Cheng Biopsy Trephine System with Tray

Edward Cheng, MD

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

  • • Allows use of trephine at oblique angles to bone surface by using an anchoring K-wire and cannulated trephine
  • • Avoids “skipping” of trephine teeth on bone surface
  • • Facilitates optimal approach angle and direction of trephine
  • • Variety of core diameters yields bone samples of sufficient size for pathology
  • • Adapters allow for use of a power drill
  • • Minimally invasive — soft tissue sleeve protects surrounding structures and tissue
  • • Can also be used for bone graft harvesting
  • • Repositioning guide allows easy adjustment of targeting K-wire

Product Number(s)

1425-00 [Complete Set with Case]

Set Includes/Available Separately:
1425-01 [Soft Tissue Protector – Small]
1425-02 [Soft Tissue Protector – Medium]
1425-03 [Soft Tissue Protector – Large]
1425-04 [Dilator – 4.75 mm]
1425-05 [Dilator – 6.25 mm]
1425-06 [Dilator – 7.75 mm]
1425-07 [Dilator – 9.25 mm]
1425-08 [Trephine – Small 5 mm]
1425-09 [Trephine – Medium 6,5 mm]
1425-10 [Trephine – Large 8 mm]
1425-11 [Drive End – Small]
1425-12 [Drive End – Medium]
1425-13 [Drive End – Large]
1425-14 [Driver Retraction Handle]
 Includes (2) Handle Retaining Screws (#1425-14-B-COMP)
1425-15 [3-Hole Wire Repositioning Guide]
1425-Case [Case]

Replacement Part:
1425-14-B-COMP [Handle Retaining Screw]

Dimensions
Trephine Internal Diameters: 5 mm, 6.5 mm, 8 mm