| stereotactic needle biopsy | Biopsy done while breast is compressed under mammography. A series of pictures locate the lesion, and a radiologist enters information into a computer. The computer calculates information and positions a needle to remove the finding. A needle is inserted into the lump, and a piece of tissue is removed and sent to the lab for analysis. May be referred to as mammotest or core biopsy. (09 Oct 1997) |
|---|---|
| stop-needle | A surgical needle, with the eye at the tip, the shank of which has a projecting shelf to arrest the needle when it has passed the desired distance through the tissues. (05 Mar 2000) |
| Deschamps needle | A needle with a long shaft for passing sutures in the deep tissues. (05 Mar 2000) |
| devil's darning-needle | <zoology> A dragon fly. See Darning needle, under Darn. Source: Websters Dictionary (01 Mar 1998) |
| touch-needle | <chemistry> A small bar of gold and silver, either pure, or alloyed in some known proportion with copper, for trying the purity of articles of gold or silver by comparison of the streaks made by the article and the bar on a touchstone. Source: Websters Dictionary (01 Mar 1998) |
| Emmet's needle | <instrument, surgery> A strong needle with the eye in the point, having a wide curve, and set in a handle, used to pass a ligature around an undissected structure. (05 Mar 2000) |
| Tuohy needle | A needle with a lateral opening at the distal end, designed to cause a catheter passing through the needle's lumen to exit laterally at a 45 |
| exploring needle | A strong needle with a longitudinal groove, which is thrust into a tumour or cavity to determine the presence of fluid, the latter escaping externally along the groove. (05 Mar 2000) |
| knife needle | A very narrow, needle-pointed knife used in discission of a cataract. Synonym: cataract needle. (05 Mar 2000) |
| fine needle aspiration | Procedure to remove cells or fluid from tissues using a needle with an empty syringe. Cells or breast fluid is extracted by pulling back on plunger and then is analysed by a physician. (09 Oct 1997) |
| fine needle biopsy | Removal of tissue or suspensions of cells through a small needle. (05 Mar 2000) |
| Francke's needle | A small lancet-shaped spring-activated needle, used to evacuate a small effusion of blood. (05 Mar 2000) |
| Frazier's needle | A needle for draining lateral ventricles of brain. (05 Mar 2000) |
| lumbar puncture needle | A needle, provided with a stylet, for entering the spinal canal or cisterna magna, with a bore of at least 1 mm and 40 mm or more in length. (05 Mar 2000) |
| acid etching, dental | Pretreatment of tooth surfaces with etching agents, usually phosphoric acid, to increase the adhesion of various resin systems. (12 Dec 1998) |