What is a Miller blade?
Description. The Miller laryngoscope is a straight blade designed to obtain a view of the vocal cords by directly lifting the epiglottis. It has useful application in ‘floppy’ airways making it popular within paediatric anaesthesia. The Miller laryngoscope is the most commonly used blade today. Miller laryngoscope.
When do you use a Miller blade?
It is used in people with irregular teeth, especially those with missing right upper teeth [7-9]. The Miller blade is straight without any curvature, and due to the anatomy of the mouth and tongue and the large epiglottis in children, the Miller blade provides a clearer view of the larynx inlet [10].
How do you intubate with a Miller blade?
If using the Miller blade, then advance to the epiglottis and place the tip of your blade on the epiglottis. Then you sweep the tongue to the left and pull your blade towards your patient’s feet, lifting the epiglottis. Your Goal is just below the epiglottis.
Where do you put the Miller blade?
Procedure (Miller Blade)
- Place patient into sniffing position.
- Use “scissor” technique with right hand to open mouth.
- Insert laryngoscope blade into right side of mouth.
- Slowly advance blade into mouth while performing “tongue sweep”
- Identify epiglottis and gently lift with tip of blade.
What is the difference between Miller and Macintosh blades?
In group A, Macintosh blade was introduced till the tip lies in vallecula after which traction force was applied along the handle to lift the base of tongue and epiglottis, exposing the laryngeal inlet. In group B, Miller blade was passed posterior to the epiglottis directly lifting it to expose the glottis.
When was the Miller blade invented?
In 1941, Robert Miller of Pennsylvania designed a blade with a curve on the bottom and a curved distal tip.
Which blade goes in the vallecula?
curved MAC blade
The curved MAC blade is designed to match the curve of the tongue and to put point pressure on the hyoepiglottic ligament. With pressure in the vallecula on this ligament, the epiglottis is pulled upward. The curved blade can then pull the tongue and soft tissue under the tongue forward, bringing the glottis into view.
What is McCoy laryngoscope?
McCoy laryngoscope is used in patients when difficulty in elevating epiglottis is encountered and activation of blade tip elevates the epiglottis and visualization of vocal cords.
Is Mac or Miller blade better?
The Macintosh is also thought to be less traumatic to the teeth and to provide more room for passage of the tracheal tube through the oropharynx. However, the Miller provides a better view of the glottis in a patient with a long, floppy epiglottis, or an anterior larynx.
What blade do you use to intubate an infant?
It is common practice to use a straight laryngoscope blade such as the Miller 0 or 1, or the Wis-Hippel 1.5, to intubate the trachea of an infant or a child up to school age. A curved laryngoscope blade with a wider spatula, such as the Macintosh blade may be advantageous to control the tongue of an older child.
Who invented the Miller blade?
Current Laryngoscope Blades 16In this article, Miller reported his design of a blade with a curve on the bottom and a curved distal tip, currently known as the Miller blade . 1,3,16In 1943, Robert Macintosh designed a blade with a continuous curve.
What is a Miller laryngoscope?
The Miller laryngoscope is the most commonly used blade today. Miller found traditional straight blades to be too thick at the base and too short increasing the risk of trauma to the teeth.
What is the difference between a Miller Miller and a medium blade?
Miller designed his blade by making it straight and longer than the old style medium blade, rounded at the bottom and smaller at the tip with an extra curve two inches from the end. This made difficult intubations easier to perform and minimised dental trauma. Initially only the size 2 (medium) was used.
What are intubrite laryngoscopes?
IntuBrite laryngoscopes are the first fully-disposable laryngoscopes with superior lighting and the all-metal construction of reusable scopes. The innovative dual-LED lights combine white and ultraviolet wavelengths to illuminate airway structures. Bulbs are near the tip of the blade for superior illumination.
What size laryngoscope do I need for intubation?
This made difficult intubations easier to perform and minimised dental trauma. Initially only the size 2 (medium) was used. Since then laryngoscopes from size 0 (for premature) to 4 are available. 2017 Oxiport ® is a Miller laryngoscope providing apnoeic laryngeal oxygenation in neonates and infants during intubation.