News — Clean cut
How to Cleave Surgical Fibers
AccuFlex Accumax AccuTrac ACMI laser fiber calculase chips Clean cut cutting fiber dornier EndoBeam Fiber Flexiva glass fragments high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz laser fiber Laser Lithotripsy Lasersafe litho laser Lumenis medilase medilase H20 OmniPulse Optifiber ProFlex LLF ProGlide ProGuard quanta laser reprocessing laser fiber scope safe Scopesafe Slimline stonelight SureFlex TracTip Trimedyne yellowstone
How to Cleave Laser Surgical Fibers Purpose: Provide simple instructions for reprocessing flat tip bare fibers for laser surgery. Summary: Clean cut and flat optical faces are necessary for surgical efficacy in laser surgery. Badly cut fibers deliver energy to target tissue less efficiently and degrade more quickly than properly cut fibers. Step-by-step instructions…. Rationale: A.A. Griffith developed the first theoretical model for fractures during WWI, inaugurating the Science of Fracture Mechanics. As luck would have it, Griffith studied glass fibers. Telecommunications fibers are made of fused silica -- just like laser surgical fibers -- and more telecom fibers are...
Cutting Fused Silica Capillary Columns per LC-GC Application Note
capillary chromatography Clean cut column leaks column repair column repair union cracked column fixing a broken column glass fragments glass union glass y splitter InnerLok Pres2fit press2fit Pressfit presstight quartz union y splitter
Polymicro Technologies (a division of Molex) was the first company to mass produce fused silica capillary for the entire capillary gas chromatography market. That was thirty years ago and they are still the single largest manufacturer of the materials. (Polyimide coated, fused silica capillary for GC columns was an HP invention, but they reserved their production for themselves, alone.) Polymicro has made more GC capillary than anyone on the planet, by far: they are considered the experts and they are exceptionally good at what they do, of that there is no doubt. I started my career at Polymicro in the late 1980: I...
Instructions: IQ’s Sapphire™ Wafers for Cutting GC Capillary Columns
capillary chromatography Clean cut column leaks column repair column repair union cracked column cutting fiber fixing a broken column fused quartz fused silica gas chromatography glass fragments glass union glass y splitter InnerLok Pres2fit press2fit Pressfit presstight quartz union y splitter
Cutting capillary and making gas-tight seals is critical to good GC practice and making seals on silica press-fit connectors requires almost perfect cuts (unless you are using Pres2fit™ connectors). Cleanly cut ends are also important for CE for minimizing distortions of the electric field at the column ends. Capillary: The first thing that the separation scientist needs to understand is that not all silica capillary is the same. There are three major producers of GC and CE capillary around the world in Australia, Germany and in the USA. While very similar in materials of production, the differences in production methods...
Smooth Passage™ Holmium Fiber Tips on ProFlex™ LLF
2100nm AccuFlex Accumax AccuTrac ACMI laser fiber calculase chips Clean cut cutting fiber dornier Duotome EndoBeam Fiber Flexiva fused silica GreenLight high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz KTP Laser Laser laser fiber Laser Lithotripsy laser machining Lasersafe litho laser Lumenis medilase medilase H20 micromachining MoXy OmniPulse optical fiber Optifiber ProFlex ProFlex LLF ProGlide ProGuard Prostate Surgery quanta laser richard wolf scope safe Scopesafe SideLite Slimline stonelight SureFlex Thulium thulium laser thulium laser fiber TracTip Trimedyne yellowstone
In the course of studying other manufacturers' holmium laser fibers we sometimes observe surprising differences. In this case, we knew that our tips were different -- heck, we gave them a special name -- but just how much difference they made was the surprise. The two fibers in the photo are "1000 micron", meaning they have either a 910 μm or 940 μm core inside a 1 mm diameter glass cladding. The upper one was made by the manufacturer of the laser upon which the two fibers were used and the lower one is our Smooth Passage™ Tip on ProFlex™ LLF. Both fibers...
How to Properly Cut Capillary Columns
chips Clean cut cracked column delaminated polyimide glass fragments
Cleanly cut column ends are important in CE for minimizing electric field distortions, but in GC a bad cut can cause leaks or even catastrophic column failure.
Proper cutting technique eliminates glass fragment generation, minimizes the probability of cracks and provides a square cut that is free of chip and tangs with the circumference of polyimide intact.