초록 ▼

A light beam leveling device and method utilizable particularly in hemodynamic cardiac monitoring of patients in which a pressure transducer is required to be leveled with the tip of a catheter placed at the heart of a patient. The light beam device, preferably a laser, is placed at the transducer a

A light beam leveling device and method utilizable particularly in hemodynamic cardiac monitoring of patients in which a pressure transducer is required to be leveled with the tip of a catheter placed at the heart of a patient. The light beam device, preferably a laser, is placed at the transducer and is raised and lowered therewith relative to a reference point on the patient corresponding to the level of the tip of the catheter. When the laser beam is projected horizontally as established with associated bubble level means and is directed so as to cause a reflection directly at the reference point, the transducer is assured thereby to be at the level of the catheter tip in the patient. A transparent cylindrical bar at the tip of the laser through which the laser beam passes causes a line of light to be projected at right angles to the orientation of the bar. An associated protractor permits selection of the desired angle of orientation of the line of light projected from the laser. In another embodiment a unit of two side-by-side lasers with associated line forming bars can provide lines of light selectively angularly oriented with reference to each other.

대표청구항 ▼

[ I claim:] [1.] A portable laser unit for use in aligning spaced points comprising,a pen-light sized laser and leveling means directly associated therewith for providing a reference for horizontal orientation of the beam projected therefrom,a transparent bar positioned for transmission of the beam

[ I claim:] [1.] A portable laser unit for use in aligning spaced points comprising,a pen-light sized laser and leveling means directly associated therewith for providing a reference for horizontal orientation of the beam projected therefrom,a transparent bar positioned for transmission of the beam of said laser therethrough to convert said beam to a line of light on surfaces to which it is projected.