viewing inside the tissues and inner organs, controlling bleeding, or closing wounds.
History of Surgical Instruments
Before we delve into the details of the types and functions of surgical instruments, let’s explore the origin of surgical blades. These instruments have a long and fascinating history dating back to the Stone Age.
Early surgical instruments were crafted from flint, obsidian, or bamboo and used for procedures such as trepanning, bone setting, or cataract removal. However, surgical instruments evolved over time as medical knowledge and surgical practices have advanced to become more precise, effective, and safe.
Some surgical instruments are designed for general use in various types of surgeries, while others are specialized for certain procedures or fields of medicine.
Some Key Developments Include:
The ancient Greek and Roman physicians, such as Hippocrates and Galen, invented scalpels, forceps, scissors, and other cutting tools.
Sterilization techniques improved, and disposable blades for surgical procedure like incision were introduced in the 19th and 20th centuries with the introduction of anaesthesia and asepsis; this allowed surgeons to operate on new body parts and prevent infections.
New materials like chrome, titanium, and vanadium were discovered in the mid-20th century, enabling the production of lightweight, durable, and microsurgical instruments for delicate procedures in ophthalmology, neurology, and otology.
Innovative surgical methods like electrocautery, laser, and robotic surgery use electricity, light, and computer technology to perform minimally invasive and complex surgeries with reduced blood loss, pain, and scarring.
This progression in surgical instruments advanced as doctors learned more and did different surgeries.
Now that we’ve glimpsed into the history of surgical instruments, let’s delve into the heart of our topic.
The Three Categories Of Surgical Instruments.
Surgical instruments are like the superheroes of the operating room, each with its extraordinary power.
They fall into three main categories:
Cutting and dissecting: Think of them as the precise scalpels of surgery.
Clamping and occluding: The guardians against blood loss and leaks.
Retracting and exposing: They’re like the extended hands of the surgeon.
Each category has different types of instruments with additional features and purposes. Knowing these instruments’ names, functions, and characteristics can help surgeons, nurses, and other medical professionals use them effectively and safely.
So, let’s explore each category and some fascinating examples within them.
Cutting and Dissecting Instruments
These instruments are like the precision knives of the medical world, used to cut through skin, tissue, and suture material. Surgeons use these instruments to explore irregular growths, remove damaged or diseased tissue, or create openings for other instruments or implants.
These instruments have single or double razor-sharp edges or blades, and they can be straight, curved, or angled.
Curette: A type of scaler that has a scoop or a loop at the end used to scrape or remove tissue from inside the body, such as in the uterus or the ear. Some standard curettes are “Universal and Area specific (Gracey) curettes.”
Scissors: Whether straight or curved, they trim tissue, suture material, or dressings with finesse. Some standard scissors are “Mayo, Metzenbaum, and Iris scissors.”
Saw: A manual or powered blade with teeth used to cut through bone or hard tissue. Some common types of saws are “Gigli, Stryker, and oscillating saws.”
Clamping and Occluding Instruments
Think of these as the “holders” and “sealers” of surgery; they are used to compress, grasp, or hold any soft tissue or organ to prevent their contents from leaking or blood loss. These tools have jaws operated by handles, with some featuring locking mechanisms for stability.
They come in straight, curved, or angled shapes, and their inner jaws may have diverse patterns for improved functionality.
Forceps: Handy pincers used for grasping and holding tissue or objects. Some common types of forceps are “Allis, Babcock, and Kelly forceps.”
Hemostat: Specialized for clamping blood vessels. Common hemostats are “Crile, Mosquito, and Pean hemostats.”
Clamp: A jaw forceps used to constrict or close off hollow organs. Some common types of clamps are “Bulldog, Satinsky, and Doyen clamps.”
Retracting and Exposing Instruments
Retracting and exposing instruments help surgeons see and reach inside the body by holding tissues or organs aside. They can also be used to separate or expose the edges of a surgical incision. These instruments can either be self-retaining, meaning they stay open on their own inside a tissue or wound, or manual, meaning they need to be held open by hand.
Retractor: A single or dual-bladed device that holds tissues back to create space. Some common types of retractors are “Langenbeck, Deaver, and Richardson retractors.”
Speculum: A single or dual-bladed tool with a handle that widens openings like the vagina or ear canal. Some common types of specula are “Graves, Sims, and Otoscope speculums.”
Spatula: Helps expose tissues with its flat design. Some common spatulas are “Desmarres, Senn, and Freer spatulas.”