Ethicon suture 1643G 4-0 Chromic Cut Naturally Brown Suture Box of 12 *EXPIRED*

Ethicon Chromic Gut Sutures | Size 4-0 | 18" Length | PS-4 Needle | 1643G

The Ethicon 1643G is a precision-engineered absorbable suture composed of chromic gut. Sourced from the sub-mucosal fibrous layer of bovine intestine, this naturally brown material is treated with chromic salts to delay absorption and reduce tissue reaction. As a 4-0 suture, it provides a fine, high-tensile strand ideal for delicate tissue approximation where minimal scarring and reliable short-term support are required.

This configuration features the PS-4 (Plastic Surgery) needle, a 16mm Reverse Cutting needle. The "reverse cutting" geometry features a triangular cross-section with the cutting edge on the outer convex curve. This design is specifically engineered to prevent "tissue cutout," making it the clinical standard for suturing tough, linear tissues like skin or fascia in plastic and reconstructive surgery models.

Key Specifications

• Manufacturer: Ethicon (Johnson & Johnson)

• Model / REF: 1643G

• Material: Chromic Gut (Bovine origin)

• Suture Size: 4-0

• Strand Length: 18 Inches (45 cm)

• Needle Name: PS-4 (Plastic Surgery)

• Needle Length: 16 mm

• Needle Shape: 3/8 Circle

• Point Type: Reverse Cutting

• Quantity: Box of 12 Foil Packets

Technical & Research Advantages

• Optimized Reverse Cutting Geometry: The PS-4 needle's cutting edge is positioned away from the wound edge, which significantly reduces the risk of the suture tearing through the tissue during tension. This is essential for high-fidelity skin closure simulations.

• Controlled Absorption Profile: Chromic gut maintains its functional tensile strength for approximately 14 to 21 days. In a research or lab setting, this allows for the study of wound healing dynamics and material degradation in soft tissue models.

• Excellent Knot Security: The natural collagen fibers of gut suture provide a high coefficient of friction, ensuring that knots remain secure and "locked" even in the presence of surgical fluids or tissue tension.

• Fine-Gauge Precision: The 4-0 diameter allows for detailed work in microsurgical training, such as tendon repair simulations or delicate mucosal closures.

• 3/8 Circle Maneuverability: The PS-4 needle shape is ideal for superficial closures, allowing the clinician to perform quick, shallow passes with a simple wrist rotation.

Applications (Non-Clinical)

• Surgical Education: Teaching advanced subcuticular suturing, interrupted skin closures, and reverse-cutting needle techniques.

• Veterinary Research: Use in non-clinical anatomical studies, veterinary surgical skills labs, and superficial wound closure modeling.

• Biomechanical Testing: Testing the puncture resistance of synthetic skin substitutes or the pull-out strength of various suture patterns.

• Product Development: Benchmarking the performance of new synthetic absorbable materials against the natural collagen standard.

Condition & Disclaimer

• Status: NEW — Original Packaging. The individual foil packets remain hermetically sealed and untampered with.

• Important Usage Note: These items are Expired (Lot expiration: 09-30-2024 or similar).

• Restricted Use: This product is sold strictly for Research, Testing, and Instructional use. It is NOT intended for human or veterinary clinical use. The tensile strength and sterility of the material for clinical implantation cannot be guaranteed due to its expired status.

• Professional Standards: With over 25 years of experience in surgical supplies, Primis Medical ensures that all research-grade inventory is stored in climate-controlled environments to maintain its physical integrity for testing.

Shipping & Handling

• Secure Logistics: Shipped in original, reinforced Ethicon boxes to ensure the 16mm PS-4 needles and internal foil packets remain protected during transit.

• Fast Dispatch: Ships within 1 business day.