-
scissors
surgical instruments used to cut, incise, and/or dissect tissue
-
osteotomes
chisel-like instruments used to cut or shave bone
-
chisels
wedge-shaped instruments used to cut or shape bone
-
rangeurs
surgical instruments used to cute or bite away at bone and tissue
-
forceps
surgical instruments used to grasp
-
hemostatic forceps
- surgical instruments used to control flow of blood
- clamp and occlude
-
needle holders
surgical instruments designed to drive suture needle to close or rejoin a wound or surgical site
-
martensitic (stainless steel)
- this metal is also known as 400 series stainless steel
- it is magnetic, and may be heat-hardened
-
retractors
surgical instruments primarily used to move tissues and organs to keep them exposed throughout surgery
-
cannulas
- surgical instruments with a hollow barrel (or lumen) through their center.
- cannulas are often inserted for drainage
-
rib spreaders
a retractor used to expose the chest
-
suction devices
surgical instruments used to extract blood from a surgical site
-
astenitic (stainless steel)
- this metal is also known as 300 series stainless steal.
- it is non-magnetic, cannot be heat-hardened, and is more corrosion-resistant than martensitic stainless steel
-
serrations
parallel grooves in the jaws of surgical instruments
-
rachet
the part of a surgical instrument that "locks" the handles in place
-
passivation
a chemical process applied during instrument manufacture that provides a corrosion-resistant finish by forming a thin transparent oxide film
-
instruments produced with 400 series: martensitic
- scissors
- osteotomes
- chisels
- rongeurs
- forceps
- needle holders
-
instruments produced with 300 series: austenitic
- retractors
- cannulas
- rib spreaders
- suction devices
-
first step in manufacturing a surgical instrument is to forge the material to create a stamp of its rough outline from a heated bar of...
stainless steel
-
after forging is completed...
the instrumentt must be fround and milled
-
-
partial serrations
kelly hemostat
-
2 common types of forceps:
- hartman mosquito 3.5"
- halsted mosquito 5"
-
tungsten carbide jaws
jaws made of this metal are typically preferred because they are harder and last longer, they grip the needle more firmly, and they can be replaced
-
2 most common needleholder designs
- mayo-hegar
- crile-wood
- crile-wood is narrower than the mayo-hegar
-
primary function of tissue foreceps
- grasping and holding
- manipulate tissue
-
other names for tissue forceps:
- rat tooth
- brown forceps
- pickups
-
dressing forceps are identical tissue forceps except
- they have serrations rather than teeth at the distal end.
- primary function: manipulate tissue and pack surgical site
-
primary function of retractors is to
- move tissue aside for exposure and visualization of the surgical site
- can be hand held, self retraining, or table mounted
-
common self retaining retractors
- weitlaner
- gelpi
- beckman-adson
-
standard mayo scissors
has beveled blade--most popular
-
microgrind or supercut blades
- black rings visually identify these scissors from standard or gold-handled tungsten carbide scissors
- this design is to stimulate a tissue lancing/slicing action
-
primary function of suction devices is to extract (suction) blood and fluids from
the surgical site
-
2 most common types of suction devices
- baron
- frazier
- use a metal stylet that us used during the surgical procedure to unclog the suction channel
- stylet is not to be used to clean the device
-
primary function of a rongeur
- cut or bite away at bone and tissue
- difference between a single action and double action rongeur is the design of how the jaws close
-
the primary function of kerrison/laminectomy rongeur is
remove the lamina
-
nail nippers (bone cutter) primary function is to
cut toe and finger nails and occasionally, to trim small bone fragments
-
the primary usage of graves and pederson vaginal speculums is to
- expose the vaginal cavity
- a pederson blade is narrower than that on a graves speculum
-
post operative care of surgical instruments
- within 15 min to an hour of surgical procedure, blood can begin to dry on instrument
- blood and soil is not allowed to dry on instruments
- to prevent damage due to dried blood, separate the rings, and rachets for box lock exposure on applicable instruments, cover them with a towel moistened with water
- or spray enzymatic solution on the instruments to prevent blood from drying
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solutions that damage instruments
-
use of saline on instruments
- accelerates rusting and pitting of surgical instruments
- operating room personnel can help by removing instruments from saline ASAP
-
instrument sharpness testing:
scissors 4 1/2" and LARGER
red test material
-
instrument sharpness testing:
scissors 4" or SMALLER
yellow test material
-
0.9% sodium chloride
irrigation, USP
saline
-
instrument sharpness testing:
bone cutter, kerrison rongeur, laminectomy(pituitary) rongeur, double action rongeur
index card
-
instrument sharpness testing:
bone curette, chisels and osteotomes
plastic dowel rod
-
marking instruments for identification can be done:
- use tape;
- clean fingers with alcohol to remove oils, grease, and any possible dirt
- wipe alcohol on the site of the instrument where the tape will be placed to remove any lubricant or moisture
- **the site should always be the shank of the instrument and never the rings
- **cut tape on angle to allow its edge to lay flat
- wrap the tape 1-one and 1/2 times around the device
- after the tape is applied , autoclave the instrument to allow heat to help bond tape
-
other ways to mark instruments...
- acid base etching-uses a stencil, solutions, and electricity to mark stainless steel
- heat-fused nylon- color-coding referred to as "dipping", powder coating process that leaves a thin layer of color nylon on the instrument
- laser etching- process is permanent and costly
- **surg. instruments can also be marked with an electric etching process, but this marking method should not be used because it damages the surface of the instrument
-
repair vendors maintain instruments...
- all surgical instruments are designed to be sharpened or restored
- sharpen all cutting instruments: all scissors must be on a sharpening schedule based upon how frequently they are used
-
surgical instruments with moving parts must be lubricated after each use or in accordance with..
- manufacturer's recommendations
- lubricants are abailable in spray form
- the point of application should be the instrument's hinged area or any working component such as a moving sliding area
-
tray assembly tips
- heavy instruments placed on bottom of tray
- select tray that allows for adequate weight/space distribution
- all curved instruments should be facing same direction
- tissue & dressing forceps should be softly nested
- delicate instruments shouuld be kept in micro cases or small protective cases
- use of metal instrument holders called stringers assist in faster sterile field
-
laser-finished instruments (tray assembly)
- with non-reflective black coating (ebonised) should never have metal-to-metal contact that can damage, chip, and scratch the finish during decontamination or tray assembly
- a silicon nipple mat can prevent metal-to-metal contact as can a foam or lint-free towel
-
gomco and mogen circumcision clamps
- gomco-are patented medical devices
- mogen- the gap should be measured each year to assure that it is between 1.5mm to 2.5 mm
- like gomco clamps, should never be repaired or sharpened because they do not have a cutting edge
-
lumen
the interior path through a needle, tube, or surgical instrument
-
powdered surgical instruments contain several working components and will be damaged if fluid is allowed to penetrate into the interior of the instrument, this is called?
fluid invasion
-
power sources for surgical instruments, 3 types:
- electric
- pneumatic (air)
- battery
-
instruments powered by electricity require,
a cable that can be sterilized
-
common problems associated with electric power equipment
- damage to electrical parts during sterilization
- condensation that enters the equipment when seals wear out
- electrical contacts become worn and affect equipment handiling
-
to care and handle electric-powered equipment include
- do no immerse the equipment in any solution including water
- do not use solvents or lubricats unless specified by the equipment manufacturer
- use a nylon bristle brush to clean the distal tip
- dry the equipment with a lint-free towel
-
electrical powered footswitch cleaning
- follow manufactorer's instructions
- avoid pulling on or stressing the power cord
-
pneumatic-powered (air-powered)
use compressed gas (CO2) , require a hose that can be sterilized
-
stond-alone cylinder (tank) with a pressure regulator or "piped-in" through a wall- or column-
mounted regulator panel
-
nitrogen can also be used for pneumatic power, and tanks of this gas contain a regulator with..
- 2 gauges
- one gauge- measures the pressure to the handpiece
- second gauge- measures the amount of nitrogen remaining in the tank
-
care and handle air equipment
- never immerse in any solution
- properly insert the cleaning brush into attachments and burr guards
- carefully wipe and rinse the outer case
- use a decontamination hose to protect inner components
- burr guards must be lubricated according to the manufacturer's instructions
-
battery-powered
- most common
- least cumbersome of the 3 available power systems
- is insterted into the instrument so the device is free to maneuver across sterile field
- freedom of movement: batteries require charging, and requires increased handling
- carefully follow manufacturer's recommendations for the flash sterilization of battery packs
-
care and handle of battery-powered instruments
- never immerse handpieces, attachments, or batteries, into any solution including water
- clean surgical debris from attachments and handpieces using nylon brush&mild detergent
- rinse under running water while assuring that the water does not enter the batter contact area
- used a decontamination battery to protect electrical components from moisture
-
popular powered surgical instruments
- dermatome/dermabraiders
- cebatomes
- sternal saw
- dental drills
- micro drills
- wire drivers, drills, and saws
- saws designed to perform specific cutting actions, such as reciprocating or oscillating
-
prevent fluid invasion
by insuring that handpieces are attached to the hose during cleaning to prevent solutions from entering the motor
-
scopes that have transformed how surgery is performed
-
fiber optic light carriers and camera systems that enable surgeons...
to see inner body spaces/surfaces are very sensitive to pressure and bending
-
flexible endoscopes need to be...
"leak tested" before submersion to assure that internal electrical curcuitry can protect components from fluid damage
-
endoscopes
- used to view the body's internal organs
- through natural openings such as mouth, anus, or through small incisions
-
the decision to sterilize or high-level disinfect a scope is based upton its use according to the...
spaulding classification system
-
the society of gastroenterology nurses and associates (SGNA):
guideline topics
- guidelines for use of high-level disinfectants and sterilants
- safe and effective handling of glutaraldehyde
- reprocessing flexible gastrointestinal endoscopes
-
reprocessing recommendations published by the
CDC and FDA
-
endoscopes and the spaulding classification system
- classifies "critical items" - those that penetrate skin or mucouse membranes or enter an area of the body that is normally sterile
- "semi-critical items" - only touch mucous membranes; ex: colonoscopes and gi endoscopes--require high level disinfection at a minimum to destroy: mycobaterium, vegetative bacteria, and non-lipid and small viruses, fungi, and some bacterial spores
-
endoscope manufacturers provide manual reprocessing instruction for..
each endoscope model
-
(AER)
- automatic endoscope reprocessor
- automated equipment designed to clean, disinfect, and rinse flexible endoscopes
-
preferred for processing flexible endoscopes...
-
3 solutions approved for endoscope high-level disinfection:
- glutaraldehyde (cidex)
- orthophthalaldehyde (OPA)
- peracetic acid solutions
-
when can an AER be used
- not all endoscopes and their accessories can be reprocessed in an AER
- if not specifically indicated in the AER labeling, ask AER manufacturers wheather the endoscope being used has been tested with their system
-
staff education:
department-wide education is key to effective infection control in endoscopy, and should be updated....
with each new piece of equipment and with each change in the chemical or process that is employed
-
term flexible and endo
- flexible-to bend
- endo- inside
-
scope components
- are assembled within an impervious material covering to produce an instrument that can bend gently to maneuver inside the body
- **care must be taken to avoid breaking any fibers by bending the endoscope at sharp angles or by dropping it
-
the largest operating channel is the...
instrument (biopsy) channel
-
endoscope channels:
- instrument
- optical
- suction
- air/water
-
biospies are taken by...
threading a flexible biopsy instrument through the biopsy channel to obtain a tissue specimen
-
bronchoscope
- direct visualization of the tracheobronchial tree, and involves:
- diagnosis to secure uncontaminated secretion for culture, to take a biopsy, or to find the cause of a cough or hemoptysis(spitting up bone)
-
cystoscope/ureteroscope
flexible cystoscope is used to visualize the urethra and bladder
-
gastroscope/esophagoscope
used to perform gastroscopy and involves the visual inspection of the upper digestive tract with aspiration of contents and biopsy, if necessary
-
colonoscope/sigmoidscope
- colonoscopy involves the visual inspection of the entire large intestine with a colonoscope
- sigmoidoscopy involves the visual inspection of the lower part of the large intestine with a sigmoidscope
-
6 basic steps are required to clean and reprocess endoscopes:
- pre-cleaning
- leak testing
- cleaning
- high-level disinfecting/sterilizing
- drying
- storing
-
leak test (endoscope)
an endoscope processing procedure that ensures the device's flexible covering and internal channels are watertight
-
basic steps for leak testing a scope
- remove all valves
- attach the leak tester to the EtO venting connector
- the most common area for leaks is bending rubber at the distal tip of the insertion tube; always check this area first
- visually inspect scope for tears,hole,and joints that may leak
- completely submerge scope under water
- observe the control knobs
- observe for holes in the scope's internal channels
-
steps for cleaning endoscopes:
detach all removable parts
-
high-level disinfection and liquid chemical sterilization
- immerse endoscope in disinfectant which is in a basin large enough for the endoscope. do not coil it too tightly
- use the cleaning adapters to fill all channels with disinfectant until no bubbles are seen exiting the channels
- place all valves and removable parts in the disinfectant
- cover with a tight lid
- check the disinfectants label instructions to determine the correct immersion time, and set a timer for that time
- when immersion is complete, purge the endoscopes channels with air to remove the disinfectant
-
a scope that fails a leak test should be...
immediately shipped to a service technician or manufacturer for repair
-
drying the exterior of the endoscope, and purging the remaining water from the channels ...
help prepare it for storage by minimizing the moisture necessary for bacterial growth
-
before storing, the scope should be...
completely dry both internally and externally
-
endoscopes should be stored...
- with the insertion tube hanging vertically (not coiled)
- with the weight of the control body supported and angulation locks off
- in a dry, dust-free cabinet with good ventilation
-
biopsy forceps
consists of 2 distally-located cups or jaws that open or close when a control located at the proximal end is manaipulated
-
video cameras on scopes...
allow easier visualization and recording of the procedures as they are projected to a video monitor
-
the optical element for rigid endoscope systems is called a
- telescope
- **this elemnt is the most expensive and fagile part of the system
-
lenses must never be placed in an
ultrasonic cleaner
-
lens inspection of a telescope
- avoid touching the ocular or the objective lenses
- examine non-video scope for optical clarity
- inspect optical fibers surrounding the lens train at the tip of the scope
- check the eyepiece seal for any visible signs of damage
-
laparoscopic instruments (used in abdomin)
- used to perform surgeries with several small holes versus large incisions
- some units conduct electricity to the working distal tip, and are typically insulated with a black material
- non electric units do not have the black insulation coating
-
laparoscopic insulation is very suseptable to ...
- pin holes
- cracks
- tears
- overall loosening
-
to inspect the laproscopic insulation ...
- the insulation should fit tightly against the collar, and this union should be tight and snug with no spaces visible
- electronic testing devices can detect microscopic holes in the shaft of a laparoscopic instrument
-
loaner instrumentation
instruments or sets borrowed from a vendor for emergency or scheduled surgical procedures that will be returned to the vendor following use
-
loaner instruments should be considered...
contaminated
-
from the time instruments are received, facitity staff accep responsibitly for them and must ensure that...
every device is cleaned, disinfected, and sterilized according to the manufactorer's written instructions
-
inventorying the instruments and sets when they arrive is an important step.
procedures include:
comfirming that the correct irem and number of items are delivered, and that the equipment functions correctly
-
central service techs wearing proper protective attire ...
should check loaner instruments
-
decontamination--each manufacturer has specific instructions about the type of..
enzymatic detergent, temperature, and mechanical cleaning method to be used
-
prion
virus-like infectious agents that cause a variety of neurodegenerative diseases in humans and animals including scrapie in sheep and goats, bovine spongiform encephalopathy (BSE) and creutzfeldt-jakob disease (CJD) in humans
-
after the loaner instruments have been sterilized they should be...
moved to a department area with low traffic flow and away from the direct airflow of cooling vents
-
microgrind, or supercut scissors are usually identified with...
a black handle
-
place where 2 parts of a ring handled instrument meet and pivot is called the ..
box lock
-
during instrument manufacture the process of _______ helps build a protective _______ _____ layer on each instrument's surface.
- passivation
- chromium oxide
-
after applying instrument identifiation tape, instruments should be..
autoclaved to help the tape bond to the instrument
-
instrument marking tape should be wrapped approximately ____ around the instrument.
1 to 1 1/2
-
what is not an acceptable form of instrument marking...
electric etching (engraving)
-
purpose of a suction stylet...
is to unclog the suction during surgery
-
kerrison laminectomy rongeurs should be tested using...
an index card
-
scissors with tungsten carbide cutting edges are usually identified by..
gold handles
-
the first step to inspect the insulation of a laparoscopic instrument is to
check the collar at the distal tip
-
which of the following steps happens when processing flexible endoscopes
leak testing
-
which of the following should be used to thoroughly rinse (remove) all traces of disinfectant from an endoscopes channels
filtered water
-
the purpose of using decontamination battery or cord when cleaning powered surgical instruments is
to keep fluid from entering the unit
-
endoscopes are often processed in a mechanical unit called:
an automatic endoscope reprocessor
-
the endoscope that would be dispensed for a procedure that required visualization of the lower part of the large intestine would be a
sigmoidoscope
-
loaner instruments should
be decontaminated before use
-
information regarding cleaning processes for endoscopes should be provided by
the instrument manufacturer
-
not all endoscopes can be processed in an
AER
-
electronic testing of laparoscopic insulation should be done
in the clean assembly area prior to set assembly
-
loaner instrumentation poses...
storage and workload challenges
-
after use, loaner instrumentation must be...
deconaminated before it is shipped out
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