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A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
Published on: May 15, 2010
Pulsed electron avalanche knife: new technology for cataract surgery.
Siegfried G Priglinger1, Daniel Palanker, Claudia S Alge
1Department of Ophthalmology, Ludwig-Maximilians-University, Munich, Mathildenstr 8, 80336 Munich, Germany. siegfried.priglinger@med.uni-muenchen.de
The British Journal of Ophthalmology
|January 19, 2007
Summary
The pulsed electron avalanche knife (PEAK-fc) offers precise, cold dissection for complex cataract surgeries. This innovative device demonstrated safety and effectiveness in challenging cases, including congenital and traumatic cataracts.
Area of Science:
- Ophthalmology
- Surgical Technology
- Medical Devices
Background:
- The pulsed electron avalanche knife (PEAK-fc) is a novel pulsed electrosurgical device.
- It enables precise, "cold," and traction-free tissue dissection.
Purpose of the Study:
- To assess the surgical applicability and safety of PEAK-fc.
- To identify potential complications of PEAK-fc in complicated cataract surgery.
Main Methods:
- The study involved diverse cataract cases: congenital, senile, mature, traumatic, and intumescent cataracts.
- Procedures included anterior/posterior capsulotomies, iris synechiolysis, and dissection of opacified capsules.
- PEAK-fc settings: 500-700 V, 0.1 ms pulse duration, 40-100 Hz repetition rate.
Main Results:
- Successful and safe anterior and posterior capsulotomies in all cases.
- Sharp capsulotomy edges with minimal collateral damage.
- Effective release of posterior iris synechiae and dissection of anterior capsule opacification without complications.
Conclusions:
- PEAK-fc is a valuable cutting device for complex cataract surgeries.
- It is particularly beneficial for mature, congenital, and traumatic cataracts.
- The device is also useful for managing anterior segment complications post-intraocular inflammation.
