US 5,707,360 AGranted

Target apparatus for linearly inserting an instrument into a human body

AssigneeLAP GmbH Laser Applikationen

InventorArmin Rockseisen

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Abstract

The invention relates to a target apparatus for linearly inserting an instrument into a human body comprising a computer tomograph for determining the piercing spot and marking it, the improvement comprising: a slide which is adjustably guided above the gantry of the computer tomograph along a horizontal guide means, preferably along a transversal plane, which slide can be arrested in any position along the guide means, a laser device for producing a target mark in space, a supporting means for mounting the laser device to the slide for being pivoted about a horizontal axis such that the beam of the laser device is pivoted in a vertical plane and further comprising an angular scale attached to the slide for indicating the pivoting angle of the laser device.

Claims10

Dependent claims

A target apparatus for guiding the insertion of an elongated instrument comprising a front end and a back end into a human body comprising:

a) a computer tomograph having a gantry for detecting a spot on said human body where said elongated instrument is to be pierced into said human body;
and
b) a horizontal guide means above said gantry and a slide movable along said guide means, said guide means having arresting means to arrest said slide in any position along said guide means, said slide comprising a support means thereon, said support means retaining a laser device, said laser device generating at least one laser beam and said at least one laser beam projecting a point or cross on a surface illuminated along a line intersecting with said detected spot, and said laser device being supported for rotation about a horizontal axis so that the at least one laser beam of said laser device is moved in a vertical plane, said slide further comprising an angular scale for indicating the angle of said laser device with respect to said guide means.

Dependencies are inferred from the claim text.