3. Surgical Equipment and Instruments Flashcards

1
Q

What are the SVMA practice standards for surgery room, and recovery rooms?

A

Must have a separate room for sx in all clinics built/remodeled after 2004
if no separate single purpose sx room, a written protocol describing how asepsis is maintained must be presented
A recovery area must also be provided where patient may be frequently observed following anesthesia (but need not be separate from animal compartments)

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2
Q

What is an ideal laout of the surgical suit?

A

American animal hospital association recommends 3 distinct and separate areas for a sx facility
1. preparation area
2. scrub area
3. sx room
In addition, SVMA has specific requirements in the practice standards regarding surgical facilities that are a vet hospital must meet to pass inspection and to receive authorization to offer surgery

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3
Q

What is the ideal preparation area?

A

Should be adjacent to sx room
Used for patient prep (clipping and initial scru) and storage of surgical supplies
ideal to have a separate anesthesia machine for prep room - to prevent cross-contam from occurring went he machine is moved from one room to another
Procedures that are considered clean but not sterile or that are classified as dirty should be performed in this area

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4
Q
A
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5
Q

What is an ideal scrub area?

A

lg enough to hold a scrub sink
room to put on gown and gloves - may also be where autoclave is located

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6
Q

What is an ideal surgical suite?

A

separate dedicated room used for only aseptic surgical procedures
should be easy to clean
large enough that personnel can easily move around the surgery table w/o contaminating the surgical field or the surgeon
should be free of clutter - only req surgical equipment should be kept in sx suite
Cabinets should be made of nonporous material with doors - protects sterile supplies from dust, debris and other contaminants
should have a door into room that can be closed
air pressure should be treating in sx room than rest of facility - higher air pressure pushes air out of room > reduces ability of airborne bact to move into surgical room from other areas of clinic

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7
Q

What is some examples of permanent equipment?

A

equipment fixed to the floor, wall or ceiling in sx
non-movable pieces like sx lights/table, radiographic viewbox/computer
anesthetic machine - although they should not leave sx room, many facilities they are required to serve a dual purpose and are moved to other areas of the hospital

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8
Q

What are some examples of movable equipment

A

able to be transported to other areas of the hospital
these items must be cleaned and disinfected thoroughly b4 being returned to the sx room
movable equipment items include:
monitoring equipment
heating pads, IV drip stand
instrument table, mayo stand
suction
cautery unit
kick bucket

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9
Q

How is equipment cleaned?

A

sx room should never be dry dusted because this may aerosolize dust and bacteria
all equipment should be wiped daily b4 sx w/ appropriate cleaning or disinfecting solution
important tof follow the manufacturer’s instructions
important to follow equipment-specific maintenance instructions
info should include the equipment’s compatibility w/ chemical germiides, whether it can be immersed for cleaning, how it should be decontamed

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10
Q

What are perioperative equipment?

A

many pieces of equipment besides sx instruments are critical to success of a sx procedure
Whether related to providing patient comfort, assisting the surgeon, or monitoring anesthesia, each item is an integral part of process
ex. patient warming devices, sx lights/table, electrosurgery, suction machines, surgical instruments

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11
Q

What are patient warming devices?

A

ALWAYS place a towel btw ur patient and the warming device to prevent thermal burns
Circulating warm-water blankets are commonly used for sx patients - heated surface helps prevent the loss of body heat to a cold metal surface, diminishes hypothermia

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12
Q

What is a hard heated pad?

A

made of acrylic plastic glass like plexiglas, connects to many currently available circulating water pumps
the main advan to this style of heating system is that plexiglass is puncture proof

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13
Q

What is a hot dog warming blanket?

A

uses electricity to warm the pad but does not pose the same threat for thermal burns as a traditional heating pad
has a sensor in the pad to regulate the heat generated
not puncture proof but are not harmed if punctured

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14
Q

What are forced warm air devices?

A

ex. bair hugger
pad is placed around the patient, then inflated w/ warm air
constant flow of warm air is very effective @ maintaining or inc patient’s body temp
not puncture proof, but there is less risk of puncture bc pad is not placed near the animal until patient is anesthetized

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15
Q

What are the components of surgical lights?

A

adequate lighting is imperative
ceiling or wall-mounted lights are much better than standing floor models
removable light handles that can be autoclaved
surgeon or surgical assistant can then place handles on lights, allowing either person to adjust lights directly

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16
Q

What are the components of a surgery table

A

table top can be solid surface or can be designed in a split-surface style
Solid-top model is generally less expensive and can be more difficult to work w/ bc fluid pool on table top and can soil the patient
Split-top table has double advantage of - tray under space in table to collect any fluod that may run off the surgical field
the ability to be adjusted to help maintain the patient (especially lg, deep-chested dogs) in dorsal recumbency
can have heated tabletop
sx tables should also have capability to be raised/lowered/tilted

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17
Q

What is electrosurgery?

A

use of electricity, trasmitted thru a special hand piece, to cut or coagulate vessels
single-use or reusable cautery hand pieces
charred material may build up on the tip of the hand piece, impeding the flow of current- may be cleaned by scraping w/ a scalpel blade (away from sterile field) or by using a commercially available scratch pad

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18
Q

What is monopolar electrosurgery

A

a ground plate must be placed under the patient, water- or saline-saturated sponge should be placed on ground plate btw patient and plate, alcohol NEVER used to saturate bc patient burns/fires, can make sx incision -takes longer to heal bc of charring of tissue

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19
Q

What is bipolar electrosurgery?

A

utilizes a hand piece that resembles a thumb tissue forceps
no ground plate needed
as hand piece is activated, current passes from one tip to another

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20
Q

WHat are the 2 ways monopolar electrosurgery can be used?

A
  1. hand piece can be activated, tip of hand piece can directly touch the tissue or vessel that needs cauterizing
  2. hemostat can be placed on the tissue or vessel that needs to be cauterized
    hemostate is elevated off sx field so only metal touching patient is tip of hemostat
    cautery hand piece tip can then be touched to hemostat as the hand piece is activated
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21
Q

What is suction, in surgical equipments and instruments

A

defined as the ability to remove fluid or air from an area by a manual or a mechanical device
Can be performed w/ a syringe, a bulb syringe, or mechanical pump - mechanical pump is commonly used in surgery
suction can be used when working in body cavities to remove excess fluid

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22
Q

When might you use suction?

A

orthopedic surgery to lavage a joint, flush a septic site, remove bone dust created while drilling screw holes for a fracture repair

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23
Q

Why might we care with the different lvls of vacuum when using a suction equipment?

A

sufficiently strong vacuum that meets the needs of the surgical procedure w/o being excessive is the goal
inappropriate low vacuum settings will not adequately suction the field and debris on the field and will prove to be frustrating
in abdominal procedures, if the vacuum lvl is too high, omentum may become entrapped in the suction tip may be damaged

24
Q

What is the electric power suction machine?

A

uses a motor to generate vacuum or a central vacuum system may be used
both req some sort of bottle or acceptable for the collected fluid
usually, cover of bottle has some type of float/safety device that won’t allow fluid into working mechanism of the suction machine if the bottle becomes too full
diff types of suction tips

25
Q

What are the types of suction tubings are out there?

A

6- and 10-foot lengths
usually prepackagaed and sterilized for single-use
after pkg opened onto sterile field, one end of tube attached to suction tip and other end is dropped off field to be connected to the nonsterile suction unit
bc length of tube and difficulting in cleaning it appropriate, discard it
for some reason tubing not used after opening, can be re-sterilized w/ ethylene oxide sterilization must be used bc this is vinyl tubing and cannot withstand steam sterilization

26
Q

Explain the jaw or tip component of surgical equipment

A

Can be traumatic or atraumatic, straight or curved, serrated horizontally, vertical or combo
teeth or arrangement of teeth can be 1x2, 2x3, and so on - can be arranged in rows
Tips/jaws easily damage
Teeth and serrations should be evaluates for defects
Blades are available on most types of scissors as curved or straight
blades can have sharp or blunt tips

27
Q

What is the box lock component of surgical equipment

A

present only on instruments with ring handles
is the joint or hinge of the instrument
absorbs great stress when the instrument is in use
must be inspected carefully to detect any cracks or evidence of degradation
most difficult part of the surgical instrument to clean

28
Q

What is the shank or shaft of surgical instrument components

A

body of the instrument
runs from box lock to finger rings
usually longest area
longer the shank, greater the closing force on the jaws

29
Q

What is the ratchet component of surgical equipment

A

found only on instruments with ring handles
a device w/ interlocking teeth that will lock an instrument jaw in a closed position
degradation of this part of the instrument is usually seen as inability of the ratchet to remain locked
difficult part of sx instrument to clean

30
Q

What is the ring handle component of surgical instruments

A

serve as means for using and controlling instrument
Proper handling is THUMB and RING FINGER in rings
index and middle rest on shank of instrument

31
Q

What are scissors used?

A

used for cutting, blunt dissection

32
Q

What are hemostats used for

A

used to aid in controlling hemostasis in surgical field

33
Q

What are needle holders

A

only instruments used to hold metal

34
Q

What are scalpels

A

handles often have units of measurement on them to be used as needed

35
Q

What are thumb tissue forceps used for

A

used to grasp and retract tissue on a short-term basis

36
Q

What are retractors used for

A

to deflect or retract tissue of other structures awayf from surgical field
can be handheld - req at least 2 sterile members
can be self-retaining

37
Q

What are towel clamps used for?

A

used to secure the sterile drapes to the patient or to each other

38
Q

What is the snook spay hook?

A

used to find and exteriorize the uterine horns when performing a ovariohysterectomy on d/c

39
Q

What is a groove director

A

designed to aid surgeon in making incisions on linea alba
provides a channel that the scalpel can follow to avoid accidental incising of abdominal viscera

40
Q

What is the staple remover used fro

A

removes staples
has two teeth on one side and one tooth on the other

41
Q

What is the purpose of bowls?

A

some instrument packs include a sterile bowl
the bowls can be used for holding saline for lavage or for storing sharps during the procedure to help keep the instrument table safe and clean

42
Q

WHat are intestinal clamps used for?

A

types used in a procedure depends on the intended outcome of the tissue being clamped
-tissue that is not viable or that is being removed can be clamped w/ a more traumatic clamp
tissue that merely needs to be manipulated but will remain in the patient needs to be handled with more care

43
Q

What is the purpose of a punch biopsy

A

variety of sies
appropriate size to use depends on the size of the tumor or sample req
intent is to collect a core sample from tissue - thumb tissue forecepts and metzenbaum scissors are also needed when performing a punch biopsy

44
Q

What is a needle punch biopsy used for

A

equipped w/ either a cutting or core biopsy needle
avail as manual and automatic devices
take a sm piece of tissue (approx size of pencil lead) for microscopic eval
ultrasound-guided biopsies of internal organs, including liver, spleen, kidney and prostate, are often performed w/ these instruments

45
Q

WHat are bone biopsy instruments used for

A

to obtain a core sample from the tissue

46
Q

What is the purpose of bone holders?

A

clamps designed to hold bone fragments together until permanent fixation can be achieved
can have pointened, toothed or serrated tips

47
Q

What are periosteal elevators

A

used to prepare the fractured bone for permanent fixation
to elevate periosteum from bone so that implants can be placed
used for making gingival flaps in dentistry

48
Q

What are bone rongeurs used for

A

used ot break up bits and pieces of bone for grafting purposes
pieces of bone too small to reattach the animal are broken down into sm pieces and packed around fracture lines to encourage new osteoblast formation and promote healing
also used to remove pieces of unnecessary bone

49
Q

What are bone cutters used for?

A

have cutting-edged tips designed to cut thru bone and to remove sm pieces of bone

50
Q

What are bone curettes?

A

used to harvest bone graft material or to shape and scrape bony surfaces

51
Q

What is a hand chuck

A

to hold and drive intramedullary pins for repair of a fracture or for other orthopedic procedures requiring the use of pins
a manual drill

52
Q

What are some internal fixation implants for fracture repair?

A

Intramedullary pins, pin cutter, orthopedic wire, bone plates and screws (depth gauge, prethreading tip, screwdriver, drill and tap sleeves, countersinks, plate benders)

53
Q

What are the 3 ways that we can supply power to a hand piece?

A

pneumatic - compressed nitrogen or via air power cord or hose
Electric - via wall plug - hose doesn’t detachf rom hand piece
battery - rechargeable battery pack inserted into hand piece - no hoses or cords
handpieces NEVER immersed inliquid

54
Q

What are power drills used for?

A

fracture repair requires use of a power drill to place implants

55
Q

What are specialized drills?

A

neurosurgery req use of a specialized drill to remove vetebral body bone
ex power saws
can be in separate pieces, or interchangeable, multifunctional pieces

56
Q
A