Herbert Screw Instruments Set – Guide-Wire System for Scaphoid Headless Screw Fixation

Herbert Screw Instruments Set, SKU PS-OP-010006, is a reusable orthopedic fixation system manufactured from German-forged stainless steel for guide-wire-directed preparation and placement of compatible Herbert-pattern headless compression screws. The configuration includes PS-305.03 and PS-305.06 Quick Coupling Handles; PS-305.09 Cannulated Hex Screwdriver SW2.0 mm; PS-305.12 Cannulated Hex Screwdriver SW2.5 mm; PS-305.15 Hex Screwdriver SW2.0 mm; PS-305.18 Cannulated Countersink Ø4.0 mm; PS-305.21 Cannulated Countersink Ø3.0 mm; PS-305.24 Hex Screwdriver SW2.5 mm; PS-305.27 Drill Sleeve Ø2.2 mm; PS-305.30 Drill Sleeve Ø3.0 mm; PS-305.33 Screw Holder; PS-305.36 Wire Sleeve Ø2.2 mm; PS-305.39 Wire Sleeve Ø3.0 mm; PS-305.42 Hex Key; PS-305.45 Cannulated Drill Bit Ø2.2 mm; PS-305.48 Cannulated Drill Bit Ø3.0 mm; PS-305.51 Depth Gauge; two PS-305.54 Threaded Wires 1.0 × 150 mm; PS-305.57 Clean Wire Ø1.0 mm; two PS-305.60 Guider Wires 1.0 × 150 mm; and PS-305.000 Empty Container. The set supports Herbert and compatible headless compression screw fixation, particularly scaphoid waist and proximal-pole fractures and selected small articular or periarticular fragments requiring buried screw fixation.

Guide-Wire Cannulation, Quick Coupling and Driver Control

The Herbert Screw Instruments Set is organized around a 1.0 mm guide-wire axis that establishes screw trajectory before cannulated drilling and definitive implant advancement. The PS-305.54 threaded wire provides fixation within the selected osseous pathway, while PS-305.60 supplies an additional 1.0 × 150 mm guide option for trajectory control. PS-305.36 and PS-305.39 wire sleeves support guided access, and the corresponding Ø2.2 mm and Ø3.0 mm drill sleeves constrain the selected drill pathway through the operative corridor. PS-305.45 and PS-305.48 cannulated drill bits then advance over the wire so bone preparation remains coaxial with the previously established trajectory. The two quick-coupling handles provide reusable hand interfaces for compatible shafted components, allowing instruments to be attached, controlled, exchanged, and removed during sequential preparation. SW2.0 and SW2.5 driver options are provided in both cannulated and solid patterns: the cannulated drivers allow screw advancement while the guide wire remains in place, whereas the solid patterns support compatible manipulation when wire guidance is no longer required. The screw holder provides direct implant handling, while the hex key supports compatible system adjustment during tray setup or fixation.

Scaphoid and Headless Compression Screw Fixation Workflow

During scaphoid fixation, the set enters the operative sequence after fracture reduction and determination of the intended central screw axis. For scaphoid waist or proximal-pole fractures, the 1.0 mm guide wire is introduced through the selected dorsal or palmar approach along the planned osseous trajectory, with position assessed in multiple fluoroscopic planes before drilling. The depth gauge is used after wire placement to determine the implant length required to achieve fixation without unintended penetration into an adjacent joint. Depending on the compatible Herbert screw system, either the Ø2.2 mm or Ø3.0 mm cannulated drill pathway is selected and advanced over the retained wire through its corresponding sleeve. The Ø3.0 mm or Ø4.0 mm cannulated countersink provides controlled preparation at the entry region when required by the specific implant technique. A compatible Herbert-pattern screw is then attached or controlled with the screw holder and advanced using the appropriate SW2.0 or SW2.5 cannulated hex driver while the guide wire maintains the planned axis. After the screw has achieved the intended buried position and interfragmentary compression, the wire is removed and final implant position, fracture alignment, articular clearance, and fixation stability are assessed fluoroscopically.

2.2 mm and 3.0 mm Drill Pathways with SW2.0 and SW2.5 Drivers

The Herbert Screw Instruments Set provides two parallel preparation and driving groups so the operative team can match instrumentation to the compatible headless compression screw selected for the case. The Ø2.2 mm group consists of PS-305.27 Drill Sleeve, PS-305.36 Wire Sleeve, and PS-305.45 Cannulated Drill Bit, creating a coordinated smaller-diameter bone-preparation pathway. The Ø3.0 mm group uses PS-305.30 Drill Sleeve, PS-305.39 Wire Sleeve, and PS-305.48 Cannulated Drill Bit for the corresponding larger preparation sequence. Cannulated countersinks are supplied in Ø3.0 mm and Ø4.0 mm configurations to address the entry geometry prescribed by the selected screw system. Driver selection is similarly divided between SW2.0 and SW2.5 hex interfaces, with both cannulated and solid screwdriver patterns represented. The cannulated configuration is chosen when the implant is advanced over the retained 1.0 mm guide wire; the solid pattern is available for compatible manipulation after wire removal or during another stage defined by the implant system. Two threaded wires and two guider wires provide replacement or additional trajectory-control options. The depth gauge determines implant length, while the quick-coupling handles create interchangeable hand interfaces for compatible preparation components.

Set Includes:

German Stainless Steel, Cannulated Reprocessing and Procurement Standards

The reusable Herbert Screw Instruments Set is manufactured within Peak Surgicals’ German-forged stainless-steel instrument platform for repeated orthopedic handling, mechanical preparation, cleaning, inspection, and sterilization. Cannulated components require direct attention during reprocessing because blood, bone particles, marrow, and irrigation residue can remain within narrow internal pathways after fixation procedures. The Ø1.0 mm clean wire provides mechanical access through compatible cannulations, while the guide sleeves, drill sleeves, cannulated drill bits, countersinks, and hollow screwdrivers require thorough flushing and visual inspection before packaging. Drill cutting edges, countersink surfaces, hexagonal tips, guide wires, quick-coupling interfaces, depth-gauge markings, and screw-holding surfaces should be examined for deformation, corrosion, retained debris, or loss of mechanical engagement after each use. Peak Surgicals supplies reusable instruments non-sterile unless otherwise designated, so the set requires processing before initial clinical use and after subsequent procedures according to the healthcare facility’s validated protocol. Peak Surgicals supports ISO 13485 certified manufacturing standards and CE-marked reusable instrumentation. U.S. procurement requirements should be documented within the applicable FDA registration, listing, labeling, and quality framework rather than interpreted as blanket individual product approval.

How does the Herbert Screw Instruments Set differ from a conventional cannulated cancellous screw instrument set?
The Herbert Screw Instruments Set is configured for compatible headless compression screw fixation rather than a conventional headed cancellous screw construct. A Herbert-pattern screw is designed to become buried within bone and uses differential thread geometry to generate interfragmentary compression as the implant advances. A conventional cannulated cancellous screw normally retains a defined screw head at the near cortex and can be used with a washer where broader head support is required. Herbert instrumentation therefore emphasizes small guide-wire trajectories, compact cannulated drills, countersinks, and fine SW2.0 or SW2.5 driver interfaces appropriate to the selected headless system. The current set provides Ø2.2 mm and Ø3.0 mm preparation pathways rather than the larger drills commonly found in major-fragment cannulated screw trays. This configuration is particularly relevant to scaphoid and selected small articular or periarticular fixation where minimizing implant prominence is clinically important.

How are the 1.0mm wires, Ø2.2mm and Ø3.0mm drills, and SW2.0/SW2.5 drivers selected?
The Herbert Screw Instruments Set uses a 1.0 × 150 mm wire to establish the intended screw axis before definitive bone preparation. In scaphoid fixation, the wire is positioned along the planned central trajectory and as close to perpendicular to the fracture plane as the anatomy permits. The Ø2.2 mm or Ø3.0 mm cannulated drill pathway is then selected according to the compatible Herbert screw system being implanted rather than being chosen independently by bone size. The corresponding drill and wire sleeves maintain the selected trajectory while protecting access through the operative corridor. SW2.0 and SW2.5 screwdriver tips correspond to different compatible screw-driving interfaces and must match the recess of the implant selected for the procedure. The Ø3.0 mm and Ø4.0 mm countersinks are similarly paired with the operative requirements of the relevant screw configuration, while the depth gauge determines the required implant length after guide-wire placement.

What do CE, ISO 13485 and FDA requirements mean when procuring this set?
The Herbert Screw Instruments Set is supplied within Peak Surgicals’ medical-device manufacturing and procurement framework. ISO 13485 relates to the quality-management system used to control reusable medical-device manufacturing and associated processes. CE marking supports conformity requirements for applicable regulated markets in which the instrumentation is supplied. For United States purchasing, FDA compliance concerns the relevant registration, device listing, labeling, quality-system, and supporting regulatory documentation. The term FDA approved should not be applied automatically to each reusable orthopedic instrument unless that exact regulatory status applies to the individual device. Hospitals and distributors can retain the applicable documentation with vendor qualification, purchasing, warranty, sterile-processing, and instrument-tray records.

How do the quick-coupling handles function during Herbert screw fixation?
The two Quick Coupling Handles in the Herbert Screw Instruments Set provide reusable hand-control interfaces for compatible detachable shafts used during bone preparation and screw placement. The selected shaft is seated into the coupling interface so the surgeon can manipulate the connected drill, driver, or compatible component without changing to a completely separate fixed-handle instrument. Secure coupling transfers hand rotation and axial control to the working shaft while keeping the connection stable during the operative step. When another preparation diameter or driver interface is required, the connected component can be released and exchanged for the next compatible instrument. This modular arrangement is useful during sequential guide-wire, drilling, countersinking, and screw-driving stages because the tray contains multiple shaft dimensions and working profiles. The coupling interface should be checked during preoperative inspection for secure engagement and after reprocessing for unrestricted attachment and release.

How should a hospital clean and manage the complete Herbert Screw Instruments Set?
The Herbert Screw Instruments Set contains multiple narrow cannulated components, so sterile processing must address both external surfaces and internal lumens after every procedure. Blood and bone debris should be removed promptly from the guide sleeves, drills, countersinks, cannulated screwdrivers, and other accessible passages before residue dries. PS-305.57 Clean Wire Ø1.0 mm can assist mechanical access through compatible cannulations, followed by the facility’s validated flushing, cleaning, rinsing, and drying process. Cutting edges, hexagonal tips, quick-coupling mechanisms, depth-gauge surfaces, guide wires, and sleeve bores should then be inspected for retained debris, corrosion, deformation, or impaired function. The 22 listed instruments and components should be reconciled by their individual PS-305 catalog references before the tray is returned to its PS-305.000 container. The complete set can then proceed through the validated sterilization cycle used by the healthcare facility for reusable orthopedic stainless-steel instrumentation.