Inversed, capsized, and flipped knots

[X1]

Inversed, capsized, and flipped knots: Unravelling a geometrical tangle.
by J. Joris Hage
Knee Surgery, Sports Traumatology, Arthroscopy
December 2007, Volume 15, Issue 12, pp 1514-1515

http://link.springer.com/article/10.1007/s00167-007-0407-8/fulltext.html
Free Dowload at :
http://link.springer.com/article/10.1007%2Fs00167-007-0407-8?LI=true

Also, by the same author:

Locking, jamming, and ratchet mechanisms of sliding surgical knots topologically revisited.
2009: J Joris Hage; Lydia P E van der Steen
World journal of surgery 2009;33(4):751-7.

http://link.springer.com/article/10.1007/s00268-008-9904-2/fulltext.html

How Capsizing, Flipping, and Flyping of Traditional Knots Can Result in New Endoscopic Knots: A Geometric Review

Journal of the American College of Surgeons
Volume 205, Issue 5 , Pages 717-723, November 2007

http://www.deepdyve.com/lp/elsevier/how-capsizing-flipping-and-flyping-of-traditional-knots-can-result-in-v4BSELfbXi

[Dan_Lehman]

   Quite interesting!  Good find!


--dl*
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[agent_smith]

Yes indeed... nice find and contribution to this forum X1.

These are interesting structures based around the Purcell - ie an adjustable slide and grip hitch (however, instead of a double strand, its built around a single strand). I use the Purcell in many applications - eg as an energy absorbing fall-arrest lanyard when undertaking activities at height. This might have applications as a foot stirrup in rope ascending techniques (as an example).

Mark