Spare Insert for Miller Laryngoscope F/O/I/T #4 180mm

Clinical Application

This spare insert serves as a replacement blade element for a Miller laryngoscope FO/I/T #4 (180 mm). It restores the blade geometry, illumination pathway, and wear-resistant componentry required for reliable direct laryngoscopy and endotracheal intubation. Commonly used by anesthesia, emergency, and surgical teams, the insert enables lifting of the epiglottis for glottic visualization in adult airway management and helps minimize downtime when the primary blade assembly is out for service or repair.

Design & Configuration

The straight Miller configuration is designed to directly lift the epiglottis rather than engaging the vallecula, providing a clear line of sight for tube placement in many airway scenarios. The 180 mm length of the #4 size offers the reach necessary for larger adult patients. Integrated fiber‑optic illumination maintains a focused light channel along the blade, improving visualization of soft tissues and the glottic opening. The inclusion of a tungsten carbide (TC) wear component at points of repeated contact increases resistance to wear and preserves blade geometry over repeated reprocessing cycles. As a spare insert, it permits quick replacement of the blade element without replacing the entire handle assembly, supporting workflow continuity in busy procedural environments.

Instrument Specifications

• Instrument type: Spare insert / replacement blade
• Pattern / model: Miller #4
• Configuration: Straight blade with integrated fiber‑optic illumination and TC component
• Length / size: 180 mm
• Typical surgical use: Direct laryngoscopy for endotracheal intubation
• Material / construction: Stainless steel body with fiber‑optic light channel and tungsten carbide wear component
• Reusable: Yes

Material & Construction

The insert is constructed from medical‑grade stainless steel for strength and corrosion resistance. A dedicated fiber‑optic channel provides illumination when mated to a compatible FO handle or light source. Tungsten carbide (TC) is used in high‑wear contact areas to extend service life and preserve edge geometry. The design supports routine hospital reprocessing; components are intended for repeated cleaning, disinfection, and sterilization per facility protocols and manufacturer instructions for use.

Quality & Compliance

Manufactured by FDA-registered OEM facilities and produced under strict quality control standards.

Brand Comparison

Comparable in form and function to equivalent instruments offered by major US medical suppliers.

Availability & Returns

• In-stock lead time: ships within ~1 week
• Out-of-stock lead time: 2–4 weeks
• Returns: 30-day return policy