We propose a technique to decompose a 3D digital shape into a set of interlocking pieces that are easy to be manufactured and assembled. The pieces are designed so that they can be represented as a simple height field and, therefore, they can be manufactured by common 3D printers without the usage of supporting material. The removal of the supporting material is often a burdensome task and may ...

BACKGROUND Z-effect and reverse Z-effect are complications that arise from the surgical treatment of pertrochanteric fractures of the femur with proximal femoral nails (PFN) comprising two interlocking head screws. Such complications are induced by the migration of screws in opposite directions, which may lead to failure of the osteosynthesis. FINDINGS The paper describes three cases of pertr...

The paper presents a novel model for interlocking system. Current construction of interlocking system is based on double channel fault-tolerance and fail-safe structure implemented into one or two rack-mounted devices. Field elements like switches and signals received commands and power supply via separate cable network. This solution is expensive and the reason for this fact is price for cable...

Intramedullary interlocking tibial nailing is usually performed using an image intensifier. But being expensive, it is not available in the most of the hospitals of resource-poor countries of the world. The purpose of this study is to analyze the results of interlocking nailing without the use of an image intensifier. This is the retrospective study of 55 diaphyseal tibial fractures treated wit...

In a circuit environment that is becoming increasingly sensitive to dynamic power dissipation and noise, and where cycle time available for control decisions continues to decrease, locality principles are becoming paramount in controlling advancement of data through pipelined systems. Achieving fine grained power down and progressive pipeline stalls at the local stage level is therefore becomin...

PURPOSE To present our preliminary experience with the recently developed interlocking detachable coils in the treatment of intracranial aneurysms. METHODS Two aneurysms of the basilar tip, two of the internal carotid artery, and one of the posterior inferior cerebellar artery were treated by an endovascular technique using interlocking detachable coils. Three of the patients had undergone un...

To compare the intrinsic stability of two distal interlocking screw orientations for tibial nailing of distal third tibial diaphyseal fractures without isthmal support, six Depuy (Warsaw, Indiana) tibial intramedullary nails were implanted in simulated distal tibiae. The constructs received both two parallel (medial to lateral) and two perpendicular (one medial to lateral, one anterior to poste...

The development of computer controlled Railway Interlocking Systems (RIS) has seen an increasing interest in the use of Formal Methods, due to their ability to precisely specify the logical rules that guarantee the safe establishment of routes for trains through a railway yard. Recently, a trend has emerged about the use of statecharts as a standard formalism to produce precise specifications o...

PURPOSE To assess the outcome of unreamed intramedullary nailing through the lateralised entry point using oblique proximal and biplanar distal interlocking screws. METHODS 15 men and 3 women aged 25 to 58 (mean, 37) years underwent unreamed intramedullary nailing with oblique proximal and biplanar distal interlocking screws for proximal third metaphyseal tibial fractures. The entry point was...