Sx_equiqment. and Tissue handling techniques Flashcards Preview

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Flashcards in Sx_equiqment. and Tissue handling techniques Deck (28)
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1

Hasted's principles

l) gentle tissue handling

2) meticulous hemeostasis

3) strict aseptic technique

4) preservation of blood supply to tissued

5) eliminate dead space

6) accurate tissue apposition with min tension

2

types of cutting instruments

scalpel

scissors

rongeurs

periosteal elevator

3

scalpel

primarily used

less trauma than scissors

#3, 3L, 7- #10-15

#4-#20-25

beaver-special blades

4

making a skin incision

centet of blade

penpendicular to skin

full thickness cut

5

four ways to hold a scalpel

fingertip grip

pencil grip

reverse press cut

press cut

6

scissors classification

point type

blade shape

cutting edge

 

7

what influences our selection of type of scissors?

straight tips-greater mechanical advantage, inanimate objects

curved tips-greater versatility, enable improve visibility

serrated cutting edge prevent slippage on lax or dense tissie

 

8

metzenbaum

thin, delicate blades about 1\4 of overal length

used on delicate tissues

sq tissue

9

mayo

thick blades about 1/3 of overall length

used on denser tissue

fascia

10

utility or operating scissors

straight blades with sharp-blunt tips

reserved for inanimate objects

11

ronguers

forceps with cupped jaws and blunted or tapered tips

uses: remove bone, prepare bone for graftong, recontour bone ends

12

periosteal elevators

double ended-freer, sayre

single-ended-langenbeck

neuro and ortho procedures

13

chisel

cuts bone

beveled on one side

14

osteotome

bone cutting

double beveled

15

saw

manual vs power

hobby saw

gilgi wire

16

bone cutting forceps

single vs double action

paired chisel like tips for cutting bones

17

curettes

various sizes and shapes

 harvesting bone grafts

beveled cupped end used to remove bone from restricted sites

18

trephines

cylindrical cutting blades and central stylet

bone bx, entry into bone cavities

19

needle holders

most equipped with ratchet, some have suture-cutting ability

jaw are short and frequently have grooves that are cross-hatched on surface

various sizes and lengths

textures tungsten carbide jaw inserts

20

tissue forcepts

various sizes and shapes for various tasks: tissue grasping, dissection

Cross serrations vs longitudinal serrations

21

Crushing tissue forceps

apposing tipcs with a hinge +/- ratchet lock

Allis and Ochsner-Kocher have teeth at their tips

Babcock and Allis grasp tissue at right angles to tesion that is applied

to minimize tissue trauma, crushing forcepts should only be used on tissue being excised

22

noncrushing tissue forceps

Doyen intestinal forceps-thin, slightly bowed jaws with fine longitudinal grooves of various lengths which may be straight or curved

peripheral vascular clamps-straight or angled jaws

partial occlusion forceps-used when incising large vessels, restrict bloodflow through only portion of vessel

23

hemostatic forceps

various sizes, orientations, partial vs complete serrations, straight vs curved jaw tip

tip clamping-Vessels-Halsted mosquito, Kelly, Crile

Jaw-clamping-ovarian pedicle-Rochester-Carmalt

 

24

Thumb forceps

usually straight, serrated shafts for secure grasping

constructed with or without teeth at tips

Brown-Adson, Adson, DeBakey

25

towel clamps

Secure towels or quarter drapes to skin of patient

penetrating vs non-penetrating

26

bone holding forceps

manipulate bone fragments or grip bone during fracture repair

classified by shape and locking mechanism-ratchet or speedlock

27

retractors

used to deflect tissue away from area of interest in surgical field

hand-held or self retaining

28

suction tips

accurate suction/small fluid volume-Frazier

large cavities/fluid volumes-Poole

Yankauer for intermediate volumes