Counterbalancing mechanism for a mobile radiographic imaging apparatus
AssigneeKoninklijke Philips N.V.
InventorsSanjay Bharadwaj Pulijala, K. N. Darshan
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Abstract
There is provided a positioning system for a mobile radiographic imaging apparatus. The positioning system comprises: a fixed column (31) mountable to a chassis of a transport cart, the fixed column supporting a collapsible column (24) that can be extended and retracted relative to the fixed column, the collapsible column supporting an arm assembly that can be translated relative to the collapsible column, the arm assembly being configured to support a radiographic head assembly; and a counterbalancing mechanism which is configured to counterbalance the collapsible column independently of the arm assembly and the radiographic head assembly.
Claims14
A positioning system for a mobile radiographic imaging apparatus, the positioning system comprising:
- a fixed column mountable to a chassis of a transport cart, the fixed column supporting a collapsible column that can be extended and retracted relative to the fixed column, the collapsible column supporting an arm assembly that can be translated relative to the collapsible column, the arm assembly being configured to support a radiographic head assembly;
- and
- a counterbalancing mechanism which is configured to counterbalance the collapsible column independently of the arm assembly together with the head assembly, wherein the counterbalancing mechanism is configured to underbalance the collapsible column and the arm assembly together with the radiographic head assembly and to overbalance another collapsible column and the arm assembly together with the head assembly in order to implement a desired sequence of motion when the positioning system is reconfigured by a user so as to reposition the head assembly.
A mobile radiography system, comprising:
- a positioning system comprising:
- a fixed column mountable to a chassis of a transport cart, the fixed column supporting a collapsible column that can be extended and retracted relative to the fixed column, the collapsible column supporting an arm assembly that can be translated relative to the collapsible column, the arm assembly being configured to support a radiographic head assembly;
- and
- a counterbalancing mechanism which is configured to counterbalance the collapsible column independently of the arm assembly together with the head assembly, wherein the counterbalancing mechanism is configured to underbalance the collapsible column and the arm assembly together with the radiographic head assembly and to overbalance another collapsible column and the arm assembly together with the head assembly in order to implement a desired sequence of motion when the positioning system is reconfigured by a user so as to reposition the head assembly;
- a transport cart having a chassis to which the fixed column of the positioning system is mounted;
- and
- a radiographic head assembly supported by the arm assembly of the positioning system.
Dependencies are inferred from the claim text.