da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: AS PART OF A LEGAL DISPUTE, INTUITIVE SURGICAL, INC. (ISI) RECEIVED INFORMATION REGARDING A PATIENT WHO UNDERWENT A DA VINCI-ASSISTED ¿ADHESIOLYSIS AND REDUCTION OF A SLIPPED NISSEN WITH COMPLETION LAPAROTOMY, REPAIR OF HIATAL HERNIA AND REDO OF NISSEN FUNDOPLICATION¿ PROCEDURE ON (B)(6) 2017. THE PLAINTIFFS¿ ATTORNEY ALLEGES THAT THE PATIENT ¿EXPERIENCED COMPLICATIONS DURING THE SURGERY, NAMELY ISSUES WITH THE PATIENT¿S BLOOD PRESSURE AND OXYGENATION WHEN HE INCREASED THE PRESSURE OF THE GAS INSUFFLATING THE PATIENT¿S ABDOMINAL WALL.¿ THE PLAINTIFFS¿ ATTORNEY NOTED THAT WHEN THE PRESSURE WAS DECREASED, THE SURGEON¿S ¿VISIBILITY ALSO DECREASED, LEADING HIM TO UNDOCK THE ROBOT AND CONVERT THE OPERATION TO AN OPEN SURGERY.¿ AT AN UNSPECIFIED TIME DURING THE SURGICAL PROCEDURE, THE PATIENT ALLEGEDLY SUSTAINED AN ¿ESOPHAGEAL PERFORATION RESULTING IN THE LEAKAGE OF STOMACH CONTENTS INTO HER MEDIASTINUM.¿ AS A RESULT, THE PATIENT EXPERIENCED ¿IMMEDIATE RESPIRATORY COMPLICATIONS INCLUDING ATELECTASIS, PLEURAL FLUID AND PNEUMONIA, AND EVENTUALLY TO SEPSIS.¿ THE PATIENT ALLEGEDLY EXPERIENCED ¿PAIN AND SUFFERING¿ FROM (B)(6) 2017. DURING THIS TIME, THE PATIENT REPORTEDLY HAD ¿THE INABILITY T

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT AFTER UNDERGOING A DA VINCI-ASSISTED PROSTATECTOMY PROCEDURE, THE PATIENT EXPIRED ON AN UNSPECIFIED DATE. ACCORDING TO THE INITIAL REPORTER, THE SURGICAL PROCEDURE WAS LONG AND THERE WERE UNSPECIFIED COMPLICATIONS. THERE WERE NO REPORTED SYSTEM FAILURE ISSUES. ON 07/24/2017, INTUITIVE SURGICAL, INC. (ISI) CONTACTED THE INITIAL REPORTER, AN ISI CLINICAL SALES REPRESENTATIVE (CSR), AND OBTAINED THE FOLLOWING INFORMATION REGARDING THE REPORTED EVENT: THE CSR WAS NOT PRESENT DURING THE SURGICAL PROCEDURE WHICH WAS NOT RECORDED ON VIDEO. TO HER KNOWLEDGE, THE DA VINCI SURGICAL SYSTEM WAS IN THE OPERATING ROOM (OR) FOR APPROXIMATELY 13 HOURS. TO HER UNDERSTANDING, THE DA VINCI SURGICAL SYSTEM WAS USED FOR THE ENTIRE DURATION OF THE SURGICAL PROCEDURE AND THERE WERE NO REPORTS THAT A MALFUNCTION OF A DA VINCI SYSTEM, INSTRUMENT, OR ACCESSORY OCCURRED. THE CSR STATED THAT THE PATIENT REPORTEDLY HAD A TON OF ADHESIONS WHICH TOOK A WHILE TO CLEAR IN ORDER FOR THE SURGEON TO GAIN ACCESS TO THE PROSTATE. THE SURGICAL PROCEDURE WAS COMPLETED. HOWEVER, POST-OPERATIVELY THE PATIENT COMPLAINED OF SEVERE ABDOMINAL PAIN AND UNDERWENT SOME TYPE OF UNSPECIFIED SCAN. THE CSR WAS UN

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A DA VINCI-ASSISTED NISSEN FUNDOPLICATION PROCEDURE, THE INSUFFLATION WAS LOST AFTER THE SURGEON SWAPPED FROM ARM 1 TO ARM 3. AT THE TIME THE EVENT OCCURRED, A HARMONIC ACE CURVED SHEARS INSTRUMENT WAS INSTALLED ON ARM 1 AND A DOUBLE FENESTRATED GRASPER INSTRUMENT WAS INSTALLED ON ARM 3. AS A RESULT OF THE LOSS OF INSUFFLATION, THE PATIENT'S DIAPHRAGM SLID DOWN AND THE HARMONIC ACE CURVED SHEARS INSTRUMENT ALLEGEDLY PUNCTURED A HOLE IN THE PATIENT'S RIGHT VENTRICLE. ONCE THE SURGEON IDENTIFIED THE OPERATIVE COMPLICATION, A CARDIO SURGEON WAS CALLED FOR IMMEDIATE OPEN HEART SURGERY. ON 06/21/2017, INTUITIVE SURGICAL, INC. (ISI) CONTACTED THE SURGEON AND OBTAINED THE FOLLOWING INFORMATION REGARDING THE REPORTED EVENT: THE SITE HAS NOT DETERMINED THE CAUSE OF THE LOSS OF INSUFFLATION DURING THE SURGICAL PROCEDURE. NO ISSUES WERE IDENTIFIED WITH THE INSUFFLATION TUBING, ASSIST PORT, CANNULAS, OR CANNULA SEALS. THE SURGEON BELIEVES THE PUNCTURE WOUND TO THE PATIENT'S RIGHT VENTRICLE OCCURRED AS A RESULT OF THE LOSS OF INSUFFLATION AND MOVEMENT OF DIAPHRAGM. NO INSTRUMENTS WERE MOVED AFTER INSUFFLATION WAS LOST. AT THE TIME THE EVENT OCCURRED, THE SURGEON WAS

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED, DURING AN ANONYMOUS CONSUMER SURVEY, THAT THE PATIENT'S COLON WAS ALLEGEDLY NICKED BY AN UNSPECIFIED DEVICE WHILE UNDERGOING A DA VINCI-ASSISTED SURGICAL PROCEDURE. AS A RESULT, THE INITIAL REPORTER (THE PATIENT'S FRIEND) CLAIMED THAT THE PATIENT DEVELOPED AN UNSPECIFIED INFECTION AND WAS ADMITTED TO THE ICU FOR ABOUT 2 WEEKS BEFORE HE WAS RELEASED TO GO HOME. THE FOLLOWING NIGHT AFTER BEING DISCHARGED FROM THE HOSPITAL, THE PATIENT WAS READMITTED TO THE HOSPITAL FOR PAIN AND SUBSEQUENTLY EXPIRED.

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT AFTER UNDERGOING A DA VINCI-ASSISTED SLEEVE GASTRECTOMY WITH HIATAL HERNIA REPAIR PROCEDURE, THE PATIENT EXPERIENCED BLOOD LOSS ON AN UNSPECIFIED DATE. IN ADDITION, APPROXIMATELY 2 WEEKS POST-OPERATIVELY, THE PATIENT WAS READMITTED TO THE OR AND HAD PART OF HER STOMACH AND BOWEL REMOVED FOR AN UNKNOWN REASON. THE INITIAL REPORTER WAS UNSURE IF THE DA VINCI-ASSISTED SURGICAL PROCEDURE WAS PERFORMED ON (B)(6) 2017. ON 06/07/2017, INTUITIVE SURGICAL, INC. (ISI) RECEIVED THE FOLLOWING ADDITIONAL INFORMATION REGARDING THE REPORTED EVENT: AN ISI CLINICAL SALES REPRESENTATIVE (CSR) SPOKE TO THE SITE'S OR DIRECTOR. SHE WAS UNABLE TO CONFIRM IF THE DV PROCEDURE WAS PERFORMED ON (B)(6) 2017. ACCORDING TO THE OR DIRECTOR, THERE WERE NO INTRA-OPERATIVE COMPLICATIONS. THERE WERE ALSO NO REPORTS OF ANY MALFUNCTION OF A DA VINCI SYSTEM, INSTRUMENT, OR ACCESSORY. THE DA VINCI-ASSISTED SURGICAL PROCEDURE WENT SMOOTHLY AND WAS COMPLETED ROBOTICALLY. DUE TO UNSPECIFIED POST-OPERATIVE COMPLICATIONS AND POST-OPERATIVE BLEEDING FROM AN UNKNOWN SOURCE, THE PATIENT WAS TRANSFERRED TO ANOTHER FACILITY. THE CSR DID NOT KNOW WHY PARTS OF THE PATIENT'S STOMACH AND BOWEL WERE REMOVED. THE

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS INITIALLY REPORTED THAT AFTER COMPLETION OF A DA VINCI-ASSISTED GASTRIC BYPASS PROCEDURE, THE PATIENT RETURNED TO THE EMERGENCY DEPARTMENT AND UNDERWENT AN UNSPECIFIED SURGICAL PROCEDURE. THE INITIAL REPORTER DID NOT KNOW IF THE SECONDARY OPERATION WAS RELATED TO THE DA VINCI-ASSISTED SURGICAL PROCEDURE. ON 05/09/2017, INTUITIVE SURGICAL, INC. (ISI) CONTACTED THE ISI CLINICAL SALES REPRESENTATIVE (CSR) WHO WAS PRESENT DURING THE DA VINCI-ASSISTED SURGICAL PROCEDURE AND OBTAINED THE FOLLOWING ADDITIONAL INFORMATION ABOUT THE COMPLAINT: THE CSR WAS PRESENT DURING THE ENTIRE DA VINCI-ASSISTED SURGICAL PROCEDURE WHICH WAS NOT RECORDED ON VIDEO. A PROCTOR WAS PRESENT DURING THE PROCEDURE. THE SURGICAL PROCEDURE WAS COMPLETED SUCCESSFULLY WITH NO INTRA-OPERATIVE COMPLICATIONS. IN ADDITION, THERE WERE NO REPORTED ISSUES WITH THE DA VINCI SURGICAL SYSTEM DURING THE SURGICAL PROCEDURE. ACCORDING TO THE CSR, THE SURGEON INFORMED HIM THAT THE GJ AND JJ TUBES LOOKED GOOD. HOWEVER, THE SURGEON REPORTEDLY VOICED CONCERNS REGARDING THE POUCH THAT HE HAD MADE. THE CSR REITERATED THAT THERE WAS NO ALLEGATION FROM THE SURGEON OR SURGICAL STAFF THAT A MALFUNCTION OF A DA VINCI SYSTEM, INSTRUME

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A DA VINCI-ASSISTED MITRAL VALVE REPAIR PROCEDURE, PERFORMED ON (B)(6) 2017, THE PATIENT EXPERIENCED INTRA-OPERATIVE COMPLICATIONS. AFTER AN INITIAL ECHOGRAPHIC CONTROL WAS PERFORMED INTRA-OPERATIVELY, UNSPECIFIED LEAKAGES WERE OBSERVED. AS A RESULT, THE SURGICAL STAFF RE-OPENED AND RE-SUTURED AROUND THE VALVE. AFTER A SECOND ECHOGRAPHIC CONTROL WAS PERFORMED INTRA-OPERATIVELY, LEAKAGES WERE STILL OBSERVED. AS A RESULT, THE SURGICAL STAFF DECIDED TO CHANGE A VALVE FOR A NEW ONE. AFTER A THIRD ECHOGRAPHIC CONTROL WAS PERFORMED INTRA-OPERATIVELY, LEAKAGES WERE STILL FOUND AND THE DECISION WAS MADE TO CONVERT THE DA VINCI-ASSISTED SURGICAL PROCEDURE TO A STERNOTOMY PROCEDURE. AFTER THE SURGICAL PROCEDURE WAS CONVERTED TO OPEN SURGERY, THE INITIAL REPORTER LEFT THE OR ROOM. AT THIS TIME, THE ROOT CAUSES OF THE INTRA-OPERATIVE COMPLICATIONS ARE UNKNOWN. THERE WAS NO ALLEGATION DURING THE SURGICAL PROCEDURE THAT A MALFUNCTION OF THE DA VINCI SYSTEM, INSTRUMENTS, OR ACCESSORIES HAD OCCURRED. APPROXIMATELY NINE HOURS AFTER THE CASE WAS CONVERTED TO OPEN SURGERY, THE PATIENT WAS TRANSFERRED TO ANOTHER FACILITY FOR AN UNSPECIFIED REASON. AT THIS FACILITY, THE PATI

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A DA VINCI-ASSISTED INGUINAL HERNIA REPAIR PROCEDURE, THE PATIENT'S INTESTINES WERE ALLEGEDLY NICKED AND THE PATIENT PASSED AWAY WITHIN 48 HOURS FROM SEPTIC POISONING. ON (B)(6)2017, INTUITIVE SURGICAL, INC. (ISI) CONTACTED THE ISI CLINICAL SALES REPRESENTATIVE (CSR) AND OBTAINED THE FOLLOWING INFORMATION REGARDING THE REPORTED EVENT: THE CSR WAS PRESENT DURING THE SURGICAL PROCEDURE WHICH WAS NOT RECORDED ON VIDEO. THE DA VINCI-ASSISTED INGUINAL HERNIA REPAIR PROCEDURE WAS COMPLETED WITH NO REPORTS OF ANY INTRA-OPERATIVE COMPLICATIONS. DURING THE SURGICAL PROCEDURE, NO MALFUNCTION OF A DA VINCI SYSTEM, INSTRUMENT, OR ACCESSORY WAS REPORTED. TO HIS RECOLLECTION, THE CSR INDICATED THAT THE PATIENT WAS DISCHARGED FROM THE HOSPITAL THE SAME DAY THE SURGICAL PROCEDURE WAS PERFORMED. ON AN UNSPECIFIED DATE POST-OPERATIVELY, THE PATIENT CAME BACK TO THE HOSPITAL FOR AN UNKNOWN REASON. THE CSR SPOKE TO THE SURGEON ABOUT THE REPORTED EVENT. ACCORDING TO THE CSR, THE SURGEON INFORMED HIM THAT THE PATIENT SUPPOSEDLY SUSTAINED A BOWEL INJURY AND THEN PASSED AWAY. THE SURGEON DID NOT INITIALLY ALLEGE THAT A MALFUNCTION OF THE DA VINCI SURGICAL SYSTEM OCCURRED DURING

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: AS PART OF A LEGAL DISPUTE, INTUITIVE SURGICAL, INC. (ISI) RECEIVED INFORMATION REGARDING A PATIENT WHO UNDERWENT A DA VINCI-ASSISTED TOTAL HYSTERECTOMY PROCEDURE ON (B)(6) 2017. THE PLAINTIFF'S ATTORNEY ALLEGES THAT THE PATIENT EXPIRED AS A RESULT OF UNDERGOING THE DA VINCI-ASSISTED SURGICAL PROCEDURE. NO FURTHER CLINICAL INFORMATION WAS PROVIDED. ISI WAS NOT PROVIDED WITH THE OPERATIVE REPORT OR ANY OF THE PATIENT'S MEDICAL RECORDS.

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS INITIALLY REPORTED THAT DURING A DA VINCI-ASSISTED PULMONARY LOBECTOMY PROCEDURE, THE PATIENT EXPERIENCED BLEEDING AND SUBSEQUENTLY EXPIRED. THERE WERE NO REPORTS OF ANY ISSUES WITH THE DA VINCI SURGICAL SYSTEM DURING THE SURGICAL PROCEDURE. ON 03/24/2017, INTUITIVE SURGICAL, INC. (ISI) CONTACTED THE ISI CLINICAL SALES REPRESENTATIVE (CSR) AND OBTAINED THE FOLLOWING INFORMATION REGARDING THE REPORTED EVENT: THE CSR WAS PRESENT DURING THE DA VINCI-ASSISTED SURGICAL PROCEDURE WHICH WAS NOT RECORDED ON VIDEO. DURING THE SURGICAL PROCEDURE, THE PATIENT EXPERIENCED BLEEDING FROM AN UNSPECIFIED VESSEL. AS A RESULT OF THE BLEEDING, THE SURGEON MADE THE DECISION TO CONVERT TO OPEN SURGERY. AT THAT TIME THE CSR REPORTEDLY LEFT THE OR. AFTER THE EVENT OCCURRED, THE CSR SPOKE TO THE SURGEON. ACCORDING TO THE CSR, THERE WAS NO ALLEGATION FROM THE SURGEON THAT A MALFUNCTION OF A DA VINCI SYSTEM, INSTRUMENT, OR ACCESSORY OCCURRED DURING THE SURGICAL PROCEDURE OR CAUSED/CONTRIBUTED TO THE PATIENT'S INTRA-OPERATIVE BLEEDING AND SUBSEQUENT DEATH. THE PATIENT REPORTEDLY EXPIRED ON THE OR TABLE.

da Vinci Surgical System — Death report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT FIVE DAYS AFTER COMPLETION OF AN UNSPECIFIED DA VINCI-ASSISTED SURGICAL PROCEDURE PERFORMED IN (B)(6) 2016, THE PATIENT EXPERIENCED POST-OPERATIVE HEMORRHAGING IN HER ROOM. THE CAUSE AND SOURCE OF THE HEMORRHAGING IS CURRENTLY UNKNOWN. CARDIAC MASSAGES WERE ADMINISTERED TO THE PATIENT A LITTLE OVER FOUR HOURS IN HER ROOM. ONCE THE PATIENT WAS STABLE, THE PATIENT WAS TAKEN TO THE OR. HOWEVER, THE SURGICAL STAFF WAS UNABLE TO SAVE THE PATIENT. THE PATIENT REPORTEDLY EXPIRED FIVE DAYS AFTER UNDERGOING THE DA VINCI-ASSISTED SURGICAL PROCEDURE. NO FURTHER CLINICAL INFORMATION WAS PROVIDED. THE FOLLOWING INFORMATION IS UNKNOWN: THE ACTUAL DATE THAT THE DA VINCI-ASSISTED SURGICAL PROCEDURE WAS PERFORMED, WHAT SPECIFIC TYPE OF SURGICAL PROCEDURE WAS PERFORMED, WHAT DATE THE HEMORRHAGE WAS IDENTIFIED, AND WHAT DATE THE PATIENT EXPIRED.