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Veterinary Assisting > Surgical Instruments > Flashcards

Surgical Instruments Flashcards

1
Q

Scissors

Classified according to:

A

Points
* Blunt-blunt
* Sharp-sharp
* Sharp-blunt

Blade shape
* Straight
* Curved

Cutting edge
* Plain
* Serrated

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2
Q

Scissors used to

A
  • Cut inanimate objects like drapes and suture
  • Cut tissue during surgery
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3
Q

Metzenbaum scissors

A
  • Delicate scissors
  • Used for fine, thin tissue
  • Curved or straight
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4
Q

Mayo Scissors

A
  • Heavier scissors
  • Used to cut heavy tissue, such as fascia
  • Curved or straight
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5
Q

Suture removal scissors

A
  • Concavity on one blade
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6
Q

Bandage scissors

A

One tip is blunted to prevent the cutting of underlying tissue when it’s introduced
under the bandage edge

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7
Q

Forceps

A

*Tissue forceps
*Hemostatic forceps

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8
Q

Hemostats

A

*Technical name – hemostatic forceps
*Crushing instruments
*Used to clamp blood vessels and crush tissue that will be surgically
removed

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9
Q

Hemostats classified according to

A

Shape
* Straight
* Curved

Serrations on the jaws
* Transverse (horizontal)
* Longitudinal
* Diagonal
* Combination

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10
Q

Halstead Mosquito Hemostats

A
  • Small jaws with fine transverse serrations
  • Used to clamp small vessels
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11
Q

Kelly forceps

A
  • Transverse serrations
  • Serrations only extend over the distal portion of the jaws
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12
Q

Rochester-Carmalt forceps

A
  • Large forceps
  • Longitudinal grooves with cross grooves at the tip ends to prevent tissue slippage
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13
Q

Tissue Forceps

A

Used to clamp and gently hold tissue

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14
Q

Thumb forceps

A

*Non-locking tissue forceps
*Tweezer-like (do not call them tweezers!)

Classified by tips
* Rounded
* Pointed
* Flattened
* Teeth

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15
Q

Adson-Brown tissue forceps

A

*General surgery forceps
*Two parallel rows of shallow teeth

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16
Q

Adson 1x2 tissue forceps

A
  • Used to grasp tissue firmly
  • Can cause trauma to tissue
  • One tooth on one tip and two teeth on the other
17
Q

Allis tissue forceps

A

*Used to grasp and retract tissue
*Can be traumatic to tissue

18
Q

Needle Holders

A

*Used to grasp and manipulate curved needles
*Also used to place scalpel blade onto the scalpel handle (don’t use fingers
– ouch!)

19
Q

Olsen-Hegar Needle Holders

A
  • Scissors built into the jaws
20
Q

Mayo-Hegar Needle Holders

A

No scissors

21
Q

Needle Holder vs Hemostat

A

*Needle holders look similar to hemostats, but the jaws are shorter and
thicker
*Needle holders have cross-hatch serrations (to ensure firm grip on needle),
while hemostats have transverse serrations (most common)

22
Q

Towel Clamps

A

*Keeps sterile drapes and surgical towels in place
*Penetrating and non-penetrating tips

23
Q

Backhaus towel clamps

A

*Most common type
*Different sizes
*Penetrating tips

24
Q

Miscellaneous Instruments

Snook Spay hook

A
  • Used to locate the uterine horns during an ovariohysterectomy (spay)
25
Q

Retractors

A

*Used to retract tissue gently
*Can take the place of an assistant

26
Q

Skin staplers

A
  • Used to quickly close an incision
27
Q

Suture

A

A strand of material used to approximate tissues or ligate a blood vessel

Classified by
* Size
* Absorbable or non-absorbable
* Natural or synthetic
* Monofilament or multifilament

28
Q

Size of Suture

A

*Suture size ranges from 11-0 to #7 (smallest to largest)
*When there’s an ‘0’ after the number, it’s pronounced ‘ought’
*The higher the ‘ought’, the smaller the diameter
*The higher the number (no ‘ought’), the larger the diameter
Small Large
5-0 4-0 3-0 2-0 0 1 2 3

Large animal suture
*#1 - #7

29
Q

Absorbable vs Non-Absorbable Suture
Absorbable

A
  • Loses it’s tensile strength within 60 days after placement
  • Eventually absorbed by the body
    Non-absorbable
  • Not reabsorbed by the body
  • Usually used for skin sutures that are then removed in 14 days

Read the package! It will say if the suture is absorbable or non-absorbable

30
Q

Chromic gut

A
  • Absorbable suture
  • Made from sheep or cow intestine
  • Chrome added during manufacturing
  • Rapidly reabsorbed
  • Usually used in dental procedures
31
Q

Suture selection is critical!

Sutures can be

A
  • Soft or hard
  • Have good or poor tensile strength
  • Have good or poor knot retention
  • Be absorbed quickly or not at all
  • Be reactive or non-reactive
32
Q

Suture Needles
Classified by

A

*Shape
*Needle point

33
Q

Needle point

A

*Most common
* Cutting and reverse cutting – three cutting edges

  • Taper – sharp tip that pierces and spreads tissues without cutting them (intestine,
    bladder, hollow organs)

Most suture has a swaged needle

*Swaged needles – the needle and suture are joined in a continuous unit

34
Q

Tissue Adhesives

A

*A surgical adhesive that rapidly
polymerizes in the presence of
moisture and produces a strong
flexible bond
*Will only hold skin edges that are
fairly close together
*Not extremely strong – will come
apart with excessive tension on
wound

Veterinary Assisting (20 decks)

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