Instrumentarium Corporation

Pekka Ihalainen

Juhani Martti

Jukka Salminen

The invention concerns a devicefor aiming an objectin an X-ray imaging apparatusprovided with a radiographic imaging detector, a radiation source, and transfer means for moving e.g. the radiation source into different points along a predetermined path P. Said device comprises at least one laseremitting visible light, and e.g. at least two light guides having first ends and second ends, said first ends connected to said laser for receiving said visible light. Each of said second endsprovides a light beam, and these light beamsare directed towards said imaging detector with an angle of convergence K. The light beams are adjusted to intersect in a predetermined focus Fpoint, which is visible and indicates the proper position of the targetinside the object.

Positioning device and method in X-ray imaging systems

An x-ray apparatus for intraoral imaging applications includes a linkage mounted on a support structure, to which is connected an x-ray source for generating x-radiation and directing same to a receiver instrument placed in a patient's mouth. The linkage includes a first arm member, articulated to the support structure and adapted to be pivotable about a substantially vertical axis, a second arm member, connected to the end of the first arm member spaced from the support structure and adapted to be pivotable around a substantially vertical axis and a horizontal axis, and a third arm member, connected to the opposite end of the second arm member and adapted to be pivotable around a substantially horizontal axis, the unsupported end of the latter having the x-ray source mounted thereon with an articulated joint, which allows pivoting of the x-ray source to various positions.

X-ray apparatus for intraoral imaging applications

In an arrangement for connecting a dental X-ray imaging sensor to a holder; the sensor () is a flat piece () having a planar radiation sensitive area, and at least one communication line () connected to said radiation sensitive area for data transfer; and the holder () is an elongated body having a first end provided with means for detachable connection of said sensor. The sensor has a peg () projecting from said flat piece. The peg is provided with a widened outer end and a neck between said outer end and said flat piece. Further, the neck has a configuration with a plurality of alternate larger diameters and smaller diameters. The holder has at its first end a fork () with a gap, which is adapted to fit onto said neck at least in two different positions. The interaction between the fork and the larger and smaller diameters of the neck prohibits unintended pivot of said sensor in respect to the holder.

Connection between X-ray sensor and holder

The invention relates to an articulated arm system ( ) for attaching different medical imaging devices ( ) to support structures ( ) in an articulated manner. The articulated arm comprises at least one parallelogram device ( ) including a counterbalancing mechanism for holding the articulated arm and the device ( ) supported by it in place when the device is located in the desired imaging position. The system further comprises braking and/or locking means ( ) which act on at least one strut bar ( ) of the said at least one parallelogram device ( ) and/or on the at least one additional strut bar ( ) in order to prevent mutual linear movement of the strut bars ( ) of the parallelogram device, and which braking and/or locking means comprise actuators ( ).

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Helsinki, Finland

Pekka Ihalainen