Comptoir Hospitalier Orthopédique et Chirurgical

4C® screw

Product description

4C® is a self-drilling cannulated conical controlled compression screw

4C® screws are used in hand surgery, in particular on the scaphoid and any osteosynthesis requiring compression.

The screw is perforated, for insertion of a 10/10 pin, and the distal section is self-drilling and self-tapping in order to avoid use of a shell drill, which is always difficult to clean.

The 4C® screw comes sterilized in a double blister pack with five traceability stickers and a pin.

Its use requires the same ancillary equipment as for PPDA screws.

Dimensional characteristics

38.68.02 4C 15mm screw (median zone: 3mm)

38.68.02 4C 17.5mm screw (median zone: 5.5mm)

38.68.02 4C 20mm screw (median zone: 8mm)

38.68.02 4C 22.5mm screw (median zone: 10.5mm)

38.68.02 4C 25mm screw (median zone: 13mm)

38.68.02 4C 27.5mm screw (median zone: 15.5mm)

38.68.02 4C 30mm screw (median zone: 18mm)

Operating technique
After inserting the 70 mm long pin using an image intensifier, to check the straightness, determine the length of screw to be used with the graduated measuring strip.

Position the screw on the pin, and screw it in using the motor unit set at a speed of 100 rpm.

In certain cases, it may be better drill a pilot hole using a shell drill.

To ensure traceability, the screws are individually packaged in double blister packs. The first contains the screw and a sterilisation indicator label. The second blister contains the first blister and five traceability stickers with the product reference, description and batch number.

The packed screws are then sent to Synergy Health France (MIN des Arnavaux- 13014 MARSEILLE) for sterilisation by gamma radiation according to the  ISO 11137-02, ISO 11737-1, ISO 11737-2, EN 552, EN 556 standards and dose mapping. After sterilisation, SYNERGY HEALTH returns the batch of sterilised screws with a certificate of sterilisation by gamma radiation. 

The screws in the packaging are then labelled. The label includes the description, the reference, the production batch number, the method of sterilisation, the expiry date, the "single use" and "read instructions before use" symbols, the manufacturer's name and address and the CE 1014 markings. 

The screws are packed in boxes identically labelled as above, stretch-wrapped and stored in closed cupboards, away from direct light and humidity.

Storage conditions: no special conditions.