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| Model Number |
APB-3.5-6-3D-ES |
| Medical Device Problem Codes |
Separation Failure (2547); Detachment of Device or Device Component (2907); Material Deformation (2976)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
11/05/2024
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Type of Reportable Event
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Malfunction
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Additional Manufacturer Narrative
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Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
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Event or Problem Description
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Medtronic received a report that the axium coil prematurely detached/separated and the pushwire was found bent/broken.The patient was undergoing surgery for treatment of a saccular, unruptured aneurysm in the left m1 with a max diameter of 4 mm and a 4 mm neck diameter.It was noted the patient's blood flow was normal and vessel tortuosity was minimal.It was reported that the left m1 bifurcation aneurysm, during the operation, bare embolization was used to embolize the aneurysm.Ap b-3.5-6-3d-es was selected as the first coil when filling the coil.There was no abnormality in hydration, no resistance in pushing, and it smoothly entered the aneurysm body to complete hoop formation.The detachment point coincided with the detachment point of t he coil-filling microcatheter sl-10.After angiographic embolization was good, ready to detach.However, after breaking the wire, the coil could not be detached.After many unsuccessful attempts, had no choice but to withdraw the coil and discuss surgery again.After the spring coil was taken out of the body, it was automatically detached and separated into two parts.After the dense mesh tb3x20 was placed, the surgery was successfully completed.It was reported there was coil separation/break/premature detachment.The implant coil was removed from the patient.There was no surgical or medicinal intervention required.The pushwire was bent or broken.This was not done on purpose.There was no friction or difficulty during delivery.The physician did not reposition the coil.The physician did not attempt to detach the coil.The physician did rotate the delivery pusher during the procedure.The continuous flush was administered during the procedure.The reported device and any accessory devices were prepared as indicated in the instructions for use (ifu).No patient symptoms or further complications were reported as a result of this event.Ancillary devices include an sl10 microcatheter.
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Additional Manufacturer Narrative
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Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
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Event or Problem Description
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Additional information received that the coil did not detach prematurely, the spring coil was detached multiple times through the ta il end in the tumor, but it was not detached successfully.The coil did not break or separate at any position other than the detachment point.The first time was failed to detach and also confirmed the detachment point and situation of forming a hoop several times.Tried manual detachment; tried multiple detachments, at least five times.This coil was implanted for the first time, and after un successful detachment, performed dense mesh implantation.
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Additional Manufacturer Narrative
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H3: product analysis #(b)(4): equipment used- video inspection system (m-85519), ruler (m-83361), camera (panasonic lumix dmc-zs5).Drawing(s) referenced: dwgs50670 rev.N; dwgs50523 rev.E; dwgs50566 rev.A.As found condition- three proximal coil pusher segments (up to the break indicator), one distal pusher segment, and one implant coil were returned for analysis within a shipping box; within a resealable plastic biohazard pouch and within an opened axium prime inner pouch.Visual inspection/damage location details: (first proximal pusher segment) the actuator interface was found securely attached to the coupler tube.The pusher was found broken at the break indicator with the release wire fully retracted out of the distal pusher segment (figure f).The coin was found undamaged.(figure g).(second proximal pusher segment) the actuator interface was found securely attached to the coupler tube.The pusher was found broken at the break indicator with the release wire fully retracted out of the distal pusher segment (figure j).The coin was found undamaged (figure k).(third proximal pusher segment) the actuator interface was found securely attached to the coupler tube.The pusher was found broken at the break indicator and ~2.0cm from the break indicator with the release wire fully retracted out of the distal pusher segment (figure l).The release wire was found broken and not returned for the analysis.The coin (distal portion of the release wire) was likewise not returned.(distal pusher segment) the one distal pusher segment was found broken at the break indicator.The release wire and coin were found fully retracted out of the pusher/lumen stop.The shield coil was found undamaged.The lumen stop was found damaged (ovalized) (figure o).Dried blood was found within the lumen stop.The retainer ring was found undamaged.(implant coil) the implant coil was found already detached.The implant coil was found damaged (figure r).The implant was stretched to expose the detach element.No damages or irregularities were found with the detach element or detach element ball (figure s).Testing/analysis ¿ (first proximal pusher segment) the coin was measured to be ~0.088mm @ 0.063mm, ~0.100mm @ 0.127mm, and ~0.099mm @ 0.275mm, which is within specification (specification: 0.063mm ¿ 0.089mm @ 0.063mm; 0.075mm ¿ 0.105mm @ 0.127mm; and 0.086mm ¿ 0.108 @ 0.275mm).(second proximal pusher segment) the coin was measured to be ~0.087mm @ 0.063mm, ~0.096mm @ 0.127mm, and ~0.098mm @ 0.275mm, which is within specification (specification: 0.063mm ¿ 0.089mm @ 0.063mm; 0.075mm ¿ 0.105mm @ 0.127mm; and 0.086mm ¿ 0.108 @ 0.275mm).(third proximal pusher segment) the coin outer diameter could not be measured as it was not returned.(distal pusher segment) the lumen stop inner diameter could not be measured due to the damaged condition.The retainer ring inner diameter was measured to be 0.0046¿, which is within specification (specification: 0.00455¿ ± 0.00010¿).(implant coil) the detach element ball outer diameter was measured to be 0.0037¿, which is within specification (specification: 0.0038¿ ± 0.00010¿).Conclusion - based on the customer report and device analysis, the customer report of "premature detach.From a non-detach" could not be confirmed but likely to have occurred.The lumen stop was found damaged, indicative of the coin being stuck within the lumen stop, causing the implant to not detach properly.The cause of the stuck coin could not be determined.It is possible that the dried blood found within the lumen stop contributed towards the non-detachment.However, the dried blood would not have caused the coin to become jammed inside the lumen stop to the point of damaging the lumen stop (ovalizing) as found with the returned pusher.It is not clear which of the three proximal pusher segments belong to the reported device.No non-conformance to specifications were found with the returned subassemblies that would contribute towards the reported failure.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
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Search Alerts/Recalls
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