Ligasure Flashcards
True or False. Monopolar systems include two separate surgical electrodes: the active electrode and the dispersive electrode.
True
Select all that apply. What are the risks of monopolar energy?
A) Significant risk for remote/collateral injury
B) Require longer activation cycles
C) Require greater voltage, which increases the extent of potential harm
D) Many instruments are less effective in electricity - sensitive tissues, intricate surgical procedures, or “wet” surgical fields due to lack of precision and control.
A, C, D
Select all that apply. Bipolar devices achieve tissue sealing and hemostasis through two primary mechanisms:
A) Mechanical compression of tissue
B) Delivery of radio frequency via a generator
C) Current diversion
A, B
True or False. LigaSure technology delivers high current and low voltage to targeted tissue that denatures the collagen and elastin in the vessel wall while the mechanical pressure from the instrument allows the denatured protein to form a hemostatic seal.
True
LigSure technology is powered by TissueFect tissue sensing technology. TissueFect manages energy delivery by rapidly sensing the tissue impedance, and adjusts energy output accordingly to complete.
What is the average time to complete a LigaSure seal cycle using Valleylab FT10 generator?
A) 1-4 seconds
B) 4-8 seconds
C) 6-8 seconds
D) 1-2 seconds
A) 1-4 seconds
True or False. The TissueFect sensing technology is designed to precisely manage energy delivery by sensing tissue impedance at the jaws of the instrument, and automatically adjusting the energy output.
True
Select all that apply. Which of the following are benefits of nano-coating technology?
A) fewer cleanings needed
B) less build-up
C) less sticking
D) easier, more effective cleaning
E) shorter sealing cycle
A, B, C, D
Select all that apply. What are true statements regarding the clinical benefits of LigaSure technology?
A) No potential for foreign bodies left behind
B) It relies on a proximal thrombus
C) No dissection and isolation from tissue bundles required for vessels up to and including 7 mm
A, C
Select all that apply. Which statement accurately describes a best practice when using a LigaSure device?
A) The jaws of the instrument should not be submerged in pooled fluids
B) Do not activate the system until the device is fully ratcheted or until you hear and/or feel the first click of the handpiece
C) Do not allow extraneous tissue to be lodged in the hinge of the jaws. This may result in cutting tissue without sealing
D) Use a general purpose wipe to clean the jaws of the instrument if excess eschar builds up
E) Do not overfill the jaws with tissue
F) Make sure the jaws are clear of any metallic or foreign objects. Sealing or cutting over clips or staples may result in an incomplete seal or damage the cutter.
A, B, C, E, F
True or False. When using a LigaSure device, it’s important to make sure the jaws are clear of any metallic or foreign objects.
True
What happens when an alert condition occurs in a LigaSure device?
A) An alert will be displayed on the generator
B) Energy delivery stops
C) The jaws of the instrument lock
D) The generator produces a sequence of pulsed tones
A, B,D
LigaSure is not recommended for use across which ligaments when performing a Hysterectomy?
Uterosacral ligaments
LigaSure is contraindicated for which Gynaecological procedure?
Tubal ligation
LigaSure uses an ultrasonic energy to seal and cut tissue. True or False?
False
True or False. Ligasure technology works by creating a “proximal thrombus”
False
LigaSure tissue fusion technology can permanently fuse vessels and tissuue bundles up to and including ____ in diameter.
7mm
When using LigaSure Technology optimal mechanical pressure is achieved when the tissue between the jaws is?
the device is fully ratcheted
the first click is reached on a non-ratcheted device
When using LigaSure Technology tissue division is achieved by?
deployment of the mechanical knife blade
Nano Coating Technology results in?
Less sticking and reduced build-up of eschar
True or False. When sealing vessels and tissue bundles with LigaSure we advise that it is ok to divide the target tissue before the end of the seal cycle if the laws remain closed.
False
True or False. LigaSure can only be used to divide tissue whilst applying energy.
False
True or False. When grasping tissue with LigaSure that you wish to ligate and divide you must ensure that tissue is placed as close to the hinge of the jaws as possible
False
To clean the jaws of a LigaSure device you should use a _________.
Wet sterile gauze
