MAUDE Adverse Event Report: INTUITIVE SURGICAL, INC ENDOWRIST;DAVINCI SI; FENESTRATED BIPOLAR FORCEPS

Model Number	420205-16
Medical Device Problem Code	Material Split, Cut or Torn (4008)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/28/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The instrument involved in this complaint has not been received and/or tested by failure analysis as of the date of this report.If the product is received and evaluated, a supplemental mdr will be submitted.
Event or Problem Description
It was reported that there was a broken cable with a da vinci product.The customer reported event has no report of patient injury.
Event or Problem Description
Refer to h11 for follow-up information.
Additional Manufacturer Narrative
Intuitive surgical, inc.(isi) received the da vinci product to perform failure analysis.The fenestrated bipolar forceps instrument was analyzed and found to have a derailed pitch cable at the proximal end.Common causes of the failure mode derailed instrument pitch cables are attributed to a component failure.Derailed cables are attributed to a loss of cable tension.A cracked clamping pulley and/or input shaft can cause the cable to become dislodged at the proximal end.When the clamping pulley and/or input shaft is cracked, the cable can dislodge as the input could "slip" with respect to its internal shaft causing the loss of cable tension.A cracked clamping pulley and/or input shaft can be caused by improper cleaning or sterilization techniques used during reprocessing.A dislodged pitch cable at the proximal end can then result in the cable becoming derailed or loose at the distal end, which may lead to non-intuitive motion.

• Brand Name: ENDOWRIST;DAVINCI SI
• Common Device Name: FENESTRATED BIPOLAR FORCEPS
• Manufacturer (Section D): INTUITIVE SURGICAL, INC; 3410 central expressway; santa clara CA 95051
• Manufacturer (Section G): INTUITIVE SURGICAL, INC; 3410 central expressway; santa clara CA 95051
• Manufacturer Contact: izabel nielson ; 3410 central expressway; santa clara, CA 95051 ; 4085232100
• MDR Report Key: 23010807
• Report Number: 2955842-2025-37345
• Device Sequence Number: 15914743
• Product Code: NAY
• UDI-Device Identifier: 00886874111642
• UDI-Public: (01)00886874111642(10)K10240801
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K050369
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Remedial Action: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 01/06/2026

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
• Operator of Device: Health Professional
• Device Model Number: 420205-16
• Device Catalogue Number: 420205
• Device Lot Number: K10240801 332
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 08/21/2025
• Supplement Date Received by Manufacturer: 12/12/2025
• Initial Report FDA Received Date: 09/09/2025
• Supplement Report FDA Received Date: 01/07/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/01/2024
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: N/A
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: DA VINCI INSTRUMENTS AND ACCESSORIES
• Patient Sex: Unknown