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Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Self-closing aneurysm clip: a historical review
Manuel Dujovny1, Celso Agner, Onyekachi Ibe
1Department of Neurosugery, Department of Engeneering, Wayne State University, Detroit, MI, USA. manueldujovny@hotmail.com
Neurological Research
|September 3, 2010
Summary
Self-closing aneurysm clip failures stemmed from material issues like corrosion and fracture. Titanium and cobalt-chromium alloys offer superior biocompatibility and imaging properties for improved neurosurgical safety.
Area of Science:
- Neurosurgery
- Biomaterials Science
- Medical Device Engineering
Background:
- The historical evolution of self-closing aneurysm clips spans five decades.
- Understanding material science is crucial for neurosurgical device development.
Observation:
- Clip malfunction is linked to inappropriate clip strength and material degradation.
- Corrosion and fracture were observed in certain stainless steel alloys (301, 401, 402, 58, 17-7 PH).
Findings:
- 316MOSS, Elgiloy, Phynox, and titanium alloys demonstrate enhanced biocompatibility and corrosion resistance.
- Titanium clips are artifact-free in computerized tomography, unlike other aneurysm clips.
- The Federal Drugs and Administration/American Society of Testing and Materials (FDA/ASTM) significantly influenced safety advancements.
Implications:
- Selection of appropriate biomaterials is critical for the long-term success and safety of aneurysm clips.
- Advancements in materials science can reduce neurosurgical complications and improve patient outcomes.
- Standardization through regulatory bodies like the FDA/ASTM enhances medical device safety and reliability.
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