Miller Bone Rasp – 7.25 in Double-Ended 5 mm & 7 mm Orthopedic Rasp

Miller Bone Rasp, SKU PS-000020, is a reusable double-ended orthopedic instrument designed for controlled rasping, smoothing, and contouring of exposed bone surfaces. The instrument measures 7 1/4 in (184 mm) overall and incorporates two working-end sizes, 5 mm and 7 mm, allowing the surgeon to change the contact width according to the anatomical area and amount of bone refinement required. The smaller 5 mm end provides a more localized working surface for focused contouring, while the broader 7 mm end increases contact across a larger osseous area. This compact Miller pattern is suitable for orthopedic procedures where irregular bone edges, prominences, or prepared surfaces require gradual manual refinement rather than cutting with an osteotome or powered device. The double-ended construction allows both rasp widths to remain immediately available during the procedure without changing instruments. Peak Surgicals lists PS-000020 as reusable, latex-free, and manufactured from medical-grade steel, with a current price of $15.40.

Double-Ended 5 mm and 7 mm Bone Rasping Design

The defining feature of the Miller Bone Rasp is its double-ended configuration with separate 5 mm and 7 mm working surfaces. Each rasp end uses a textured working profile that removes or smooths small amounts of exposed bone as the surgeon moves the instrument across the target surface. The 5 mm end provides a narrower contact footprint and is useful for localized contouring, restricted bone margins, or areas where greater precision is required. The 7 mm end engages a wider osseous surface and can increase efficiency when broader smoothing or contour refinement is needed. Unlike bone-cutting forceps, osteotomes, or chisels, a rasp is intended to produce gradual surface modification through repeated controlled strokes rather than divide a bone segment in one action. The rigid central body gives the surgeon direct tactile feedback as the working surface passes over cortical irregularities. Pressure should remain controlled, and the instrument should be repositioned frequently so excessive bone is not removed from one area.

Orthopedic Bone Smoothing and Contouring Workflow

During orthopedic surgery, the Miller Bone Rasp can be introduced after adequate exposure has provided direct access to the bone surface requiring refinement. The surgeon selects either the 5 mm or 7 mm end according to the size of the operative area and places the rasp against the visible osseous margin. Controlled back-and-forth or directional rasping strokes can then be used to smooth sharp edges, refine a prepared bone surface, or reduce small irregularities remaining after cutting or reconstruction. The instrument can support fracture surgery, reconstructive procedures, corrective bone work, small-bone surgery, and other orthopedic workflows where gradual contouring is preferred. The double-ended design allows the surgeon to begin with one working width and rotate the instrument to the opposite end as the required contact area changes. Bone removal should remain incremental, with the surface reassessed repeatedly for contour and proximity to surrounding anatomy. Soft tissue, nerves, vessels, tendons, implants, and other protected structures should remain clear of the active rasping surface throughout use.

PS-000020 7.25-Inch Length and 5 mm vs 7 mm Tip Selection

Peak Surgicals SKU PS-000020 is specifically documented as a 7 1/4 in (184 mm) Miller Bone Rasp with 5 mm and 7 mm double-ended working surfaces. This exact dimensional combination is also recognized in established surgical device catalogs, confirming it as a defined Miller configuration rather than a generic bone rasp size. The 5 mm end is suited to more localized work where a narrow contact area improves access or control. The 7 mm end provides a broader rasping surface for areas where increased bone contact is appropriate. Other Miller rasp patterns exist with different widths, cutting directions, serration styles, and overall lengths, so those specifications should not be imported into PS-000020. For example, commercial Miller families include 4 mm, 6 mm, 7 mm, and 8 mm working ends in different combinations. Procurement teams should therefore retain the exact Peak SKU together with the 184 mm length and 5 mm × 7 mm configuration so this instrument remains distinct from other Miller rasp variants.

Medical-Grade Steel, Reprocessing and Procurement Standards

Peak Surgicals identifies the Miller Bone Rasp as a reusable medical-grade steel instrument and also lists it as latex-free. Reprocessing should begin promptly after clinical use because bone particles, blood, marrow, and tissue residue can become trapped within the textured rasp surfaces if allowed to dry. Both the 5 mm and 7 mm working ends should receive careful cleaning so debris is removed from the serrations or surface texture without damaging the rasp profile. Cleaning should be followed by thorough rinsing and complete drying before inspection. Sterile-processing personnel should examine both working ends for flattened teeth, corrosion, bending, cracking, excessive wear, or retained contamination and confirm that the central shaft remains structurally straight. The instrument should be sterilized according to the healthcare facility's validated reusable surgical-instrument protocol and any applicable manufacturer instructions. Peak displays CE, FDA, and ISO certification badges, while institutional procurement documentation should retain the exact supplier, SKU, applicable ISO 13485 records, and any device-specific regulatory information rather than describing the instrument as individually FDA approved without exact evidence.

How does the Miller Bone Rasp differ from a bone file?
The Miller Bone Rasp uses textured working surfaces intended for controlled removal and contouring of exposed bone. Bone files may use finer cutting patterns intended more specifically for final smoothing of smaller irregularities. In practice, the names rasp and file can overlap across surgical catalogs depending on tooth pattern and manufacturer terminology. The Miller Bone Rasp provides two distinct working widths within one double-ended instrument. Its 5 mm and 7 mm ends allow the surgeon to vary the amount of bone surface contacted during each stroke. Selection should depend on the desired degree of contouring, bone size, operative access, and surface finish required.

When should the 5 mm end be used instead of the 7 mm end?
The 5 mm working end provides a narrower rasping surface for focused contouring or smaller exposed bone areas. It can be useful where surgical access is restricted or where the surgeon wants to modify a specific irregularity without contacting a broad surrounding surface. The 7 mm end provides greater contact area and can be more efficient when a wider bone margin requires smoothing. Miller Bone Rasp PS-000020 includes both dimensions so the surgeon can change working width without requesting a second instrument. Neither end should be selected solely on speed because excessive rasping can remove more bone than intended. The appropriate end depends on bone contour, target size, access, surrounding anatomy, and the amount of refinement required.

What do CE, ISO 13485 and FDA references mean for procurement?
Peak Surgicals displays CE, FDA, and ISO certification badges on the Miller Bone Rasp listing. ISO 13485 concerns quality-management systems used in medical-device manufacturing and controlled production processes. CE documentation supports applicable conformity-assessment requirements within relevant medical-device markets. FDA AccessGUDID independently contains a commercially distributed 5 mm × 7 mm, 7.25-inch Miller Bone Rasp configuration. That external record belongs to a specific manufacturer and catalog number and should not automatically be assigned to Peak SKU PS-000020. Hospitals should retain the Peak SKU, supplier documentation, applicable certificates, and any exact device records required by their procurement process.

How does the double-ended design improve control during bone contouring?
The double-ended design places two different rasp widths on one compact instrument. The surgeon can use the 5 mm end for localized work and then rotate the Miller Bone Rasp to access the broader 7 mm end. This reduces the need to exchange instruments when the required contact width changes during the same procedure. Each end remains manually controlled through the central shaft, allowing direct tactile feedback as the rasp passes over bone. Progressive strokes can be used to assess how much material has been removed before additional contouring is performed. The working end should remain visible and controlled so nearby soft tissue and other structures are not unintentionally contacted.

How should hospitals order and reprocess the Miller Bone Rasp?
Hospitals should order this exact instrument using Peak Surgicals SKU PS-000020 together with the 7.25-inch overall length and 5 mm × 7 mm double-ended specification. Peak Surgicals currently lists the product at $15.40 and displays a 30-day money-back guarantee. The instrument is documented as reusable and latex-free. Following surgery, bone particles and biological residue should be removed promptly from both rasping surfaces and the central instrument body. Cleaning should be followed by thorough rinsing, complete drying, and inspection for worn rasp teeth, corrosion, deformation, or retained debris. Final sterilization should follow the healthcare facility's validated reusable-instrument protocol before PS-000020 returns to the orthopedic bone file and rasp tray.