FDA Adverse Event Malfunction Summary report: N

NPS-BPS MPS/PPS

MDR report key: 89522 · Received May 6, 1997

Report

Report Number
1121753-1997-00016
Event Type
Malfunction
Date Received
May 6, 1997
Date of Event
July 6, 1994
Report Date
April 16, 1997
Manufacturer
NUCLETRON CORP.
Product Code
IWB
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
GM
Reporter Occupation
INVALID DATA

Narratives

Description of Event or Problem · 1

FOR SOFTWARE V 8.12, SPECIFIED ACTIVITY IS NOT CORRECT AFTER CHANGING WEIGHTS. THE DWELL WEIGHTS ARE ASSUMED TO BE RELATIVE FACTORS NORMALIZED TO 1. IF, HOWEVER, INSTEAD OF 1 ALL DWELL WEIGHTS ARE CHANGED TO 0.5, THE REFERENCE DOSE RATE IS MULTIPLIED BY 0.5, AND ALL TIMES ARE CORRECTLY MULTIPLIED BY 2. IF ONE OR MORE DWELL WEIGHTS ARE NOW CHANGED, BUT TO THE SAME VALUE (0.5), THE REFERENCE DOSE RATE BASED ON 0.5 IS AGAIN MULTIPLIED BY 0.5.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 NPS-BPS MPS/PPS RADIOTHERAPY TREATMENT PLANNING SYS IWB NUCLETRON CORP. MPS V 8.12 *

Patients

Seq Age Sex Outcome Treatment
1 * Other