WordNet

an extractor consisting of a pair of pincers used in medical treatment (especially for the delivery of babies)
impose or inflict forcefully; "The military government clamped a curfew onto the capital"
a device (generally used by carpenters) that holds things firmly together (同)clinch
fasten or fix with a clamp; "clamp the chair together until the glue has hardened"
do forcibly; exert force; "Dont force it!"
(physics) the influence that produces a change in a physical quantity; "force equals mass times acceleration"
physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man" (同)forcefulness, strength
group of people willing to obey orders; "a public force is necessary to give security to the rights of citizens" (同)personnel
a group of people having the power of effective action; "he joined forces with a band of adventurers"
a powerful effect or influence; "the force of his eloquence easily persuaded them"
force into or from an action or state, either physically or metaphorically; "She rammed her mind into focus"; "He drives me mad" (同)drive, ram
impose urgently, importunately, or inexorably; "She forced her diet fads on him" (同)thrust

PrepTutorEJDIC

(外科・歯科用)かん子(し),ピンセット
かすがい,締めくぎ,万力 / {動}〈他〉 / …'を'かすがい(万力など)で締めつける
(土をかぶせて貯蔵してある)じゃがいも(根菜)の山
ピンセット
〈U〉(物理的な)『力』,勢い;体力 / 〈U〉『暴力』,腕ずく / 〈C〉《集合的に》(共通の目的・活動のための)集団,隊 / 〈C〉《しばしば複数形で》『軍隊』,部隊 / 〈C〉(社会的)勢力;有力な人物 / 〈U〉(精神あるいは知性の)力 / 〈U〉『影響力』,効果 / 〈U〉(言葉の)意味,真意 / 〈人〉‘に'『強いる』,無理を言う / (…から)…‘を'力ずくで手に入れる《+『名』+『from』(『out of』)+『名』》 / …‘を'むりに押し出す / (容器などに)…‘を'むりに押し込む《+『名』+『into』+『名』》 / (人に)…‘を'『押しつける』《+『名』+『on』(『upon』)+『名』〈人〉》 / 〈植物〉‘を'促成栽培する

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/05/28 19:13:08」(JST)

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Plastic forceps are intended to be disposable.

Forceps (plural forcipes) 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 within the medical field. Outside medicine, people usually refer to forceps as tweezers, tongs, pliers, clips or clamps.

'Forceps' can be used as both the singular and plural form of the word. (Example: "I need a forceps.") Also, it is not referred to as a "pair" as one refers to a "pair of scissors". Etymologically, the word derives from the Latin forca, meaning a snare or trap.

Mechanically, forceps employ the principle of the lever to grasp and apply pressure.

Surgical forceps are commonly made of high-grade carbon steel, which ensures they can withstand repeated sterilization in high-temperature autoclaves. Lower quality steel is used in forceps made for other uses. Some forceps, intended to be used once and then discarded, are made of plastic. The invention of surgical forceps is attributed to Stephen Hales.^[1]

There are two basic types of forceps: non-locking (often called 'thumb forceps' or 'pick-ups') and locking, though these two types come in dozens of specialized forms for various uses. Non-locking forceps also come in two basic forms: hinged at one end, away from the grasping end (colloquially such forceps are called tweezers) and hinged in the middle, rather like scissors. Locking forceps are almost always hinged in the middle, though some forms place the hinge very close to the grasping end. Locking forceps use various means to lock the grasping surfaces in a closed position to facilitate manipulation or to independently clamp, grasp or hold an object.

Thumb forceps

Blunt-nosed thumb forceps with serrated tips for increased grip.

Thumb forceps are commonly held between the thumb and two or three fingers of one hand, with the top end resting on the first dorsal interosseous muscle at the base of the thumb and index finger. Spring tension at one end holds the grasping ends apart until pressure is applied. This allows one to quickly and easily grasp small objects or tissue to move and release it or to grasp and hold tissue with easily variable pressure. Thumb forceps are used to hold tissue in place when applying sutures, to gently move tissues out of the way during exploratory surgery and to move dressings or draping without using the hands or fingers.

Adson tissue forceps. Note the 1×2 "mouse's teeth" on the lower tip.

Thumb forceps can have smooth tips, cross-hatched tips or serrated tips (often called 'mouse's teeth'). Common arrangements of teeth are 1×2 (two teeth on one side meshing with a single tooth on the other), 7×7 and 9×9. Serrated forceps are used on tissue; counter-intuitively, teeth will damage tissue less than a smooth surface because one can grasp with less overall pressure. Smooth or cross-hatched forceps are used to move dressings, remove sutures and similar tasks.

Locking forceps

Locking forceps, sometimes called clamps, are used to grasp and hold objects or tissue. When they are used to compress an artery to forestall bleeding they are called hemostats. Another form of locking forceps is the needle holder, used to guide a suturing needle through tissue. Many locking forceps use finger loops to facilitate handling (see illustration, below, of Kelly Forceps). The finger loops are usually grasped by the thumb and middle or ring fingers, while the index finger helps guide the instrument.

The most common locking mechanism is a series of interlocking teeth located near the finger loops. As the forceps are closed, the teeth engage and keep the instrument's grasping surfaces from separating. A simple shift of the fingers is all that is needed to dis-engage the teeth and allow the grasping ends to move apart. Forceps are also used for surgery.

Kelly forceps

Kelly forceps, shown closed and open

Kelly forceps are a type of hemostat usually made of stainless steel. They resemble a pair of scissors with the blade replaced by a blunted grip. They also feature a locking mechanism to allow them to act as clamps. Kelly forceps may be floor grade (regular use) and as such not used for surgery. They may also be sterilized and used in operations, in both human and veterinary medicine. They may be either curved or straight. In surgery, they may be used for occluding blood vessels, manipulating [tissues], or for assorted other purposes. They are named for Howard Atwood Kelly, M.D., first professor of obstetrics and gynecology at Johns Hopkins. The "Mosquito" variant of the tool is more delicate and has smaller, finer tips. Other varieties with similar, if more specialized, uses are Allis clamps, Babcocks, Kochers, Carmalts, and tonsils; all but the last bear the names of the surgeons who designed them.

Other medical forceps

Other types of forceps include:

Magill forceps, which are angled forceps used to guide a tracheal tube into the larynx or a nasogastric tube into the esophagus under direct vision.^[2] It is also used to remove foreign bodies.^[2]
Anesthesia forceps
Artery forceps
Atraumatic forceps
Biopsy forceps
Bone-cutting forceps
Bone-holding forceps
Bulldogs forceps
Catheter forceps
Cilia forceps
Curettes forceps
Cushing forceps
Debakey forceps
Dermal forceps & nippers
Dressing forceps
Ear forceps
Eye forceps
Gallbladder forceps
Hemostatic forceps
Hysterectomy forceps
Intestinal forceps
Microsurgery forceps
Nasal forceps
Obstetrical forceps
Postmortem forceps
Splinter forceps
Sponge forceps
Sterilizer forceps
Suture sundries forceps
Tenaculum forceps
Thoracic forceps
Thoracic surgical forceps
Thumb forceps
Tissue forceps
Tongue forceps
Tooth extracting forceps
Tubing forceps
Uterine forceps
Vulsellum forceps
Wire cutting forceps

References

^ Scientific American inventions and discoveries By Rodney P. Carlisle
^ ^a ^b Magill forceps in Farlex medical dictionary, citing Mosby's Medical Dictionary, 8th edition.

UpToDate Contents

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1. 手術的経膣分娩 operative vaginal delivery
2. 後頭後位の胎児のマネージメント management of the fetus in occiput posterior position
3. 婦人科外科手術のための手術器具 surgical instruments for gynecologic surgery
4. Fetal extraction at cesarean delivery
5. 胎児の骨盤位分娩 delivery of the fetus in breech presentation

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Viability of maxillary bone harvesting by using different osteotomy techniques. A pilot study.

Atari M, Chatakun P, Ortiz O, Manes A, Gil-Recio C, Fabregat Navarro M, Garcia-Fernandez DA, Caballe-Serrano J, Mareque J, Hernandez-Alfaro F, Ferres Padro E, Giner-Tarrida L.SourceLaboratory of Regenerative Medicine, Faculty of Dentistry, International University of Catalonia, Barcelona, Spain.
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PMID 21972096

Exploring the possibility of early cataract diagnostics based on tryptophan fluorescence.

Gakamsky DM, Dhillon B, Babraj J, Shelton M, Smith SD.SourceRoyal Society Industry Fellow at Edinburgh Instruments, Livingston, EH54 7DQ, UK.
Journal of the Royal Society, Interface / the Royal Society.J R Soc Interface.2011 Nov 7;8(64):1616-21. Epub 2011 Apr 20.
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PMID 21508010

False-Positive F-18 FDG PET/CT From Foreign Body Reaction on Anterior Chest Wall After Endoscopic Total Thyroidectomy via Axillo-Breast Approach for Thyroid Cancer: Two Case Reports.

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Clinical nuclear medicine.Clin Nucl Med.2011 Nov;36(11):1036-8.
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PMID 21975398

Japanese Journal

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本郷一博,後藤哲哉,柿澤幸成,小山淳一
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NAID 110008441454