Probe positioning system
Encyclopedia
A probe positioning system is a tool for the positioning of a (hand-held) measuring device, such as an ultrasound transducer in a fixed, predetermined place to the object, such as a patient. The operation of these systems varies from completely manual, to completely automated.
In (semi-) automated probe positioning systems, a control system
corrects for the movement of the object or disturbances in the environment. These systems can use a tilt, pressure or other sensor carried by the probe to collect positional data. The positioner, such as a robotic arm
is coupled to the probe. The positioner can provide roll and pitch control as well as translating the probe in lateral and longitudinal directions. A processor
receives signals from the sensors corresponding to the actual orientation of the probe and controls the positioner to adjust the orientation of the probe until the desired position is achieved.
In (semi-) automated probe positioning systems, a control system
Control system
A control system is a device, or set of devices to manage, command, direct or regulate the behavior of other devices or system.There are two common classes of control systems, with many variations and combinations: logic or sequential controls, and feedback or linear controls...
corrects for the movement of the object or disturbances in the environment. These systems can use a tilt, pressure or other sensor carried by the probe to collect positional data. The positioner, such as a robotic arm
Robotic arm
A mechanical arm is a robotic, usually programmable, with similar functions to a human arm. The links of such a manipulator are connected by joints allowing either rotational motion or translational displacement. The links of the manipulator can be considered to form a kinematic chain...
is coupled to the probe. The positioner can provide roll and pitch control as well as translating the probe in lateral and longitudinal directions. A processor
Central processing unit
The central processing unit is the portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system. The CPU plays a role somewhat analogous to the brain in the computer. The term has been in...
receives signals from the sensors corresponding to the actual orientation of the probe and controls the positioner to adjust the orientation of the probe until the desired position is achieved.
External links
- http://www.patentstorm.us/patents/7128711.html
- http://www.wipo.int/pctdb/en/wo.jsp?WO=2000%2F51511&IA=WO2000%2F51511&DISPLAY=CLAIMS
- http://www.sintef.no/content/page1____4777.aspx