Nail-gun or projectile injury at work: NSW workers compensation guide

Nail-gun or projectile injury at work can occur through unintended discharge while carrying, repositioning or contacting material and a fastener passing through or ricocheting from the workpiece. The incident history should identify the task, equipment, location and sequence of events rather than relying on the job title alone.

People commonly exposed include carpenters, framers, roofers and flooring installers and manufacturing and workshop workers using fastening or projectile tools. Employment records should identify each person's task, employer and position in the work area when the incident occurred.

Medical records after a nail-gun or projectile injury at work may identify hand injury and eye injury. Each diagnosis should be linked to the event or exposure and to the worker's actual functional change.

After a nail-gun or projectile injury at work, immediate reporting and safety records may include retain the tool, fastener, workpiece and trigger setting and photograph entry path, material position and line of fire without graphic injury images. These records can establish what was known at the time without requiring the worker to repeatedly recount a traumatic event.

• Inspection, maintenance, training and SafeWork records where applicable.
• If the facts may meet the WHS Act definition of a notifiable incident, the SafeWork notification reference, inspector correspondence and scene records, without delaying emergency assistance or other action permitted by section 39.

For a nail-gun or projectile injury at work, the first evidence to preserve includes manufacturer information and any modification or misfire history and witness positions, CCTV and task instruction. It is most useful when dates, people, equipment, duties and later medical histories tell a consistent account.

• Imaging locating the projectile and operative findings.
• Nerve, tendon, vision, organ and rehabilitation evidence.

Medical and psychological evidence after a nail-gun or projectile injury at work may include first-aid, ambulance and early clinical histories describing the nail-gun or projectile injury at work sequence and diagnosis-specific examination, imaging and specialist evidence for hand injury, eye injury, nerve injury, organ injury. A diagnosis alone may not answer causation or capacity: the records should explain the work event, symptoms, treatment and practical restrictions.

• Certificates of capacity stating functional restrictions, hours and treatment rather than only a diagnosis.
• Operative, rehabilitation and psychological records where the event caused surgery, prolonged recovery or trauma symptoms.

After a nail-gun or projectile injury at work, an insurer may dispute whether discharge, ricochet or material penetration caused the injury and whether retained fragments or later nerve symptoms require treatment. The written decision should be answered with evidence directed to those stated reasons.

Penetrating injuries may need imaging, removal, tendon or nerve repair and infection monitoring. The treatment plan should identify the affected structure rather than rely only on the visible entry wound. If treatment is disputed after a nail-gun or projectile injury at work, the request should explain the accepted diagnosis, expected functional benefit and reasonable alternatives.

Work capacity after a nail-gun or projectile injury at work may turn on tool use, grip, fine hand function, vision, startle response and line-of-fire work and whether non-projectile duties are genuinely available. Proposed duties must be compared with the real task demands and the worker's ability to sustain them for the proposed hours.

WPI depends on stable nerve, tendon, vision, organ, motion or scar consequences; retained material alone may not establish impairment. The accident mechanism, surgery, imaging finding or pain report alone does not establish a WPI percentage. Any WPI assessment after a nail-gun or projectile injury at work occurs after stabilisation under the NSW method for the accepted body system; the accident or surgery alone does not determine a percentage.

Tool or fastener defects and another contractor’s discharge may create separate issues. Any separate occupiers-liability, product, TPD or work injury damages issue is distinct from statutory workers compensation and depends on its own evidence and legal criteria. These issues are separate from workers compensation and depend on the particular facts.

For a nail-gun or projectile injury at work, assistance may involve separate the nail-gun or projectile injury at work mechanism from the diagnoses and identify any missing incident record and compare the insurer’s written reasons with medical, treatment and work-capacity evidence. The purpose is to identify the disputed decision and the evidence needed for the next step, not to promise an outcome.