Few types of surgery require more precision than eye surgery, for which standard steel surgical knives are insufficiently dull. Diamond knives provide micrometer precision for cataract surgery and other typical ophthalmic procedures. Knives are typically around 1-3mm in thickness, but can measure less. Not all blades and handles are shipped together. Handles should be chosen based on the size of blade the customer expects to use; blades can either be single, double or triple edged. Moreover, they are either configured as spear, tapered spear, lance or crescent shapes. Blades are extended (to about 3mm) or contracted with step wheels that move the blade in precise increments.
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| Company | Rhein Medical, Inc. | Rhein Medical, Inc. | Rhein Medical, Inc. | Rhein Medical, Inc. | Rhein Medical, Inc. |
| Item | Trapezoid 2.5-3.5mm Angled CVD Diamond Knives | Clear Cornea 2.8mm Angled CVD Diamond Knives | Precision Diamond Knife | Seibel LRI Diamond Knife | Trifacet AK/LRI Micrometer Diamond Knife w/Single Footplate |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | New advancements in diamond technology allow the incredible sharpness of diamonds to be used at a more economical cost. Proven diamond blade sharpness improves stromal reapproximation, enhances healing, and insures a superior postoperative result. | Rhein Medical announces its new CVD Diamond Knives. New advancements in diamond technology allow the incredible sharpness of diamonds to be used at a more economical cost. Proven diamond blade sharpness improves stromal reapproximation, enhances | Rhein 3-D Diamond blade, step knife. The sloping bevels of the anterior and posterior surfaces of the diamond are specially designed to automatically compensate for incising a spherical globe at an angle. These unique top & bottom bevels allow the | Unique In-Line Footplates Are Turned 90 Degrees To Allow Full Visualization Of The Diamond Blade While Incising Tissue.
Special Mirror-Polished Double Footplate Construction Insures Precise Blade Depth Penetration.
Pre-Set Blade Extension | With A Micrometer Handle, Designed To Dial An Exact Extension Of The Diamond Blade.
Special Single Footplate Allows Maximum Visibility, With Titanium Handle & Spring.
Unique 1mm Snub Nose Blade Tracks Better In Tissue, And Can Also Be Dialed |
| Approval | US FDA | US FDA | USA and worldwide | US FDA | US FDA |
| Product Number | 05-9008 | 05-9009
05-9009: Clear Cornea 2.8mm Angled CVD Diamond, Sharp On The Sides05-9011
Clear Cornea 3.2mm Angled CVD Diamond, Sharp On The Sides 05-9012
Clear Cornea 2.65mm Angled CVD Diamond, Sharp On The Sides 05-9013
Crescent 1.4mm CVD Diamond, Sharp On The Sides 05-9014
Clear Cornea 3.0mm Angled CVD Diamond, Sharp On The Sides | 05-5080 | 05-5039 | 05-5035 |
| Shape | Trapezoid | Angled | Straight | Snub Nose | Snub Nose |
| Edge | Sharp On The Sides | Sharp On The Sides | Inquire | Inquire | Inquire |
| Width (mm) | 2.5-3.5mm | 2.8mm | 3.2 mm | 1mm | 1mm |
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