CARE IMPLANTS & INSTRUMENTS
Description
| Ref. No. Ti | Ref. No. SS | Length | Ref. No. Ti | Ref. No. SS | Length |
| 605.22ST-Ti
605.24ST-Ti 605.26ST-Ti 605.28ST-Ti 605.30ST-Ti 605.32ST-Ti 605.34ST-Ti 605.36ST-Ti 605.38ST-Ti 605.40ST-Ti 605.42ST-Ti 605.44ST-Ti 605.46ST-Ti |
605.22ST
605.24ST 605.26ST 605.28ST 605.30ST 605.32ST 605.34ST 605.36ST 605.38ST 605.40ST 605.42ST 605.44ST 605.46ST |
22mm
24mm 26mm 28mm 30mm 32mm 34mm 36mm 38mm 40mm 42mm 44mm 46mm |
605.48ST-Ti
605.50ST-Ti 605.52ST-Ti 605.54ST-Ti 605.56ST-Ti 605.58ST-Ti 605.60ST-Ti 605.62ST-Ti 605.64ST-Ti 605.66ST-Ti 605.68ST-Ti 605.70ST-Ti |
605.48ST
605.50ST 605.52ST 605.54ST 605.56ST 605.58ST 605.60ST 605.62ST 605.64ST 605.66ST 605.68ST 605.70ST |
48mm
50mm 52mm 54mm 56mm 58mm 60mm 62mm 64mm 66mm 68mm 70mm |
4.5 mm Cortical Screw Self-Tapping Specification
- 4.5 mm Cortical Screw Self-Tapping available lengths are 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, 65mm and 70mm.
- 4.5 mm Cortical Screw Self-Tapping is made from pure Titanium and SS 316L.
- Any additional length sizes of this screw will be made on demand.
- This is Self Tapping Screw. Self Tapping Screws cuts its own thread while being driven into the bone. It makes a small hole while entering the bone which creates a tight friction fit between the threads. This helps fight vibration loosening and allows the parts to be taken apart if needed.
- Instruments are available for this screw such as Bone Taps, Combined Drill & Tap Sleeve, Counter Sink, Depth Gauge, Drill Bits, Drill Guide, Drill Sleeve, Hollow Mill Screw Removal, Reverse Measuring Device, Screw Drivers and Screw Holding Forceps etc.
4.5 mm Cortical Screw Self-Tapping uses
4.5 mm Cortical Screw Self-Tapping is used in fixation of 4.5-5 mm locking plates.
Bone screws are the most commonly used orthopedic implants. There are many different types and sizes of screws for different types of bones. Most bone screws are made out of stainless steel or titanium alloys. The outer diameter, root diameter, and thread pitch and angle are important in determining screw mechanics.
In orthopedics, screws are typically described by their outer diameter, for example, a “4.5 mm Cortical Screw” has an outside diameter of 4.5 mm. The pitch of a screw is the linear distance travelled by a screw for one full turn of the screw. The screw advances by a distance equal to the distance between the threads with each full turn. Cortical screws have a lower pitch and therefore more number of threads. Cortical bone screws have a greater depth of the screw to increase the surface area and therefore improve the purchase, as the bone is weaker.
Screws function by converting the tightening torque into internal tension in the screw and elastic reactions in the surrounding bone. This creates compression between the fracture fragments that the screw is holding together. 4.5 mm Cortical Screw is typically inserted into holes drilled equal to the root diameter and are either self-tapping or are inserted tapped (threaded) holes. The torque to insert cortical bone screws can be high, so the screws must be properly inserted into the correct size drilled hole and designed to withstand insertion torque levels expected in cortical bone. Cortical bone screws have large, deep threads that grip the spongy bone well. Because of the relatively low strength of the cortical bone, failure of the screw itself during insertion is rare, but pull out can be an issue.
