2.5/3.0/3.5/4.0mm Cannulated Screw Set Orthopedic Surgical For Trauma Surgery Instruments Pet

A cannulated headless compression screw instrument set is a complete veterinary orthopedic surgical kit used to place cannulated screws for fracture fixation, bone fragment compression, and joint stabilisation in dogs and cats. 

Built for trauma surgery, this instrument set delivers precision drilling, guided screw placement, and secure fixation across four screw diameters 2.5mm, 3.0mm, 3.5mm, and 4.0mm making it suitable for a wide range of small animal orthopedic procedures.

What This Cannulated Screw Set Is Used For

This trauma surgery instrument set is engineered for veterinary orthopedic applications where headless compression screws are required, including:

• Long bone fracture fixation in dogs and cats
• Osteotomy fixation (e.g., TPLO, TTA, and other corrective procedures)
• Joint fragment and osteochondral fixation
• Small bone and epiphyseal fracture stabilisation
• Compression fixation in trauma and reconstructive orthopedic surgery

The cannulated design allows every drill and screwdriver to pass over a guide pin (K-wire), giving the surgeon accurate, minimally invasive screw placement and reducing the risk of screw misalignment.

Key Features and Benefits

• Four screw diameter options (2.5/3.0/3.5/4.0mm) 

one set covers small, medium, and larger patients without needing multiple kits

• Fully cannulated instruments 

every drill bit, countersink, and screwdriver is hollow-bored to track precisely over a guide pin

• Colour-coded components 

guide pins, drill bits, and screwdrivers are grouped and colour-marked by diameter for fast identification during surgery

• Quick-connect handles with silicone grips 

140mm ergonomic silicone handles provide secure grip and reduce hand fatigue during long procedures

• Complete drilling-to-fixation workflow 

includes guide pins, cannulated drill bits, hollow countersink drills, drill sleeves, inner sleeves, and hex screwdrivers for each screw size

• Screw bracket organiser 

a dedicated stainless steel bracket with size-labeled slots keeps every screw diameter (Ø2.5–Ø4.0mm) organised and easy to select

• Depth Gauge and Limiting Wrench included

allows accurate measurement of screw length and controlled screw insertion torque

• Screw clamping pliers

for secure, controlled handling of small headless screws during insertion

• Autoclavable stainless steel sterilisation box 

305mm x 265mm x 90mm perforated case for safe storage and steam sterilisation between uses

What’s Included in the Complete Instrument Set

General Handling Instruments

• Screw bracket (organiser tray for Ø2.5/3.0/3.5/4.0mm screws) x1
• Depth Gauge (0–60mm range) x1
• Screw clamping pliers (85mm) x1
• Limiting wrench (SW2.5, 125mm) x1
• Cleaning guide pin (ø0.8 x 200mm) x1
• Quick Handle with silicone grip (140mm) x2

2.5mm Screw Instrument Group

• Cannulated Drill Bit ø2.0 (passes 0.8mm pins) x1
• Drill Stopper ø2.0 x1
• Guide pin ø0.8 x 150mm x2
• Hollow Countersink Drill ø3.0 (passes 0.8mm pins) x1
• Drill Sleeve ø2.0 x1
• Inner sleeve ø2.0 (passes 0.8mm pins) x1
• Hollow Hex screwdriver SW1.5 (passes 0.8mm pins) x1
• Hex screwdriver SW1.5 x1

3.0mm Screw Instrument Group

• Cannulated Drill Bit ø2.2 (passes 1.0mm pins) x1
• Drill Stopper ø2.2 x1
• Guide pin ø1.0 x 150mm x2
• Hollow Countersink Drill ø3.5 (passes 1.0mm pins) x1
• Drill Sleeve ø2.2 x1
• Inner sleeve ø2.2 (passes 1.0mm pins) x1
• Hollow Hex screwdriver SW2.0 (passes 1.0mm pins) x1
• Hex screwdriver SW2.0 x1

3.5mm Screw Instrument Group

• Cannulated Drill Bit ø2.5 (passes 1.2mm pins) x1
• Drill Stopper ø2.5 x1
• Guide pin ø1.2 x 150mm x2
• Hollow Countersink Drill ø4.3 (passes 1.2mm pins) x1
• Drill Sleeve ø2.5 x1
• Inner sleeve ø2.5 (passes 1.2mm pins) x1

4.0mm Screw Instrument Group

• Cannulated Drill Bit ø2.8 (passes 1.2mm pins) x1
• Drill Stopper ø2.8 x1
• Guide pin ø1.2 x 150mm x2
• Hollow Countersink Drill ø5.0 x1
• Drill Sleeve ø2.8 x1
• Inner sleeve ø2.8 (passes 1.2mm pins) x1
• Hollow Hex screwdriver SW2.5 (passes 1.2mm pins) x1
• Hex screwdriver SW2.5 x1

Storage

• Perforated stainless steel sterilisation box (305mm x 265mm x 90mm) x1

Technical Specifications

Typical Use Cases

• Small animal fracture repair clinics performing routine and emergency trauma orthopedic surgery
• Veterinary teaching hospitals requiring a full-range instrument set for training in cannulated screw fixation
• Referral orthopedic surgery centres treating dogs and cats across a range of body sizes and bone diameters
• Mobile/field veterinary surgical teams that need one organised, sterilisable kit covering multiple screw sizes

Frequently Asked Questions

What is a cannulated headless compression screw instrument set used for? 

It is used in veterinary orthopedic surgery to drill, countersink, and insert cannulated headless compression screws over a guide pin, allowing precise fixation of fractures, osteotomies, and bone fragments in dogs and cats.

What screw sizes does this instrument set support? 

This set supports four cannulated screw diameters: 2.5mm, 3.0mm, 3.5mm, and 4.0mm, each with its own matched drill bits, countersinks, guide pins, and screwdrivers.

Is this instrument set suitable for both dogs and cats? 

2. The range of screw diameters (2.5mm–4.0mm) allows surgeons to select the appropriate size for smaller patients like cats and toy-breed dogs, as well as larger dog breeds.

What is included in the sterilisation box? 

The full set screw bracket, depth gauge, screw clamping pliers, limiting wrench, cleaning guide pin, quick handles, guide pins, cannulated drill bits, hollow countersink drills, drill sleeves, inner sleeves, and hex screwdrivers is organised in a perforated stainless steel sterilisation case measuring 305mm x 265mm x 90mm.

Can this instrument set be autoclaved? 

Yes. The instruments and the perforated stainless steel sterilisation box are designed for steam sterilisation/autoclave reprocessing between surgical uses.

What guide pin size is used with each screw diameter? 

The 2.5mm screw group uses ø0.8mm guide pins, the 3.0mm screw group uses ø1.0mm guide pins, and the 3.5mm and 4.0mm screw groups use ø1.2mm guide pins.

What is the difference between the drill sleeve and the inner sleeve? 

 The drill sleeve protects surrounding soft tissue and guides the cannulated drill bit to the bone, while the inner sleeve fits inside the drill sleeve and tracks directly over the guide pin for added drilling accuracy.

Does the set include a way to measure screw length? 

 Yes. A Depth Gauge with a 0mm–60mm measuring scale is included to determine the correct screw length before insertion.