Products/Services for Obsidian Scalpel Blades
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Blades (wind turbine) - (19 companies)Wind turbine blades are airfoil-shaped blades that harness wind energy and drive the rotor of a wind turbine. The airfoil-shaped-design (which provides lift in a fixed wing aircraft) is used to allow the blades to exert lift perpendicular to wind...
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Saw Blades - (702 companies)Saw blades are cutting implements used in conjunction with saws and other cutters. Saw blades are cutting implements used in conjunction with saws and other cutting devices. There are many different types of products. Types of Saw Blades. Examples... -
Knife Blades - (252 companies)Knife blades are sharp-edged industrial tools for shearing or cutting materials. A blade uses an edge to fracture and slice threw a material. A knife blade can be "toothed" but it still uses pressure against its edge as the primary means of cutting... -
Blade Servers - (74 companies)Blade servers are self-contained servers embedded in computer boards. Blade servers are self-contained servers embedded in dense, ultra-thin printed circuit boards (PCBs) called blades. A chassis called a razor houses the blades, which are usually... -
Cutoff Wheels and Abrasive Saw Blades - (470 companies)Image Credit: CS UNITEC | Lapmaster International | Norton Abrasives. Cut-off wheels and abrasive saw blades are used to cut bars, stock, pipes and other materials that are made of metal, concrete, or masonry. These center-mounted devices consist... -
Fan Blades and Propellers - (74 companies)Fan blades and propellers are used to convey power from a source (such as a jet engine) for propulsion or the movement of air. Propellers are an array of fan blades that transmit power by converting rotational motion into thrust. They are sometimes...
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Utility Knives - (64 companies)Utility knives are handheld, bladed cutting tools used to shear various materials during many manufacturing, handling, and construction processes. Utility knives are handheld, bladed cutting tools used to shear various materials during many...
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Sharpening Stones - (124 companies)...degrees of coarseness for sharpening stones. Coarse or extra course products are designed to provide rough or initial sharpening of the cutting edges of knives, blades, or other cutting tools. Products with medium coarseness are well-suited...
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Windshield Wipers - (14 companies)Windshield wipers are flexible blades used to push precipitation off of a vehicle's windshield. The blades are pushed over the surface of the windshield in an action that continually sweeps moisture off to improve operator vision. Windshield wipers...
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Tool Grinders and Sharpeners - (44 companies)Tool grinders and sharpening machines are specialized for tool, die, punch, cutter, blade and drill point sharpening, grinding, honing, finishing, resharpening, refinishing or regrinding. Tool grinders and sharpening machines are versatile...
Product News
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BigRep
BigRep Blade BLADE, BigRep 's easy to use slicer software, allows for greater control of printing parameters on all BigRep large-format 3D printers. Its integrated estimation engine gives accurate printing time and material use predictions for unmatched planning and productivity. As one of the fastest and most precise slicers on the market, this cutting-edge software is optimized for industrial part slicing to make for a rapid, hassle-free start to printing. Built on industry-standard software with key... (read more)Browse 3D Printers and Additive Manufacturing Machines Datasheets for BigRep -
Sonkit (Shanghai) Industry Technology Co., Ltd.
Blade C-Seal Design Intention: In the demanding fields of ultra-high purity (UHP), ultra-high vacuum (UHV), and cryogenic applications, maintaining reliable seals under extreme conditions is crucial. Traditional metal seals often face challenges such as high load requirements and inadequate sealing on smooth surfaces, leading to performance inefficiencies and higher operational costs. The Sonkit BCSE (Blade Metal C-Ring Spring Energized) seal is meticulously designed to address these challenges, offering... (read more)Browse Metal Ring Seals Datasheets for Sonkit (Shanghai) Industry Technology Co., Ltd. -
3X Ceramic Parts Company Limited
High Strength Zirconia Ceramic Blade Zirconia ceramic blades is a type of cutting tool that have gained increasing popularity in a variety of industrial applications due to their high strength, toughness, and wear resistance. for their ability to maintain a sharp edge for a longer period of time compared to traditional metal blades, One of the key advantages of zirconia ceramic blades is their ability to withstand high temperatures and aggressive cutting conditions. They are also highly resistant to wear and tear, making ideal... (read more)Browse Zirconium Oxide and Zirconia Ceramics Datasheets for 3X Ceramic Parts Company Limited -
Norton Abrasives
New Masonry and Tile Diamond Blades Norton Clipper has two new diamond blades designed for fast, smooth cutting of hard materials: Norton Clipper Slicer Turbo Mesh and the improved Norton Clipper Aero-Jet. Built with a unique mesh segment design and reinforced inner core to minimize chipping, Slicer Turbo Mesh cuts extra hard ceramics and porcelain fast. Featuring large arch shaped drop-down segments and a ventilated steel center, Aero-Jet is made for cool, precision cuts on ceramic and stone tiles, granite, marble, and very hard... (read more)Browse Cutoff Wheels and Abrasive Saw Blades Datasheets for Norton Abrasives -
Sonkit (Shanghai) Industry Technology Co., Ltd.
BCE: Blade Metal C-Ring Because it uses two tiny ridges or blades on the face of the seal, the Blade Metal C-Ring is distinctive. By focusing the compression pressure on the blade, it significantly reduces the load needed to distort the jacket material plastically. The Blade Metal C-Ring seal is a great option for applications requiring extremely low helium leak rates due to the significant contact stress that results in the seal track. Application: * Electronic Enclosures * Satellite Systems * Mass Flow Controllers... (read more)Browse Metal Ring Seals Datasheets for Sonkit (Shanghai) Industry Technology Co., Ltd. -
Tinius Olsen, Inc.
Testing wind turbine blade adhesive joints The majority of composite wind turbine blades contain adhesive joints. If a composite joint is properly designed, the adhesive can play a very beneficial role as its compliance allows for dimensional mismatch, such as from thermal expansion, and reduces stress concentrations at locations where elastic modulus mismatch is present. For all blades, defects or cracking between composite plies/delaminations, or in the vicinity of geometry changes, can occur. Learn More (read more)Browse Mechanical Testing Equipment Datasheets for Tinius Olsen, Inc. -
Keystone Electronics Corp.
Color Coded Auto Blade Fuse Holders Identifying Automotive Blade Fuses on PCBs is now "quick and simple " with the colored insulator bodies now available as the latest addition to Keystone Electronics highly-regarded series of low insertion force, compact Auto Blade Fuse Holders. Rated for 20 AMPs, 500VAC continuous usage, these new automotive blade holders are available in Surface Mount (SMT) and Thru-Hole (THM) types. The unique color-coded bodies match those in use for actual automotive fuses: Red for 10Amps, Blue for 15Amps... (read more)Browse Fuse Holders Datasheets for Keystone Electronics Corp. -
Sonkit (Shanghai) Industry Technology Co., Ltd.
Blade Metal C-Ring External Pressure Because it uses two tiny ridges or blades on the face of the seal, the Blade Metal C-Ring is distinctive. By focusing the compression pressure on the blade, it significantly reduces the load needed to distort the jacket material plastically. The Blade Metal C-Ring seal is a great option for applications requiring extremely low helium leak rates due to the significant contact stress that results in the seal track. Application: * Electronic Enclosures * Satellite Systems * Mass Flow Controllers... (read more)Browse Metal Ring Seals Datasheets for Sonkit (Shanghai) Industry Technology Co., Ltd. -
Keystone Electronics Corp.
UL Recognized Auto Blade Fuse Clips for PCB's Keystone Electronics Corp. offers UL recognized Fuse Clips for Automotive blade fuses. Available for use with Mini (MIN or ATM), Maxi, Low Profile (891 or ATM-LP) and Standard (ATOF,ATC) Automotive blade style fuses. These Low profile, space saving Fuse Clips are UL recognized to make the UL product certification easier. Suitable for applications up to 50 Amps, this full line of fuse clips can be used in a variety of products and environments. These innovative fuse clips are manufactured from... (read more)Browse Fuse Holders Datasheets for Keystone Electronics Corp. -
Pelonis Technologies, Inc.
AC Centrifugal Fans w/ Forward Curve Blades Pelonis Technology - RoHS compliant, forward curve AC centrifugal fans. Sizes from 133mm (5.2") to 320mm (12.6") and 230V. Airflow from 230 CFM to 5,886 CFM. High efficiency inlet designs, lubricated maintenance-free ball bearings, vibration-free operation, compact and rugged rugged construction. IP42 rating w/40,000 hours operation. Insulation class F. (read more)Browse HVAC Fans and Blowers Datasheets for Pelonis Technologies, Inc.
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A History of Medicine
Razor-sharp obsidian scal- pels and blades were used in surgery, bloodletting, and rituals of self- mutilation.
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A comparison of obsidian and surgical steel scalpel wound healing in rats.
Each rat received two parallel 8-cm dorsal skin incisions, one with an obsidian scalpel and the other with a surgical steel scalpel (no. 15 blade ).
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CR4 - Thread: Sharpest Edge?
"Because of the lack of crystal structure, obsidian blade edges can reach almost molecular thinness, leading to its ancient use as projectile points, and its modern use as surgical scalpel blades." .
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Abstract Journal for Surgical History
During the humble scalpel ’s adaptation to the demands of 19th and 20th centuries – from sterilisation to safety and mass production – history has provided inspiration, such as Don Crabtree’s 1968 rediscovery of obsid- ian blade -manufacture, which still produces the…
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Trepanation
…have serrated if irregular cutting edges, plainly evident in the case of flint, obsidian , basalt, shark’s teeth .... In fact, even the keenest scalpel blade is serrated when magnified under the microscope, as studies by both Bourgery (1837) and Tubby (1928) showed; the latter concluded, “every knife-edge is a saw in miniature” (Tubby, 1928, p. 737, Fig. 7B).
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Ancient technology in contemporary surgery.
Animal experiments have shown the tensile strength of obsidian produced wounds to be equal to or greater than that of wounds produced by steel scalpels after 14 days of healing. .... We have been able to demonstrate neither flaking of glass blades into the wounds nor any foreign…
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Biomaterials
materials is their conchoidal fracture with very sharp cutting edges.6 Therefore, it was used for scalpels for surgery and cutting blades in microtomes. .... Amorphous sil- ica occurs in nature as obsidian (volcanic glass) or flint (silex).
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Wednesday Round Up #145 - NeuroanthropologyNeuroanthropology
Julien Riel-Salvatore, Obsidian Blades As Surgical Tools. .... actually really sharp and a 30 year study shows that they may be comparable to steel scalpels .
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Surgery Before Common Era (B.C.E.*)
Surgical tool also included knives, drills, saws, hooks, scalpels , retractors forceps and pinchers, scales, spoons and a .... The knives used had stone blades . .... Flint or obsidian has edges sharper than modern surgical steel.
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Museum, royal college of surgeons of England. Guide to the Surgical Instruments and Objects in the Historical Series with their History and Development. By C. ...
It was not until the first quarter of the present century that American ingenuity devised a scalpel with interchangeable blades which could be fitted to a separate handle, but even these blades retain the bow-shaped outline of the original flint flake. .... In prehistoric times a scraper of shell, flint, or obsidian was used to rcmove a circumscribed piece…
