LC / LP DSA smart handle and commissioning

2013-07-09 15:34:10

Huang Huang mirror, Liu Manfang

(Nanfang Hospital, First Military Medical University Instrument Division, Guangzhou 510515)

LC / LP DSA is the U.S. company GE bidirectional cardiovascular Digital Instrument. The device can be from two directions on cardiovascular fluoroscopy and photography, so that subjects intravascular injection of contrast agent to halve the number of its two arms one floor of "C arm" and a high shelf of the "Q arm" complement each other, one can achieve bi-directional perspective and photographic functions, control arm movement is both smart handle (U.S. patent). An operator using only one hand can deftly manipulated, the eye does not leave the monitor case, the two arms for positioning rapidly.

The main function of a smart handle

(1) ROCKER SWITCH [LC L-ARM, C-ARM, LP PIVOT]

Swing keys [Control anteroposterior and lateral C-arm L arm pivot];

(2) TWIST HANDlE [LC PIVOT, LP C-ARM]

Twist the key [control anteroposterior and lateral C-arm pivot];

(3) SIDE LEVER [II MOTION]

Movement keys [Control image intensifier move up and down].

2 Smart handle circuit composed primarily of the Hall sensor, which with LC / LP preamplifier board, interface board, CPU board, and mechanical systems jointly controlled arms wide variety of sports. In addition to the Department, the handle must be an external computer intelligent commissioning, the required data will be written to the EEPROM of the CPU board to use. Debugging Tools required are:

(1) Buddhist monk's robe with MSDOS operating system, general-purpose computer;

(2) RS232 serial line;

(3) LC / LP debugging software.

3 debugging method

The LC / LP J18 socket on the motherboard via RS232 serial line interface with an external general purpose computer is connected and confirm intelligent handle and LC, / LP is connected to the port, in the debugging process be careful not to press the motion to allow the key switch.

3.1 Selecting swing keys (ROCKER)

(1) Press and hold this key counterclockwise until the debugger "S / H" zone "ROC" display value drops - 31 so far, key people "ENTER";

(2) Hold down the key clockwise until the debugger "S / H" zone "ROC" until the display value rose to +31, key people "ENTER";

(3) release the button, the debugger "S / H" zone "ROC" display values promoted to 0, key people "ENTER".

3.2 Select twist key (TWIST)

(1) counterclockwise grasp this key until the debugger "S / H" zone "TWS" display value drops - 31 so far, key people "ENTER";

(2) clockwise to grasp this key until the debugger "S / H" zone "TWS" until the display value rose to +31, key people "ENTER";

(3) release the button, the debugger "S / H" zone "TWS" display values promoted to 0, key people "ENTER".

3.3 Select the shift key (LEVER)

(1) Vertical pressed this button until the debugger "S / H" zone "LVR" display value drops - 31 To this end, key people "ENTER";

(2) Vertical Lift this key until the debugger "S / H" zone "LVR" until the display value rose to +31, key people "ENTER";

(3) release the button, the debugger "S / H" zone "LVR" display values promoted to 0, key people "ENTER".

After debugging data will be deposited LC / LP CPU boards within the EEP-ROM.

If any of the debugging process misuse, Machine Debug menu area and LC / LP CPU board LED will display the error code "68." In this case, as long as the LC, / LP CPU board and press the reset button on the interface board, you can clear the error, restart debugging.

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