Patent ID: 8900247
Filing Date: 2014-12-02
Classification: A61B

Abstract:
1. A measuring and guiding device, comprising: a pair of rotary arms, each of the rotary arms comprising: a first shaft, having a first end portion and a second end portion; a first joint body, being disposed at the first end portion; and a second joint body, being disposed at the second end portion, wherein the second joint body includes a spherical hollow space; a connector, comprising an upper joint body and a lower joint body, extending through each of the first joint bodies and connecting the pair of rotary arms together such that the pair of rotary arms are angularly adjustable relative to each other; and a pair of fixators, each of the fixators comprising: a second shaft, having a third end portion and a fourth end portion; a third joint body, being disposed at the third end portion and joined with one of the second joint bodies with an included angle being adjustable; and a guiding portion, being disposed at the fourth end portion, wherein the third joint body is of a spherical form, wherein the first joint bodies, the second joint bodies and third joint bodies are configured to cooperatively adjust at least one of an angle of and a distance between the guiding portions, each of the second joint bodies are connectable to a corresponding one of the third joint bodies such that each fixators is angularly and rotatably adjustable relative to a corresponding rotary arm, the connector is configured to fixedly fasten the pair of rotary arms relative to each other, each of the first joint bodies is an annular structure, and surfaces of the two annular structures that contact with each other are further formed with an engaging construction respectively, each of the first hafts further has a hollow portion which accommodates a sliding shaft piece, and the connector presses against and contacts with ends of the sliding shaft pieces so that the other end of each of the sliding shaft pieces presses against and contacts with one of the third joint bodies, and when the upper joint body and lower joint body are locked, movement between the first joint bodies and movement between each fixator and a respective rotary arm are locked simultaneously.