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IQ receives US Patent for Right Angle Output Side Firing Fiber April 11 2017

US Patent number 9,618,700 issued today as a stand alone utility patent covering three embodiments of right angle side fire fibers with 19 claims allowed. The invention is an outgrowth of InnovaQuartz new one-piece side firing fiber caps (Patented) where astigmatic distortion is exploited to permit exceeding the ~75 degree off-axis limit of competing technologies. Ironically, through purposeful distortion the invention produces an essentially distortion-free output as compared with the...

From Abe to MoXy™ and Beyond Part 5: More Fibers of the 1990s February 27 2017

John Brekke’s fiber design from 1994 is one of the few lateral fiber designs of the era that remains on the market today, marketed as Scatterfree™ by Laser Peripherals. As can be seen in figures 10 and 11 (below the next paragraph) taken from the first patent, the concept is simple and it does basically work. In contrast to Pon, however, Brekke failed to properly identify the true sources of...

From Abe to MoXy™ and Beyond; Part 3 -- Moses' Math Works January 16 2017

Part 3 is a bit of a departure from my planned sequence for this series. A colleague has graciously permitted me to share a slow motion video that he produced of a generic side fire fiber delivering a single pulse of holmium energy into a beaker of water. Herein I hope to demonstrate that surgical fiber performance can be modeled/predicted, and quite accurately, and that there isn't anything mysterious or magical involved. Sure,...

From Abe to MoXy™ and Beyond; Part 2 -- Abe's Side Fire Solution(s) January 09 2017

Part 1 of this series was mostly a review of Snell's law and Fresnel reflections as they explain the weird output of bevel polished fibers. Here we see some more Snell and Fresnel issues and the earliest Band-Aid® treatments designed to mitigate these issues. Part 2: Abe's Solution(s) Before we get into what Abe saw as solutions to the issues outlined, we should probably address the problem that I alluded...

Side Fire Fiber Technology – From Abe to MoXy™ and Beyond: Part 1 (Basics) December 30 2016

Part 1: Fiber Optics Fundamentals (a prerequisite to understanding side fire fibers) I’ve been told a half dozen tales that purport to describe the origin of fiber optics and likely as many claiming to describe the first side fire fiber, but there is little or no evidence for any stories I have heard over my 30+ years in the field…except the tale of “the Hitachi patent”. Anyone working in side...

Introducing the ProView™ 30X SMA Inspection Microscope December 15 2016

InnovaQuartz is pleased to offer a low cost but high performance solution for inspecting SMA (and Trimedyne in January 2017) terminated laser surgical fibers. This battery powered (batteries included) microscope is equipped with a thread-free SMA (or Trimedyne) port that positions the fiber input face within the field of view with acute angle illumination from below. Every detail of the connector face is exposed: scratches, dirt and burns are detected...

The Power of Collimation III: Moses’ Enthalpy November 07 2016

At InnovaQuartz, we developed a method of making very precise, tiny lenses directly upon the face of an optical fiber. In this third Chapter of The Power of Collimation, I’ll describe just how important this subtle feature really is to the performance of holmium laser URS. In the first Chapter of this blog series, I discussed why holmium lasers launch light into fibers at a substantial fraction of their maximum propagation...

Smooth Passage™ Holmium Fiber Tips on ProFlex™ LLF August 29 2016

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...

All Holmium Laser Fibers are the Same, Right? Part 7: Cladding Modes June 28 2016

All Holmium Laser Fibers are the Same, Right? Part 7: Cladding Modes Ignorance of reality yields solutions that function solely as fantasy. What are ‘Cladding Modes’? ‘Cladding modes’ are almost universally misunderstood as being light rays or modes of propagation that are contained solely within the fiber cladding. https://www.youtube.com/watch?v=I6yjDPo4AHg Snell’s law precludes the containment described in this video (Figure 1 is adapted from the video), a video that is representative of...

All Holmium Laser Fibers are the Same, Right? Part 3: Pulsar HPC Introduction April 11 2016

Before updating this entry, a reader asked a question about a statement I'd made about the flexibility of the Boston Scientific holmium fibers AccuMax™ and Flexiva™ that I answered in the updated Part 2 entry. I am leaving my answer to that question in this entry, for congruity. Pardon the redundancy. Q: ‘How do you know Boston’s AccuMax™ and Flexiva™ are stiffer than ProFlex 200 if, as you say, you’ve never seen...

UV-Purple-Blue Laser Patent Issues October 30 2015

Resurrecting Urine Flow with IQ's Phoenix™ BPH Laser The US Patent Office has informed InnovaQuartz that our multi-wavelength surgical laser, that we have dubbed the Phoenix, has issued (US Pat. No. 9,220,563), precisely one year after it was filed. This laser addresses the deficiencies of other photoselective lasers – photobleaching, charring -- for minimal collateral tissue damage at wavelengths between 380 nm and 450 nm. Phoenix targets multiple tissue chromophores,...

What's Next in Fiber Optics for Urological Surgery? April 02 2015

The fact that fiber optic technology for surgical lasers has steadily improved for two decades is largely due to InnovaQuartz' (IQ) research into fiber failure modes and strategies to overcome those weaknesses. Operating primarily in the background by providing unique solutions for established surgical laser companies, IQ has pushed back boundaries for the science of laser medicine in myriad fields, but none more authoritatively than Urological Surgery. Our patented products and proprietary technologies have...
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