A Bleeding and Broken System

A Broken System

Persistent vaginal bleeding in a patient with a broken Implanon.

A 29-year-old woman with an Implanon contraceptive device in situ presented with persistent and prolonged vaginal bleeding. The implant had been inserted 2 years previously; the patient had been happy with it and had been mainly amenorrhoeic with the occasional light period. She was concerned that the implant had broken during a game of 'rough and tumble' with her son in August 2000. Since the ...

A Virtual Restoration System for Broken Pottery

Aiming to assist the archaeologist to restore excavated sherds, a virtual restoration system for pottery shape relics is developed based on their two characteristic features: symmetry axis and profile. An effective method of estimating the axis of the surface of revolution is presented first; then an approach for computing the complete profile is proposed. Because some pottery contains holes or...

A Broken Metallic Tracheostomy Tube

The US patent system is broken.

In discussions in this issue of RBM Online relating to a patent granted to Auxogyn, Professor Renee Reijo Pera claims this is not about a "broken patent system". I shall demonstrate how dysfunctional the patent system has become and how much in denial 'inventor' Renee Reijo Pera is about her invention differing from a naturally occurring phenomenon.