Tarnier Cranioclast 46cm

Clinical Application

This instrument is used in obstetric destructive procedures to grasp, collapse and extract the fetal skull when vaginal delivery of a nonviable fetus is required and less invasive options are not feasible. It is indicated only for trained obstetricians in controlled clinical settings and is typically employed in cases of obstructed labor where craniotomy is the accepted clinical approach.

Design & Configuration

The long 46 cm shaft provides reach and mechanical advantage for access deep in the birth canal while maintaining control at the handles. The Tarnier pattern features broad, cupped/fenestrated jaws that distribute compressive force to achieve effective cranial collapse while minimizing slippage. A ratchet locking mechanism on the handles enables the surgeon to maintain sustained closure during extraction maneuvers. The overall geometry is optimized to combine crushing action with secure purchase for controlled removal.

Instrument Specifications

• Instrument type: Cranioclast (destructive obstetric instrument)
• Pattern / model: Tarnier cranioclast
• Configuration: Long-shaft forceps with ratchet lock
• Length: 46 cm
• Tip / jaw pattern: Fenestrated/cupped crushing jaws
• Typical use: Fetal craniotomy during obstructed labor with nonviable fetus
• Material: Surgical-grade stainless steel
• Reusable: Yes

Material & Construction

Constructed from surgical-grade stainless steel to withstand repeated cleaning and sterilization cycles. Jaws and hinge are machined for durable contact surfaces and reliable mechanical performance. Designed for reprocessing in standard high-level disinfection and steam sterilization workflows.

Quality & Compliance

Manufactured by FDA-registered OEM facilities and produced under strict quality control standards.

Brand Comparison

Comparable in form and function to equivalent instruments offered by major US medical suppliers.

Availability & Returns

• In-stock lead time: ships within ~1 week
• Out-of-stock lead time: 2–4 weeks
• Returns: 30-day return policy