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Cheng Screw Removal and Bone Trephine Set
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Rotating Offset Handle Hex Driver
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Screw Extractors
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NEW! Screw Extractor with Speed Lock
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Screw Removal Pliers
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Screw/Pin Removal Locking Pliers
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Star Bit Driver Set
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Universal Screw Removal Instrument System
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Universal Screwdriver Set
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Cheng Screw Removal and Bone Trephine Set
Cannulated to allow use of a standard 1.6mm (.062") threaded K-wire to help facilitate grasping and removal of a bone sample
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Designed by Edward Cheng, MD |
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Can be used with the T-handle or with power.
K-wire not included.
For Screw Removal
The trephine ends are designed to fit over embedded screws for extraction with minimal bone loss. Six sizes available — internal diameters of 5 mm, 6.5 mm, 8 mm, 9 mm, 10 mm, and 11 mm. The T-handle allows for precise, controlled use. |
For Core Bone Sampling
Cannulated T-handle and trephines allow use of a standard 1.6 mm (.062") threaded K-wire to help facilitate grasping and removal of a core bone sample for biopsy or core decompression. Variety of core diameters yields bone samples of sufficient size for pathology. K-wire not included. |
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Product No’s:
1426-00 [Complete Set with Case]
Individual Product Numbers:
1426-01 [5 mm Internal Diameter]
Internal Diameter: 5 mm
Overall Length: 7.125" (18,1 cm)
1426-02 [6.5 mm Internal Diameter]
Internal Diameter: 6.5 mm
Overall Length: 7.125" (18,1 cm)
1426-03 [8 mm Internal Diameter]
Internal Diameter: 8 mm
Overall Length: 7.125" (18,1 cm)
1426-05 [9 mm Internal Diameter]
Internal Diameter: 9 mm
Overall Length: 7.125" (18,1 cm)
1426-06 [10 mm Internal Diameter]
Internal Diameter: 10 mm
Overall Length: 7.125" (18,1 cm)
1426-07 [11 mm Internal Diameter]
Internal Diameter: 11 mm
Overall Length: 7.125" (18,1 cm)
1425-14 [Handle Assembly]
Dimensions: 4" x 2" (10,2 cm x 5,1 cm)
1025 [Sterilization Case]
Replacement Part:
1425-14-B-COMP [Handle Retaining Screw]
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Rotating Offset Handle Hex Driver
Offset shaft and smooth spin handle allow for a rapid crank action when desired |
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Large hex driver for 6.5 mm and 4.5 mm diameter screws. Especially helpful in insertion and removal of long screws.
Product No: 7241
Overall Length: 10.125" (25,7 cm)
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Screw Extractors
Designed to help remove screws with stripped or damaged heads |
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- Extractors must be used with drill in reverse.
- Screw head is reamed with burnishing end, and is then removed with the left turn thread end.
- Care must be taken to burnish no more than 1/16" (1.5 mm) deep, as burnishing too deep can weaken the screw head.
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Product No’s:
7250-01 [2.5 mm Screw Extractor]
Overall Length: 6"
7250-02 [3.5 mm Screw Extractor]
Overall Length: 6"
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Screw Extractor with Speed Lock
Universal extractor designed to accommodate a large range of screws and screw heads from 3.95 to 9.5 mm |
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Designed by Khaled Sarraf, MD
& Konstantinos Doudoulakis, MD |
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Can also be used to help with removal of other devices that may require a twisting universal locking gripper.
Product No: 2021
Overall Length: 9.25" (23,5 cm)
Jaw Width: 11 mm
Jaw Length: 5 cm
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Screw Removal Pliers
Jaw designed to grasp onto a screw or screw head to help in removal |
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Product No: 2020
Overall Length: 8"
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Star Bit Driver Set
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Set consists of four star bits — T10, T15, T20, & T25, a handle which accommodates any of the above bits, and a sterilization case. The drive end (A/O) is designed for easy and quick engagement with the universal instrument handle. The ergonomic, modular handle has two connection points, allowing for both straight and T-handle orientations.
Product No's:
5194-00 [4 Star Bits w/Handle & Case]
5194-01 [4 Star Bits w/Case only]
Also sold individually:
S0113 [Universal 4" Handle]
5194-10 [T10 with A/O End]
5194-15 [T15 with A/O End]
5194-20 [T20 with A/O End]
5194-25 [T25 with A/O End]
9003 [Case]
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Universal Screw Removal Instrument System
Designed to remove solid and cannulated screws, including partial, broken, stripped, and submerged screws
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Product No’s:
S0010-00 [Complete System with Case]
S0113 [Universal Instrument Handle]
S0128 [1.5mm Screw Extractor]
S0116 [2.5mm Screw Extractor]
S0130 [3.5mm Screw Extractor]
S0117 [1.5mm Hex Driver]
S0114 [2.5mm Hex Driver]
S0115 [3.5mm Hex Driver]
S0132 [4.0mm Hex Driver]
S0133 [5.0mm Hex Driver]
S0136 [2.5mm Cannulated Hex Driver]
S0137 [3.5mm Cannulated Hex Driver]
S0138 [4.0mm Cannulated Hex Driver]
S0139 [5.0mm Cannulated Hex Driver]
S0118 [Large Cruciform Screwdriver]
S0119 [Small Cruciform Screwdriver]
S0141 [Mini Cruciform Screwdriver]
S0120 [Single Slot Screwdrive]r
S0121 [2.2mm Trephine]
S0122 [3.2mm Trephine]
S0123 [4.2mm Trephine]
S0124 [4.7mm Trephine]
S0125 [7.2mm Trephine]
S0127 [Universal Extractor - Shaft Only]
S0127-01 [Large Extraction Bolt Body]
S0127-03 [Small Extraction Bolt Body]
S0127-04 Extractor Wrench
S0129 [Pick]
S0140 [Cannulated Drive Extension]
9017 [Screw Removal Case Only]
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Used for removal of stripped hex screws, buried screws, and partial screws with broken screw heads. The drive end (A/O) is designed for easy and quick engagement with the universal instrument handle.
Screw Extractors
Unique thread design accommodates removal of stripped screws. The instrument “locks” into the screw head and allows removal once engaged. Designed to be used in a counter-clockwise direction.
Trephines
Designed to fit over submerged screws for extraction with minimal bone loss. Extraction is enhanced by the unique tooth design. Designed to be used in a counter-clockwise direction.
Universal Extractor
Designed to remove screws with heads partially or completely missing. The cone shaped head fully engages the remaining screw and optimizes the force needed for removal. The bolt is disposable and locks into place using a unique thread design. Designed to be used in a counter-clockwise direction.
Hex Drivers
Available in all standard hex sizes. Also offered in a cannulated shaft version for easier removal of buried screws.
Screwdrivers
Standard cruciform screwdrivers in large, small, and mini, and single slot.
Cannulated Drive Extension
Used when a longer instrument shaft is desired.
Pick
Used to remove fragments and bone or tissue from screw head.
Universal Instrument Handle
The single handle allows the surgeon to decide which direction is most efficient and comfortable. The quick-connect release mechanism allows for quick interoperative exchange.
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Universal Screwdriver Set
Helps eliminate the opening of multiple sterile packs when a specific size or style of screwdriver is needed |
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Helpful during revision total joint surgery where screws have been used, removal of bone plates, fracture fixation screws or bone graft screws. Set consists of: 7 (seven) double ended screwdriver bits — small & large single slot, cross & cruciate, 3.5 mm & 4.5 mm hex, small & large phillips, small, medium, & large star — a handle which accommodates any of the above bits, and a sterilization case.

Product No's: 5195
5195-01 [Handle]
5195-02 [Straight (single slot) Lg & Sm]
5195-03 [Cross/Cruciate]
5195-04 [Hex 3.5mm & 4.5mm]
5195-05 [Phillips Lg & Sm]
5195-08 [Small Star: #6 & #8]
5195-06 [Medium Star: #10 & #15]
5195-07 [Large Star: #20 & #25]
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