Mizuho OSI ProAxis 6988
Mizuho OSI · Model ProAxis 6988
Prone, supine and lateral patient positioning allowing for flexion and extension Radiolucent hinge allows for unrestricted O-arm® and C-arm access Direct visualization of intra-operative changes in spinal alignment Total spine access: cervical, thoracic and lumbar Torso Trolley® integrates patient movement with hinge movement maintaining neutral upper body position with coordinated patient translation Adjustable Chest Slide for optimum patient positioning The IntelliPENDANT®, a software-driven hand pendant, controls all table functions: Floor Locks, Height, Lateral Roll, Trendelenburg/reverse Trendelenburg and Return to Level Removable two-piece carbon fiber supine tops with pad and built-in translation slide convert open frame to a platform for supine and lateral positioning Cervical Mounting Device permits cranial stabilization option ProneView® Protective Helmet System offers head and eye protection for the prone patient Tempur-Pedic® Medical Pad technology incorporated into all patient surfaces. Auxiliary Panel provides a secondary source for controlling table motion Powered Floor Locks.
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
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
A powered function will not run
HighSymptoms: Height, tilt, Trendelenburg, back or leg section does not respond to the hand control / pendant.
Root cause: Hand control fault, an electro-hydraulic actuator, a control-board fault, or a low battery (mobile column).
Section drifts or will not hold
MediumSymptoms: Table settles under load after positioning.
Root cause: Hydraulic valve internal leak or an actuator backdrive.
Battery will not hold charge (mobile column)
MediumSymptoms: Short run time, table dies mid-procedure, battery alarm.
Root cause: Aged battery pack or a charger fault.
Hand control / pendant / cable fault
MediumSymptoms: Intermittent or dead hand control.
Root cause: Worn hand control or a damaged cable.
Table-top segment / rail / pad fault
LowSymptoms: Segments loose, accessory rails will not clamp, pads torn, radiolucent top damaged.
Root cause: Worn segment latches, rail clamps, or upholstery.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Electro-hydraulic actuator
Class Major service partRel. cost $$$R&R Difficult
Hydraulic control valve block
Class Major service partRel. cost $$$R&R Difficult
Battery pack (mobile column)
Class Periodic replacementRel. cost $$R&R Fairly easy
Hand control / pendant
Class Periodic replacementRel. cost $$R&R Fairly easy
Table-top segment pads / rail clamps
Class Major service partRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Electro-hydraulic actuator | Major service part | $$$ | Difficult |
| Hydraulic control valve block | Major service part | $$$ | Difficult |
| Battery pack (mobile column) | Periodic replacement | $$ | Fairly easy |
| Hand control / pendant | Periodic replacement | $$ | Fairly easy |
| Table-top segment pads / rail clamps | Major service part | $$ | 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
Error Codes
Extracted directly from this unit's own service manual.
00None – general
10Main Controller
21Motor Controller, Head Shoulder
22Motor Controller, Head Elbow
23Motor Controller, Head Wrist
24Motor Controller, Foot Shoulder
25Motor Controller, Foot Elbow
26Motor Controller, Foot Wrist
27Motor Controller, Tilt
30Chest Tray
41Floor Lock, Head-End
42Floor Lock, Foot-End
50Hand Pendant
60Auxiliary Control Panel
70Pump Controller
C0Board reset (Power on) Board was powered on. Acknowledge error.
C1Brown out reset Board temporarily lost power. Acknowledge error.
C2Watchdog reset Internal software error. Acknowledge error.
C3Software reset Internal software error. Acknowledge error.
C4External reset Internal software error. Acknowledge error.
C5Illegal opcode reset Internal software error. Acknowledge error.
C6Trap conflict reset Internal software error. Acknowledge error.
C7Unknown reset Internal software error. Acknowledge error.
C8Stack overflow reset Internal software error. Acknowledge error.
C9Stack underflow reset Internal software error. Acknowledge error.
D0The logic voltage into the board is low. Acknowledge error.
Contact Mizuho OSI Services.
D2The drive voltage into the board is low. Acknowledge error.
Contact Mizuho OSI Services.
E0Invalid state transition Internal software error. Acknowledge error.
28The table moved past the allowed minimum height of the Foot-End wrist. Acknowledge error.
Contact Mizuho OSI Services.
29The table moved past the allowed minimum height of the hinge. Acknowledge error.
Contact Mizuho OSI Services.
2AThe table moved past the allowed maximum hinge angle. Acknowledge error.
Contact Mizuho OSI Services.
2BThe table moved past the allowed minimum hinge angle. Acknowledge error.
Contact Mizuho OSI Services.
2CThe table moved past the allowed maximum tilt angle. Acknowledge error.
Use tilt to move table back into allowed angle.
2DThe table moved past the allowed minimum tilt angle. Acknowledge error.
Use tilt to move table back into allowed angle.
2EThe user requested motion but one of the boards was not ready for motion for a period that exceeded the timeout.
Turn table power off and back on.
43One or both floor lock boards are not communicating with the main controller.
Turn table power off and back on. Contact Mizuho OSI Services.
44The ACP board is not communicating with the main controller.
Turn table power off and back on. Contact Mizuho OSI Services.
45The main controller failed to properly initialize.
Turn table power off and back on.
46The main controller failed to properly initialize.
Turn table power off and back on.
47The main controller failed to properly initialize.
Turn table power off and back on.
48The main controller failed to properly initialize.
Turn table power off and back on.
61The software programmed into the chest tray board is incompatible with the main controller software.
Contact Mizuho OSI Services.
62The software programmed into one or both floor lock boards is incompatible with the main controller software.
Contact Mizuho OSI Services.
63The software programmed into the ACP board is incompatible with the main controller software.
Contact Mizuho OSI Services.
64The software programmed into the hand pendant is incompatible with the main controller software.
Contact Mizuho OSI Services to replace the hand pendant.
65The software programmed into the auxiliary control panel board is incompatible with the main controller software.
Contact Mizuho OSI Services.
71Multiple keys were depressed for longer than a specific period. Acknowledge error.
Acknowledge error.
72A single key was still depressed for longer than a specific period after a multiple key press. If problem persists, call for service.
Acknowledge error.
A0The small coin-cell battery on the main controller board is not working. Acknowledge error.
Contact Mizuho OSI Services to replace
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: A powered movement will not run (height / tilt / Trendelenburg / back / leg)
- Confirm the table is on mains or the mobile-column battery is charged, and no lock-out is set.
- Operate the function and listen for the electro-hydraulic pump / actuator.
- Substitute a known-good hand control / pendant.
- Check the control cable and connectors for damage.
- Replace the actuator, the hydraulic valve or the control board as isolated, then load-test.
Symptom: A section drifts down / will not hold position under load
- Note how fast it settles and under what load.
- Check the hydraulic control valve for internal leak-by and the actuator for backdrive.
- Bleed and top up the hydraulic system per the manual.
- Rebuild or replace the leaking valve / actuator.
- Confirm the section holds at several positions under the rated load.
Symptom: Battery will not hold charge (mobile column)
- Charge fully and check the charger.
- Run a battery test if supported.
- Replace the battery pack.
- Confirm a full set of movements on battery after replacement.
- Inspect the charge socket and cable.
Symptom: Hand control / pendant intermittent or dead
- Flex the cable along its length and at both ends while operating.
- Inspect the connector for bent pins or moisture.
- Substitute a known-good pendant.
- Replace the pendant or its cable.
- Confirm every function from the replacement.
Technical Specs
- Patient Weight Capacity
- 500 lbs
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
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