Holder, Head, Neurosurgical (Skull Clamp)（HBL）

Torque screw may crack or separate. If used, an affected screw could lead to inadequate head stabilization, compromised surgical precision, procedural delays, requirement for alternate head fixation methods, and risk of patient injury.

Potential of compromised compatibility resulting in influence on the positioning of the reference array and an influence of the function of the navigation system cannot be excluded.

Reports have been received that after normal or routine lateral forces are applied to the head fixation device, the split block clamp may deflect (rotationally around the axis) and not return to within acceptable distance from its prior position after the force is removed. In order to reduce deflection at the table mount location, users have tightened the hand knob screw to a degree that it is then difficult to untighten it later in the clinical workflow. Rotational movement at the table attachment point could result in HFD movement going unnoticed, which could result in a situation where surgical or medical intervention is necessary, a situation where navigation needs to be reestablished, or a situation resulting in extended time under anesthesia for the patient. It may also be difficult to loosen the mount clamp component after use, potentially leading to ergonomic injury or a workaround during equipment teardown.

Revised Instruction Manual to reflect the most accurate illustration for Mayfield Skull Clamp A2000 Position Diagram

Breaking of the HFD200 Drive Knob force indicator due to over-torqueing of the drive knob beyond the maximum allowable pinning force specification may result in the clinical staff unknowingly pinning the patient's skull with insufficient force; the clinical staff unknowingly pinning the patient's skull with excessive force; or the clinical staff identifying the issue and not being able to continue with the procedure.

The combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.

The combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.

The combination of two different design revisions of DORO LUCENT Base Unit, Locking Transitional Member, and Transitional Member within one set up might lead to a malfunction and failure of the headrest system.

The firm received reports of two breakages of the pin tips which occurred during two identical surgery procedures. The breakage occurred at the very distal end of the conical part of the skull pin tip.

incorrect thread on thumbscrews

EXP did not register as a medical device establishment, list the devices being recalled, or establish its own quality system and instead relied on the fact that its vendors were registered and had their own quality systems.

An investigation of an adverse trend of complaints for the Skull Clamp index locking knob not easily unlocking or disengaging and malfunctions of the 80 lbs. torque knob was initiated. None of the complaints resulted in a report of patient injury, adverse health consequence, or a delay / prolongation of the surgical procedure.

An investigation of an adverse trend of complaints conducted by Integra LifeSciences identified various product performance issues which could impact the functionality of the firm's Mayfield Composite Series Base Units and Mayfield Skull Clamps. In order to prevent additional complaint reports, the firm decided to recall and replace certain lot codes of the Base Units and Skull Clamps that were d