Cold Light Source Endotracheal Tube Stylet with Handle for Medical
Intubation
The procedure of placing an endotracheal tube (ETT) in the trachea
for ventilation and oxygenation is more than a thousand years old.
It was first performed on pigs by the Persian physician, Avicenna,
between 980 and 1037 AD.1,2 Blind digital intubation in humans was first described in 1796 by
Herholdt and Rafn in a resuscitation protocol for drowning victims.3 In 1880, Macewen described blind digital intubation in awake
patients using a curved metal tube.4 However, modern methods of laryngoscopic endotracheal intubation
did not emerge until early in the 20th century, after the
introduction of a flexible metal tube by Kuhn5 and of the laryngoscope by Jackson.6
Over the years, direct laryngoscopic intubation has been shown to
be an effective, safe, and relatively easy technique. In fact,
using a laryngoscope to obtain line of sight to the laryngeal inlet
has become the standard method of endotracheal intubation in the
operating room, the intensive care unit, and the emergency
department. However, even in the hands of experienced
laryngoscopists, accurate and prompt placement of the ETT remains a
significant challenge in some patients. This is particularly true
in “unprepared” patients and in patients requiring emergency
intubation. With any standard laryngoscope, obtaining line of sight
to the patient’s larynx can prove difficult in the presence of
specific anatomic variations such as a receding mandible, prominent
upper incisors, a restricted mouth opening, or limited movement of
the cervical spine. It has been estimated that 1% to 3% of surgical
patients have a so-called difficult airway (DA), making
laryngoscopic intubation problematic and sometimes impossible.7 In the obstetric population, the incidence of failed laryngoscopic
intubation has been reported to be 0.05% to 0.35%.8 Many predictors of difficult laryngoscopy (DL) have been suggested
in the literature,9,10 but the sensitivity and specificity of these tests remain
relatively low.11–13 Therefore, all clinicians must be prepared to deal with the
prospect of both anticipated and unanticipated DLs.
Given that direct laryngoscopic visualization of the glottis may
not be possible, especially in a timely manner during emergency
situations, a number of devices have been developed to enable the
clinician to pass the ETT “blindly” into the trachea. During the
last few decades, the use of intubating guides such as stylets and
introducers and light-guided intubation based on the principle of
transillumination have proved to be effective, safe, and simple
approaches. This chapter briefly reviews the principles and
techniques of these alternative intubation procedures.
Many types of intubating guides and lighted stylets have been
commercially available for many years. Where possible, this chapter
focuses on devices that have been proven to be effective and safe
in the medical literature. However, the concepts and techniques
discussed here may be applicable to other similar devices.
The Stylet has a flexible soft tip that prevents patient injuries
associated with the commonly used rigid stylets. The stylet that is
most similar to the Moffitt stylet is the ‘Rapid Positioning
intubation Stylet’ that shares the following features with the
Moffitt stylet: a soft tip, a slimmer profile to allow a clear and
unblocked view of the patient’s airway, and a user-controlled
flexible tip. The Rapid Positioning intubation Stylet costs $40
leading to a potential US market for the Moffitt stylet of $230
million.
Data Sheet
| Stylet Size(FR) | Code |
| 6FR | MC-6006 |
| 10FR | MC-6010 |
| 12FR | MC-6012 |
Used for guiding light source during tracheal intubation to assist
tracheal intubation. The light source of this product is red light
LED which provides power via the lithium battery inside the device
to light up the LED to produce the illuminated red light which
illuminates at the front end through optical fibers.
Advantage 1: High intensity LED red light can reach up to 20000 lux
(golden one), and can be adjusted steplessly.
Advantage 2: Malleable wand of proper stiffness can be easily
shaped and maintained.
Advantage 3: The wand is coated with self-lubricating material,
matching tracheal intubation smoothly.
Advantage 4: Large capacity rechargeable lithium battery provides
super long endurance.
Photos
