| Model Number |
15 |
| Medical Device Problem Codes |
Inappropriate/Inadequate Shock/Stimulation (1574); Inappropriate Waveform (2536)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
01/10/2022
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Type of Reportable Event
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Malfunction
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Event or Problem Description
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The customer contacted stryker to report that their device failed the user test and logged an event code in the device¿s memory that is indicative of a device failure that could result in a partial loss of defibrillator output energy due to a loss of the negative portion of the biphasic output waveform, resulting in a monophasic shock.Additionally, the defibrillator output energy may be reduced by up to approximately 20% from the selected energy level.As a result, the wrong defibrillation therapy would be delivered, if it were necessary.Upon evaluation of the customer¿s device, stryker observed that the device displayed an ¿abnormal energy¿ message.There was no patient use associated with the reported event.
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Additional Manufacturer Narrative
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Stryker performed an initial evaluation of the customer¿s device and verified the reported issue.The reported and observed issue was isolated to the therapy pcb assembly.
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Additional Manufacturer Narrative
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Stryker further evaluated the customer's device and replaced the therapy pcb assembly.After observing proper device operation through functional and performance testing the device was returned to the customer for use.Stryker further evaluated the removed therapy pcb assembly and determined that the cause of the reported issue was due to transistor, designator q7.Q7 was electrically shorted.
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Event or Problem Description
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The customer contacted stryker to report that their device failed the user test and logged an event code in the device¿s memory that is indicative of a device failure that could result in a partial loss of defibrillator output energy due to a loss of the negative portion of the biphasic output waveform, resulting in a monophasic shock.Additionally, the defibrillator output energy may be reduced by up to approximately 20% from the selected energy level.As a result, the wrong defibrillation therapy would be delivered, if it were necessary.Upon evaluation of the customer¿s device, stryker observed that the device displayed an ¿abnormal energy¿ message.There was no patient use associated with the reported event.
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Search Alerts/Recalls
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