Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10673628 | CIRP Annals - Manufacturing Technology | 2005 | 4 Pages |
Abstract
A rotating cutting tool was developed to remove hard cemented deposits in the heart blood vessels without damaging the soft vessel walls. The new tool has a “grater-like” configuration which is made of anodized aluminum with 20|im high micro-blades on a 2mm diameter tip, and it rotates at 200,000 rpm underwater. An evaluation test demonstrated the feasibility of the new tool by cutting the hard shell, and not the soft white, of a hardboiled egg. The water pressure forms a hydrodynamic film around the tool tip to press down the soft tissue, protecting it from any unwanted cuts.
Related Topics
Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
M. Nakao, K. Tsuchiya, W. Maeda, D. Iijima,