Advanced speculum

摘要

It is described a surgical instrument such as a speculum comprising longitudinally extending cups-shaped pivotably mounted blades manufactured from a moldable material, such as plastic or metal. Each blade has an inwardly curved circumferential edge with an edge face which is provided with a parting line resulting from molding the blades. Negative effects such as possible injuries associated with parting lines or steps can be mitigated by inwardly relocating these lines on an edge face of the inwardly curved circumferential edge.

主权项

1. An instrument comprising elongated cup-shaped pivotably mounted blades manufactured from a mouldable material, wherein at least one blade has an inwardly curved circumferential edge provided with a parting line resulting from moulding the blade, which circumferential edge has a supporting surface including an outer radius surface, an inwardly extended surface, and an inner radius surface, wherein the parting line is provided on one of, or between, the outer radius surface and the inner radius surface of the supporting surface, and away from the blade outer circumference.