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Articulated arm system for supporting medical imaging devices

  • US 6,732,988 B2
  • Filed: 05/28/2002
  • Issued: 05/11/2004
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. An articulated arm system (20) for attaching a medical imaging device (11) to a support structure (14) in an articulated manner, the articulated arm system comprising:

  • at least one parallelogram device (15a,15b) interposable between the device and the support, said parallelogram device having at least two mutually parallel strut bars (6,7);

    a counterbalancing mechanism for said parallelogram device having at least one additional strut bar (1) and counterbalancing means (16) for holding the articulated arm system and the device (11) supported thereby in place when the device is located in a desired imaging position braking and/or locking means for preventing mutual linear movement of the parallel strut bars (6,7) of the parallelogram device, said braking and/or locking means having a locking piece (2) surrounding said additional strut bar (1), said locking piece having a sleeve part through which said additional strut bar (1) runs, said braking and/or locking means having an actuator for bringing said sleeve part into frictional engagement with said additional strut bar, said actuator comprising a lever arm (3) connected at one end to said locking piece, the other end of said lever arm being subjectable to a loading force (F) for controlling the frictional engagement of said sleeve part with said additional strut bar.

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