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Surgical Blades & Scalpels
A scalpel, or lancet, or bistoury, is a small and extremely sharp bladed instrument used for surgery, anatomical dissection and podiatry.
Some History
Scalpel blades are usually made of hardened and tempered steel, stainless steel, or high carbon steel; Charles Russell Bard and Morgan Parker, founders of the Bard-Parker Company. Morgan Parker patented the 2-piece scalpel design in 1915 and Bard-Parker developed a method of cold sterilization that would not dull the blades, as did the heat-based method that was previously used.
-> The world's first scalpel blade patent
What makes a good surgical blade?
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Right raw material with correct alloy mixture
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Deep understanding of Heat treatment
process and temperature control
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Correct Grinding Process
1. High Quality Grinding Wheel
2. Superior Primary Grind angle
3. Correct width of cut
4. Correct Cleaning Process
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Superior Packaging
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Correct Hardness for CS is >800 HV
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Correct Hardness for SS is >700 HV
Carbon Steel Chemical Composition Ref; BS 2982:1992,
Stainless Steel Composition ISO 7153-1:1991/Amd 1:1999
Blade thickness 0.37 to 0.42mm EN ISO 27740
Fitment dimension as per ISO 27740
Hardness Values
Carbon steel 800-840 Hv BS 2982:1992
Stainless steel 700-740 Hv
ISO 11137-1: 2006 Sterilization of health care products — Radiation —Part 1:
Requirements for development, validation and routine control of a sterilization process for medical devices
ISO 11137-2: 2013 Sterilization of health care products — Radiation — Part 2: Establishing the sterilization dose
ISO 11137-3: 2017 Sterilization of health care products — Radiation — Part 3: Guidance on diametric aspects
ISO 11737-1: 2006 Sterilization of medical devices – Microbiological methods- Part 1 Determination of a population of microorganisms on products.