Boston Scientific Endostat III
Boston Scientific · Model Endostat III
• A self-limiting energy system that is designed to limit the depth of burn penetration. • A variable speed peristaltic pump intended to provide precisely controlled irrigation. • Two bipolar modes: CONTINUOUS or VARIABLE TIME, designed to vary the duration of energy delivery. • The monopolar capabilities of the Endostat III Generator are intended to provide physicians the ability to perform certain therapeutic procedures using standard monopolar devices such as polypectomy snares, sphincterotomes, and hot biopsy forceps. • A choice of four individual RF waveforms: COAG, BLEND, CONTROL CUT, or CUT. • Receptacles that accept widely used monopolar active cords and disposable dispersive electrodes (patient plates, or grounding pads). • The Endostat III Generator also features a new safety standard that utilizes two separate warning systems intended to help identify the cause of a problem and prevent surgical error. • The “Pad Fault” warning system is designed to detect a poor connection between the generator and the pad or between the pad and the patient. In the event of a fault, the RF power is designed to be inhibited until the connection is corrected. • The unit is also designed to monitor the output and the internal power supplies. If the output or internal supplies exceed their specified limits, the unit is designed to go into a “System Fault” condition, which is intended to prohibit any output. Also, the unit is designed with a maximum single power application time limit of 22 seconds, as a safety feature in case of a footswitch activation failure.
Key tips
- ·Never defeat or bypass a return-electrode monitoring (REM) alarm to finish a case - it's a direct burn risk.
- ·Verify OR table battery backup - a table that loses power mid-procedure is a real, documented incident type.
- ·Track surgical light lamp-hours rather than waiting for failure - a sudden failure mid-case is avoidable.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Electrosurgical electrode wear
MediumSymptoms: Poor cut/coag, sparking, low power.
Root cause: Burned/eroded blade or pencil.
Return electrode / pad fault
HighSymptoms: Pad alarm, no activation.
Root cause: Poor contact or expired pad.
Instrument / implant breakage
HighSymptoms: Fractured tip, loose component, debris.
Root cause: Metal fatigue, improper reprocessing, or misuse.
Reprocessing / sterilization failure
MediumSymptoms: Residue, bioburden, discoloration.
Root cause: Inadequate cleaning cycle or damaged tray.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Foot switch assembly
Class Periodic replacementRel. cost $$R&R Fairly easy
OR light LED module
Class Major service partRel. cost $$$R&R Difficult
Table hydraulic actuator
Class Periodic replacementRel. cost $$$R&R Difficult
Instrument repair / replacement set
High-turnover consumable instruments.
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Foot switch assembly | Periodic replacement | $$ | Fairly easy |
| OR light LED module | Major service part | $$$ | Difficult |
| Table hydraulic actuator | Periodic replacement | $$$ | Difficult |
| Instrument repair / replacement set High-turnover consumable instruments. | Periodic replacement | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Pre-case functional check
- ·Electrosurgical return-electrode cable inspection
- ·Table hydraulic / mechanical inspection
- ·Annual electrical safety test and full PM
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Electrosurgical electrode wear
- Confirm the presentation - typically poor cut/coag, sparking, low power - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: burned/eroded blade or pencil.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the electrosurgical pencil & electrode per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Return electrode / pad fault
- Confirm the presentation - typically pad alarm, no activation - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: poor contact or expired pad.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the return electrode (patient plate) per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure rooms
- Interventional suites
Documents & Manuals
Troubleshoot this device with Bio
Describe a symptom or error code. Bio answers from this device's own documented error codes, failure modes, parts, and guides.
Ask Bio →