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Cannula
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Chapter 56
Assisting with surgeries
| Question | Answer |
|---|---|
| Abscesses | localized collections of pus that may be under the skin or deep within the body and that cause tissue destruction |
| Cannula | a rigid tube that surrounds a blunt trocar or a sharp, pointed trocar inserted into the body; through the cannula, depending on where it was inserted |
| Curettage | the act of scraping a body cavity with a surgical instrument, such as a curette |
| Dilation | the opening or widening of the circumference of a body orifice with a dilating instrument |
| Dissect | to cut or separate tissue with a cutting instrument or scissors |
| Fascia | a sheet or band of fibrous tissue deep in the skin that covers muscles and the body organs |
| Obturator | a metal rod with a smooth, rounded top that is placed in hollow instruments to reduce injury to body tissues during insertion |
| Patency | open condition of a body cavity or canal |
| Stylus | a metal probe that is inserted into or passed through a catheter, needle, or tube used for clearing purposes or to facilitate passage into a body orifice |
| Classifications of surgical instruments | cutting, grasping, retracting, probing/dilating |
| Bandage Scissors | blunt probe tip, easily inserted under bandages and dressing, used to remove bandages and dressings |
| Suture scissors | blade has beak or hook to slide under sutures used to remove sutures |
| Hemostat forceps | curved or straight used to clamp small vessels or hold tissue |
| Needle Holders | jaws are shorter and stronger that hemostat jaws used to grasp suture needle firmly |
| Splinter Forceps | design and construction vary fine top foreign object retrieval |
| Adson forceps | used to grasp tissue and in suturing |
| Plain Thumb (dressing) forceps | used to insert packing into or remove objects from deep cavities |
| Towel forceps (clamps) | sharp or at traumatic tips used to hold drapes in place |
| Allis tissue forceps | used to grasp tissue, muscle, or skin surrounding a wound |
| Foerster sponge forceps | used to hold gauze squares to sponge the surgical site |
| Transfer forceps | sterile transfer forceps may be used to arrange items on a sterile tray |
| bayonet forceps | smooth tipped used to insert packing into or remove objects from the nose and ear |
| Plain tip tissue forceps | used to grasp tissue, muscle, or skin surrounding the wound |
| Senn retractor | flat end is blunt used to retract small incisions or to secure a skin edge for suturing |
| Probes | smooth, have a grooved director used to find foreign bodies embedded in dermal tissue or muscle or to trace a wound tract |
| Trocars and obsturators | sharply pointed stylus contained in a cannula used to withdraw fluids from cavities or fro draining irrigation with a catheter |
| Specula | valves are spread apart, dilating the opening used to open or distend a body orifice or cavity |
| Nasal specula | used to spread the nostrils for examination |
Created by:
iceheart