MAUDE Adverse Event Report: MEDELA LLC PUMP IN STYLE ADVANCED - ON-THE-GO TOTE; PUMP, BREAST, POWERED

Model Number	57063
Health Effect - Clinical Code	Unspecified Infection (1930)
Date of Event	06/11/2019
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Customer service conducted troubleshooting with the customer, including inspecting the faceplate and back plate for damage; inspecting and cleaning the diaphragm; disassembling, inspecting, cleaning and reassembling the kit and tubing set.The troubleshooting did not resolve the issue.The customer was sent a replacement pump and return of her original pump was requested for testing/evaluation.In follow up with a complaint handler on 06/25/2019, the customer indicated that she developed mastitis on (b)(6) 2019 and was prescribed an antibiotic, which had resolved the mastitis.She additionally indicated that the replacement pump was working without issue.Based on the results of (b)(4), it cannot be definitively concluded that the pump caused or contributed to the customer's mastitis.The estimated incidence of mastitis in lactating women, whether using a breast pump or not, according to published clinical literature can be as high as 33%.In fact, clinical guidelines suggest the use of a breast pump to facilitate withdrawal of breast milk during bouts of mastitis.The complaint rate of mastitis across all reported failures, across all medela breast pumps, is 0.008% for the period of january 2013 to august 2017.Mastitis is usually a benign, self-limiting infection with few consequences for the suckling infant.The risk of mastitis is higher among women who have breastfed previously, especially those with a history or mastitis." riordan & wambach, 4th ed.P.294: breastfeeding and human lactation.Mastitis requires prompt medical attention for the mother for pain relief and prescription antibiotics to avoid progression to overwhelming sepsis.
Event or Problem Description
On (b)(6) 2019, the customer alleged to medela llc that she was experiencing low suction with her pump in style breast pump.She additionally alleged that she had mastitis due to the low suction and she had seen her healthcare provider, who prescribed her antibiotics.
Additional Manufacturer Narrative
The device was evaluated on 07/15/2019 with the customer's parts as received and it failed vacuum testing.The vacuum test was then conducted using a lab kit with the customer's pump and it passed.Refer to attached product evaluation.When a pump fails with the customer kit, but not the lab kit, any issue is typically attributable to the kit, not the pump.In this case, it was noted in the evaluation that the customer's connectors, tubing and valves had residue on them and the customer's membranes were not laying flat.Any foreign contaminants that hinder the device's ability to form an adequate vacuum seal could potentially result in lower suction.It is very difficult to determine exactly how much contamination under normal use is needed for pump vacuum to suffer, but it is a known failure mode causing low suction.The pump in style instructions for use details cleaning procedure for the parts and accessories.It is also a common troubleshooting item to check.The customer's report of low suction was confirmed.

• Brand Name: PUMP IN STYLE ADVANCED - ON-THE-GO TOTE
• Common Device Name: PUMP, BREAST, POWERED
• Manufacturer (Section D): MEDELA LLC; 1101 corporate dr; mchenry IL 60050
• MDR Report Key: 8784421
• Report Number: 1419937-2019-00093
• Device Sequence Number: 2398001
• Product Code: HGX
• UDI-Device Identifier: 00020451570631
• UDI-Public: 00020451570631
• Combination Product (Y/N): N
• Initial Reporter State: CO
• Initial Reporter Country: US
• PMA/510(K) Number: K031614
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: consumer
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Lay User/Patient
• Device Model Number: 57063
• Device Catalogue Number: 57063
• Device Lot Number: 448465
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 07/11/2019
• Initial Date Received by Manufacturer: 06/19/2019
• Supplement Date Received by Manufacturer: 07/15/2019
• Initial Report FDA Received Date: 07/12/2019
• Supplement Report FDA Received Date: 07/25/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other