Ruby Knife

We manufacture and provide safe, high quality medical precision equipments by using our own precision processing technology.

Ruby Knives are mainly used for Ophthalmic Surgery. Ruby Knives are shaper than the conventional knife. A postoperative cure of a surgical cut can be made faster by using the Ruby Knife.

A Jet Nozzle is being developed for water knife usage and is mainly made from Ruby and Sapphire Material.

Features

Use single crystal ruby which hardness is next to diamond.
Equal edge as diamond.
Better visibility of red color od ruby during an operation.
Long life od abrasion-resistant.
Avarable as autoclave sterilization.
Blade edge replaceable.
Available as custom design.
Available to check the edge as sample.
Made in Japan.

Slit Knife

Trifacet Knife

Specification

	Ruby			Diamond
Chemical Composition	Al₂O₃			C
Crystal System	Hexagonal			Cubic
Mohs Hardness	9			10
Knoop Hardness	Rectanglar to the C axis 1,525 ~ 1,660 kgf/mm²			5,500 ~ 9,000 kgf/mm²
Knoop Hardness	Parallel to the C axsis 1,670 ~ 2,000 kgf/mm²			5,500 ~ 9,000 kgf/mm²
Melting Temperature	2040℃			3227℃ (3500K)
Thermal Conductivity	at 20℃0.1cal/cm,sec,℃			at room temperature 2.39~4.77cal/cm,sec,℃ (10-20W/cm,K)
Coefficient of Thermal Expansion	Rectanglar to the C axis	200℃ 6.9 x 10-6/℃	1000℃ 8.9 x 10-6/℃	227℃ (500K) 2.70x10-6/℃
Coefficient of Thermal Expansion	Parallel to the C axsis	200℃7.6 x10-6/℃	1000℃10.0 x10-6/℃	927℃ (1200K) 4.93x10-6/℃
Specific Gravity	3.95 - 4.10			3.52
Dielectric Strength	480,000V/cm			-
Compressive Strength	20,800kg/cm²			-
Deplesion Potencial	5,000~7,000kg/cm²			-