A needle holder, also called needle driver or needle forceps, is a surgical instrument similar to a hemostat, used by doctors and surgeons to hold and push a suturing needle when performing wound closure, ligation and other surgical procedures that require re-anastomosis.
Being specialized forceps, the components of a typical needle holder are the jaws (often reinforced with tungsten carbide inserts), the hinged joint and the handles (typically with finger rings at the end). Most needle holders also have a ratchet mechanism that locks the handles together and clamps the needle firmly between the jaws, allowing the user to maneuver the needle through various tissues without having to keep squeezing the grip. To maintain a firm grip on the needle, the jaws are often textured and short compared to the handles (increasing the mechanical advantage using the principle of a lever).
Most needle holders are designed to be gripped with the fingers and palm like scissors. However, some are designed for a tweezers-like grip to allow finer, more precise movements around delicate structures or narrow spaces. An example of such is the Castroviejo needle holder (named after Spanish American eye surgeon Ramón Castroviejo), which is commonly used in eye surgery, microsurgery and dental surgery.
A scalpel, lancet, or bistoury is a small and extremely sharp bladed instrument used for surgery, anatomical dissection, podiatry and various handicrafts. A lancet is a double-edged scalpel.
A hemostat is a tool used to control bleeding during surgery. Similar in design to both pliers and scissors, it is used to clamp exposed blood vessels shut.
Pliers are a hand tool used to hold objects firmly, possibly developed from tongs used to handle hot metal in Bronze Age Europe. They are also useful for bending and physically compressing a wide range of materials. Generally, pliers consist of a pair of metal first-class levers joined at a fulcrum positioned closer to one end of the levers, creating short jaws on one side of the fulcrum, and longer handles on the other side. This arrangement creates a mechanical advantage, allowing the force of the grip strength to be amplified and focused on an object with precision. The jaws can also be used to manipulate objects too small or unwieldy to be manipulated with the fingers.
Forceps are a handheld, hinged instrument used for grasping and holding objects. Forceps are used when fingers are too large to grasp small objects or when many objects need to be held at one time while the hands are used to perform a task. The term "forceps" is used almost exclusively in the fields of biology and medicine. Outside biology and medicine, people usually refer to forceps as tweezers, tongs, pliers, clips or clamps.
Tweezers are small hand tools used for grasping objects too small to be easily handled with the human fingers. Tweezers are thumb-driven forceps most likely derived from tongs used to grab or hold hot objects since the dawn of recorded history. In a scientific or medical context, they are normally referred to as just "forceps", a name that is used together with other grasping surgical instruments that resemble pliers, pincers and scissors-like clamps.
Phacoemulsification is a cataract surgery method in which the internal lens of the eye which has developed a cataract is emulsified with the tip of an ultrasonic handpiece and aspirated from the eye. Aspirated fluids are replaced with irrigation of balanced salt solution to maintain the volume of the anterior chamber during the procedure. This procedure minimises the incision size and reduces the recovery time and risk of surgery-induced astigmatism.
A surgical instrument is a medical device for performing specific actions or carrying out desired effects during a surgery or operation, such as modifying biological tissue, or to provide access for viewing it. Over time, many different kinds of surgical instruments and tools have been invented. Some surgical instruments are designed for general use in all sorts of surgeries, while others are designed for only certain specialties or specific procedures.
A Pennington clamp, also known as a Duval clamp, is a surgical clamp with a triangular eyelet. Used for grasping tissue, particularly during intestinal and rectal operations. Also used in some OB/GYN procedures, particularly caesarian section. Under the name 'Duval clamp' they are occasionally used much like a Foerster clamp to atraumatically grasp lung tissue. The clamp is named after David Geoffrey Pennington, an Australian surgeon who is a pioneer of microsurgeries.
A retractor is a surgical instrument used to separate the edges of a surgical incision/wound or to hold away certain organs and tissues so that body parts underneath may be accessed during surgical operations.
Mohs surgery, developed in 1938 by a general surgeon, Frederic E. Mohs, is microscopically controlled surgery used to treat both common and rare types of skin cancer. During the surgery, after each removal of tissue and while the patient waits, the tissue is examined for cancer cells. That examination dictates the decision for additional tissue removal. Mohs surgery is the gold standard method for obtaining complete margin control during removal of a skin cancer using frozen section histology. CCPDMA or Mohs surgery allows for the removal of a skin cancer with very narrow surgical margin and a high cure rate.
There are many different surgical specialties, some of which require very specific kinds of surgical instruments to perform.
Dental instruments are tools that dental professionals use to provide dental treatment. They include tools to examine, manipulate, treat, restore, and remove teeth and surrounding oral structures.
A surgical suture, also known as a stitch or stitches, is a medical device used to hold body tissues together and approximate wound edges after an injury or surgery. Application generally involves using a needle with an attached length of thread. There are numerous types of suture which differ by needle shape and size as well as thread material and characteristics. Selection of surgical suture should be determined by the characteristics and location of the wound or the specific body tissues being approximated.
In medicine, the term cheesewiring or cheesewire effect describes any process in which cells or intercellular matrix are dissected or extruded either by the material being pressed through a taut element, or by the tension of a taut element pulling through tissue. The procedure is typically conducted in a surgical setting.
Ramón Castroviejo Briones was a Spanish and American eye surgeon remembered for his achievements in corneal transplantation.
An end effector is the device at the end of a robotic arm, designed to interact with the environment. The exact nature of this device depends on the application of the robot.
Surgical scissors are scissors specially manufactured as surgical instruments, typically used for cutting sutures, dressings, and cutting and dissecting biological tissue. Surgical scissors are usually made of surgical steel. Some have tungsten carbide reinforcements along their cutting edges, the hardness of which allows manufacturers to create sharper and more durable edges.
Mayo scissors are a type of surgical scissor, often used in the cutting of fascia.
A bulldog forceps, clamp or serrefine is a type of forceps which is used in surgery. It has serrated jaws and a spring action so that it will grip and hold sutures, tissues or vessels. The spring may be weak or the jaws sheathed in a soft material so that the item being gripped is not crushed too severely.
Ancient Roman surgical practices developed from Greek techniques. Roman surgeons and doctors usually learned through apprenticeships or studying. Ancient Roman doctors such as Galen and Celsus described Roman surgical techniques in their medical literature, such as De Medicina. These methods encompassed modern oral surgery, cosmetic surgery, sutures, ligatures, amputations, tonsillectomies, mastectomies, cataract surgeries, lithotomies, hernia repair, gynecology, neurosurgery, and others. Surgery was a rare practice, as it was dangerous and often had fatal results. To perform these procedures, they used tools such as specula, catheters, enemas, bone levers, osteotomes, phlebotomes, probes, curettes, bone drills, bone forceps, cupping vessels, knives, scalpels, scissors, and spathas.