MAYFIELD® Modified Tri-Star Swivel Adaptor is
designed for use during Image Guided Surgery
(IGS) procedures where minimal movement is
paramount

Integra MAYFIELD® Modified Tri-Star Swivel Adaptor
  • The Modified Tri-Star Swivel Adaptor attaches as any standard adaptor. Movement between the ratchet arm and the body of the skull clamp is minimized.
  • The Modified Tri-Star Swivel Adaptor has all of the same benefits as the Tri-Star Swivel Adaptor A-2008 and can accommodate various styles of MAYFIELD® skull clamps.

Part Number: A-1116

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Failure to read and follow instructions furnished in this product insert may result in serious injury to the patient. The Modified Tri-Star Swivel Adaptor may be in compatible with earlier models of skull clamps made with a two piece base design. If the swivel adaptor knob becomes tight before the starburst is properly meshed, the knob is incorrectly adjusted for this skull clamp. Use a 5/64” hex wrench to turn the adjustment screw counter-clockwise four full turns to reset the screw. If the starburst fails to mesh correctly after the screw is reset, the Tri-Star Modified Swivel Adaptor may be incompatible with this particular clamp. The adapter is optimized for use on that skull clamp to which it is adjusted. A single setting may be effective on several skull clamps but it may also be over-adjusted for some other clamps. During the preoperative equipment check, verify that the starburst teeth fully engage on the skull clamp that will be used. It is important for patient safety to perform this inspection before the equipment is used for patient support. If the swivel adapter knob becomes tight before the starburst is properly meshed, the knob is incorrectly adjusted for this skull clamp. Use a 5/64” hex wrench to turn the adjustment screw counter-clockwise four full turns to reset the screw. If the starburst fails to mesh correctly after the screw is reset, the Tri-Star Modified Swivel Adaptor may be incompatible with this particular clamp. With the adapter securely applied to the skull clamp, use a 5/64” hex wrench to turn the adjustment screw clockwise until it is tight. Check the ratchet extension for movement. A single setting may be effective on several skull clamps but it may also be over-adjusted for some other clamps. During preoperative equipment check, verify that the starburst teeth fully engage on the skull clamp that will be used. It is important for patient safety to perform this inspection before the equipment is used for patient support.

Always confirm the starburst teeth mesh properly. Failure to do so may result in damage to the device. Stabilize the patients head or the headrest equipment until all connections are secured against movement. Dual starburst bar should not rotate once locked. If any movement occurs, send to an authorized Integra Repair facility for service. Do not steam sterilize. Plastic components may be damaged by heat.