Instrumentation Flashcards
What must sharps be placed in on the completion of surgery
Gallipot
What must swabs be placed in on the completion of surgery?
Kick bucket
What is a Mayo pin used for?
Hand towel clamps and crushing forceps to facilitate storage and easy lifting from the basket
What instrument is the gold-standard for cutting and causes the least trauma?
Stainless steel scalpel
What is the most common scalpel handle type?
Number 3
What is the most common number blade?
number 10
What type of incision gives the best control of length, depth and direction?
Slide cutting
Which grip is used for long incisions?
Fingertip grip
Which grip increases precision and depth control and is used for shorter/more delicate incisions
pencil grip
What type of incision is used to enter body cavities or fluid-filled organs such as the linea alba or the bladder?
Press cutting
What material gives better stability and protects suture damage on the tips of needle holders?
Tungsten Carbide
What is the difference between Mayo-hegar and Olsen-Hegar needle holders?
Olsen-Hegar have a cutting blade built into the jaws
Name the four grip types for instrument handling
- Tripod (most used)
- Thenar
- Palmed
- Pencil
Are blunt tipped or sharp tipped scissors preferred?
Blunt tipped
What are the advantages of curved vs straight scissors?
Curved scissors improve visibility during dissection
Straight scissors offer a mechanical advantage
Which instruments are useful to have long versions of for work in deeper cavities?
- Needle holders
- thumb forceps
- metzenbaums
- right-angled forceps
How do you differentiate metzenbaum scissors from Mayos
Metzenbaums: thin, delicate tips used for most dissections
Mays: longer, thicker blades used for cutting dense tissues. Separate pair used for cutting suture
Which grip gives best control over forces when using scissors?
Tripod grip
Name and describe the three types of force exerted with scissors
Closing: cause blades to come together
Shearing: push the blades flat against each other during closing
Torque: roll the leading edges of the blades inward to touch each other
Name the three scissors cutting techniques:
Sharp dissection
Push cutting
Blunt dissection
Describe sharp dissection
Standard double-blade cutting action. only the tips are used to prevent crushing tissues
What may push cutting be used for?
rapidly cut through less dense, areolar tissue
What is blunt dissection used for?
To undermine skin edges or to break down loose connective tissue. Only the tips are used to prevent tissue trauma. Do not use excessively as it increases tissue trauma and dead space.
Describe blunt dissection
The tips are introduced under the skin, the blades opened then withdrawn and then closed before re-introduction.
Name two types of crushing forceps
Allis forceps
Babcock forceps
Which forceps have serrated tips and are used to grasp and manipulate dense tissue and fascia. They cause tissue damage due to crushing and should only be used on tissue that is going to be excised
Allis forceps