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

Quoted from the reference literature.

Line Up

Slit Knife Double Bevel KI-A Series

Standard Width Thickness Tilt Blade Length
KI-A-2.2 2.2 0.2 30° 5.5
KI-A-2.8 2.8 0.2 30° 5.5
Custom Width Thickness Tilt Blade Length
Ex.) KI-AS-2.0-4.0
Ex.) KI-AS-2.8-6.0
2.0
2.2
2.4
2.6
2.8
0.2 30° 4.0

6.0
標準:KI-A-2.2
2.2
厚さ
0.2
傾き
30°
刃長
5.5
標準:KI-B-2.8
2.8
厚さ
0.2
傾き
30°
刃長
5.5
カスタム:KI-AS-2.0-4.0
2.0, 2.2, 2.4, 2.6, 2.8
厚さ
0.2
傾き
30°
刃長
4.0~6.0

Trifacet Knife Double Bevel KI-B Series

Standard Width Thickness Tilt Blade Length
KI-B-1.0 1.0 0.2 3.5
標準:KI-B-1.0
1.0
厚さ
0.2
傾き
刃長
3.5

Further Information

Ruby Knife

Inquiry
Inquiry form