Initial reporter occupation - unknown.
Investigation evaluation: our laboratory evaluation of the product said to be involved confirmed the cutting wire securing component located near the distal end of the sphincterotome has disconnected from the catheter.
The cutting wire is intact and remains securely attached to the sphincterotome at the proximal end.
However, due to the catheter and securing component disconnection, the distal end of the cutting wire is no longer connected to the sphincterotome catheter at the distal end.
The securing component has a longer section measuring 3.
0 mm and a shorter section measuring 2.
0 mm, therefore no part of the device is missing.
The breakthrough channel has also been utilized completely and liquid was observed inside of the catheter.
The cutting wire exhibits slight evidence of a cautery application (blackening of the cutting wire was noted).
A product discrepancy or anomaly that could have contributed to this reported occurrence was not observed.
The device history record for the lot number said to be involved was reviewed.
A discrepancy or anomaly was not observed with the product that was released for distribution.
Investigation conclusion: a definitive cause for this observation could not be determined because the actual use conditions could not be duplicated in the laboratory setting.
Due to a variety of clinical conditions such as patient anatomy, endoscope position or progression of disease state, we could not reproduce the actual conditions of product usage during our laboratory analysis.
This limits our ability to conclusively determine a cause.
Separation of the cutting wire securing component and the catheter can occur if the tip of the sphincterotome is over flexed.
The instructions for use caution the user: "do not over flex or bow tip beyond 90 degrees, as this may damage or cause cutting wire to break.
" other factors that can contribute to separation of the cutting wire securing component and the catheter include manipulating the handle with the catheter in a coiled position or with the precurved stylet inside the cannulating tip.
The instructions for use advise the user: "upon removing device from package, uncoil and straighten sphincterotome.
Carefully remove precurved stylet from cannulating tip.
" the instructions for use contain the following comment: "note: do not exercise handle while device is coiled or precurved stylet is in place, as this may cause damage to sphincterotome and render it inoperable.
" prior to distribution, all fusion omni-tome sphincterotomes are subjected to a visual inspection and functional test to ensure device integrity.
The functional test includes bowing the sphincterotome to ensure the distal end responds to handle manipulation.
Corrective action: a review of the complaint history was conducted.
The likelihood of occurrence is considered rare.
Corrective action is not warranted at this time based on the quality engineering risk assessment.
Quality assurance will continue to monitor for complaint trends and reassess the risk assessment results as post market feedback continues to become available.
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Prior to an endoscopic procedure, the physician prepared a cook fusion omni-tome sphincterotome.
The physician pulled the cutting wire and the cutting wire was broken.
There was no reportable information at this time.
Information was received on 05-may-2020 that the cutting wire securing component separated from catheter but did not detach.
The laboratory evaluation found evidence of use; however, the customer was asked to confirm if the device was used and stated the device was not used on a patient.
This observation was made prior to patient contact; there was no impact to the patient.
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