MAUDE Adverse Event Report: TELEFLEX MEDICAL RUSCH EMERALD FO MACINTOSH BLADE; LARYNGOSCOPE, RIGID

Model Number IPN049940

Device Problem Use of Device Problem (1670)

Patient Problem Insufficient Information (4580)

Event Date 06/01/2022

Event Type  malfunction  

Event Description

Customer reported that: "the blades are getting stuck on the handle".No patient injury or consequence reported.Patient condition reported as "fine".

Manufacturer Narrative

Qn# (b)(4).Complaint verification testing could not be performed as no sample was returned for analysis.A device history record review could not be conducted since the lot number was not provided.Without the device to evaluate, the complaint could not be confirmed, and the probable cause could not be determined from the available information.Teleflex will continue to monitor and trend for reports of this nature.If the sample becomes available at a later date a follow up report will be submitted with investigation results.

Event Description

Customer reported that: "the blades are getting stuck on the handle".No patient injury or consequence reported.Patient condition reported as "fine".

Manufacturer Narrative

Qn# (b)(4).The customer returned one emerald rusch mac 3 blade for evaluation.The blade was visually inspected for signs of abuse/misuse/damage.There were significant scratches or burrs found on the ball bearings.There were also multiple scratches found adjacent to the ball bearing on the base of the blade which are indicative of normal wear.A dimensional inspection was performed on the base of the blade with reference to the product drawing.The blade was measured using a calibrated caliper along the length and width of the base.The length was measured to be 0.933" (23.698mm), which is within the specification of 23.3mm +/- 0.50mm.The width was measured to be 0.531" (13.487mm), which is within the specification of 13.35mm +/- 0.15mm.No defects no anomalies were observed during the dimensional analysis.The mac 3 blade was functionally tested with two different lab inventory handles (rusch greenspec and rusch polaris) per ifu.The ifu states, "attach blade to handle.Click in place.To switch on, pull blade up.To switch off, move blade down." the blade was able to be connected to both lab inventory handles, however there was some difficulty in detaching the blade from the handles.Additionally, the blade was tested with the handles that were reported during the same incidents.Increased resistance was observed between the blade and handles during testing.R & d engineering was consulted as part of this investigation.The ball bearings were revisited under microscopic inspection and it was observed that, along with the significant scratches, there were dents or deformities in the ball bearings.It is possible that the ball bearings became deformed during use which caused the scratching and burrs.This could then lead to increased friction between the blade and handle, resulting in difficulty detaching.The sample has been sent to the manufacturing site for further evaluation.The customer did not provide a lot number; therefore, a device history record review was performed based upon a lot number from the sales history data of the customer.No relevant findings were identified.The complaint is confirmed.Visual inspection revealed significant scratches on the ball bearings of the blade as well as multiple dents or deformities.Functional testing was performed with multiple lab inventory handles as well as the handles that were involved in the reported incidents.During testing, increased resistance was observed when attempting to detach the blade from the handles.R & d engineering was consulted as part of this investigation.It is possible that the ball bearings became deformed during use which caused the scratching and burrs.This could then lead to increased friction between the blade and handle, resulting in difficulty detaching.A dhr review was performed based on the sales history with no relevant findings identified.The sample has been sent to the manufacturing site for further evaluation.Teleflex will continue to monitor and trend on complaints of this nature.

Event Description

Customer reported that: "the blades are getting stuck on the handle".No patient injury or consequence reported.Patient condition reported as "fine".

Manufacturer Narrative

Qn#(b)(4).Further investigation was performed and the device was sent to the manufacturing site.The site has confirmed that the product is defective.The root cause was identified as manufacturing related.A non-conformance has been initiated to further investigate this issue.Teleflex will continue to monitor and trend on complaints of this nature.

• Brand Name: RUSCH EMERALD FO MACINTOSH BLADE
• Type of Device: LARYNGOSCOPE, RIGID
• Manufacturer (Section D): TELEFLEX MEDICAL; morrisville NC
• Manufacturer (Section G): TELEFLEX MEDICAL; 3015 carrington mill blvd; morrisville NC 27560
• Manufacturer Contact: katharine tarpley ; 3015 carrington mill blvd; morrisville, NC 27560 ; 9193614124
• MDR Report Key: 14836602
• MDR Text Key: 302845646
• Report Number: 3011137372-2022-00115
• Device Sequence Number: 1
• Product Code: CCW
• UDI-Device Identifier: 14026704640260
• UDI-Public: 14026704640260
• Combination Product (y/n): N
• Reporter Country Code: US
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: User Facility,Company Representative
• Reporter Occupation: Other
• Type of Report: Initial,Followup,Followup
• Report Date: 06/02/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Model Number: IPN049940
• Device Catalogue Number: 004433300
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: No
• Initial Date Manufacturer Received: 06/02/2022
• Initial Date FDA Received: 06/27/2022
• Supplement Dates Manufacturer Received: 07/22/2022; 07/27/2022
• Supplement Dates FDA Received: 07/25/2022; 07/28/2022
• Was Device Evaluated by Manufacturer?: Yes
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Treatment: HANDLE; HANDLE; HANDLE