Flexible Reamer Set Nitinol Reamer with 7.5–15 mm Medullary Heads

Flexible Reamer Set Nitinol Reamer, SKU PS-OP-5128, is a reusable modular orthopedic system with a Nitinol flexible shaft and German stainless steel medullary cutting heads for canal preparation during intramedullary fixation. Set code PS-507N contains PS-507N.01, the Nitinol shaft; PS-507N.03, the T-handle; PS-507N-7.5, 7.5 mm; PS-507N-8.0, 8 mm; PS-507N-8.5, 8.5 mm; PS-507N-9.0, 9 mm; PS-507N-9.5, 9.5 mm; PS-507N-10.0, 10 mm; PS-507N-10.5, 10.5 mm; PS-507N-11.0, 11 mm; PS-507N-11.5, 11.5 mm; PS-507N-12.0, 12 mm; PS-507N-12.5, 12.5 mm; PS-507N-13.0, 13 mm; PS-507N-13.5, 13.5 mm; PS-507N-14.0, 14 mm; PS-507N-14.5, 14.5 mm; PS-507N-15.0, 15 mm; and PS-507N.000, the dedicated container. Orthopedic trauma surgeons use this nineteen-item set after reduction, entry-portal creation, and guide-wire placement during antegrade or retrograde femoral nailing and suprapatellar or infrapatellar tibial nailing. The single shaft carries all sixteen diameters, allowing progressive 0.5 mm enlargement of the diaphyseal isthmus before nail insertion. It is configured for trauma operating rooms, orthopedic hospitals, teaching centers, and implant-service inventories.

Nitinol Shaft Flexion and Modular Torque Transfer

The system works by coupling one calibrated reamer head to PS-507N.01, then transmitting rotational input through the Nitinol shaft to the distal cutting geometry. Nickel-titanium provides elastic flexibility that lets the assembly conform to the established trajectory through a bowed femur or the longitudinal tibial canal while recovering its working alignment after controlled deflection. This behavior helps the operator maintain a guide-wire-centered route instead of imposing the straighter axis associated with a rigid medullary instrument. Each stainless steel head removes cancellous bone at the opening passes and progressively contacts the endosteal cortex as diameter increases. Audible and tactile chatter identifies cortical engagement, allowing the surgeon to reassess resistance, reduction, and fluoroscopic position before the next step. PS-507N.03 supplies a transverse grip for assembly, manual rotation, and deliberate torque control where the operative technique uses hand-driven manipulation. The modular coupling permits head exchange without changing the shaft, so all 7.5–15 mm options share one transmission element. Secure engagement is critical because load moves through the handle, coupling, elastic segment, and cutting head as one chain. The container keeps every diameter indexed for intraoperative selection, surgical count reconciliation, and controlled movement into decontamination.

Femoral and Tibial Intramedullary Reaming Workflow

For antegrade femoral nailing, retrograde femoral nailing, infrapatellar tibial nailing, and suprapatellar tibial nailing, canal enlargement follows fracture reduction, opening of the correct entry point, and central placement of a compatible ball-tipped guide wire across the fracture. The operating surgeon selects an initial head from calibrated imaging, the measured isthmus, cortical morphology, and the chosen implant system. The Nitinol shaft is advanced along the established route while a protective sleeve from the nailing platform shields the entry corridor. Reaming proceeds in 0.5 mm increments, with the lower diameter removing cancellous bone and successive heads enlarging the pathway until controlled cortical contact is detected. During each pass, the team preserves alignment, checks AP and lateral fluoroscopy, avoids forceful thrust, and intermittently withdraws the head to clear debris from the cutting profile. The final diameter is determined by the nail manufacturer’s operative technique, planned implant width, actual resistance, and the allowance needed for passage through the narrowest canal segment. Narrow adult tibial canals commonly use the lower and middle range; larger femoral anatomy can require the upper sequence. This set prepares the medullary corridor and does not replace the guide wire, tissue sleeve, entry reamer, reduction instruments, or nail-specific targeting equipment.

Sixteen Head Sizes and Single-Shaft Selection

PS-507N-7.5, PS-507N-8.0, PS-507N-8.5, and PS-507N-9.0 establish the initial pathway in narrow canals or begin progressive enlargement after entry preparation. PS-507N-9.5, PS-507N-10.0, PS-507N-10.5, PS-507N-11.0, and PS-507N-11.5 cover common intermediate stages for adult tibial and femoral intramedullary workflows. PS-507N-12.0, PS-507N-12.5, PS-507N-13.0, PS-507N-13.5, PS-507N-14.0, PS-507N-14.5, and PS-507N-15.0 provide the larger progression used when canal dimensions, cortical feedback, and implant planning support further preparation. Every head advances the diameter by 0.5 mm, giving the surgeon a defined change in bone removal between passes rather than a broad jump. PS-507N.01 accepts the complete range, which eliminates a shaft exchange when crossing from intermediate to larger heads. PS-507N.03 adds manual leverage for coupling checks and controlled hand rotation. Selection begins below the anticipated terminal diameter, then advances according to tactile response and imaging while reduction is maintained. The final head remains linked to fracture pattern, endosteal width, bone quality, nail diameter, and the implant-specific over-reaming instruction. PS-507N.000 separates and identifies all nineteen coded articles for counting, transport, and reprocessing.

Nitinol, Stainless Steel, Reprocessing, and Compliance

The material configuration assigns elastic shaft behavior to Nitinol and cutting duty to German stainless steel reamer heads. The nickel-titanium segment tolerates controlled flexion along long-bone curvature, while the stainless components provide edge hardness, dimensional stability, and corrosion resistance for repeated orthopedic use. A satin, non-reflective surgical finish on exposed steel surfaces limits glare and supports visual inspection beneath operating-room lighting. After use, the assembly is disassembled at the coupling and transferred for point-of-use soil control, validated cleaning, rinsing, drying, inspection, packaging, and steam sterilization under the healthcare facility’s approved cycle. Reprocessing personnel examine every flute for retained bone debris or edge damage, inspect the shaft for kinking, permanent set, surface disruption, or irregular rotation, and test each connection before tray release. Detergent chemistry, water quality, ultrasonic processing, lubrication, load configuration, and autoclave parameters follow the device instructions and local validation. CE marking supports European conformity documentation, and ISO 13485 identifies the controlled medical-device quality system used for manufacture and traceability. FDA-compliant procurement refers to the applicable establishment, listing, labeling, import, and device documentation for the destination transaction rather than a general claim of FDA approval. Peak Surgicals supports one-set ordering, OEM configuration, warranty coverage, and post-sale replacement assistance.

Products Specification

How does this Nitinol version differ from the standard Flexible Reamer Set?
The Flexible Reamer Set Nitinol Reamer uses one nickel-titanium shaft for every head from 7.5 through 15 mm. The standard PS-507 configuration uses two stainless steel flexible shafts, with one assigned through 13 mm and another for 13.5–15 mm. Nitinol supplies elastic flexion and recovery as the assembly follows a curved medullary trajectory. The standard version divides torque transmission between diameter-specific shaft groups. Both systems use modular stainless steel cutting heads in 0.5 mm increments and a T-handle. The Nitinol layout removes the intraoperative shaft change when moving above 13 mm, while the alternative preserves its specified two-shaft pairing. Selection depends on the hospital’s nailing platform, validated compatibility, surgeon preference, reprocessing pathway, and inventory policy.

How are the 7.5–15 mm reamer heads selected during femoral or tibial nailing?
Selection begins with calibrated imaging, preoperative implant planning, and measurement of the narrowest medullary isthmus. The surgeon introduces a head that can traverse the prepared pathway without excessive force and remains centered on the guide wire. Lower sizes support the opening sequence or narrow tibial anatomy, while larger diameters address wider femoral canals when the operative plan permits. The Flexible Reamer Set Nitinol Reamer advances by 0.5 mm, allowing resistance and cortical chatter to be reassessed after each pass. Final diameter is linked to nail width and the over-reaming allowance specified for that implant system. AP and lateral fluoroscopy confirm trajectory, fracture reduction, and distal wire position throughout preparation. Bone quality, comminution, cortical thickness, heat generation, and debris clearance also influence whether progression continues.

What do CE, ISO 13485, and FDA-compliant procurement mean for this set?
CE marking supports conformity documentation for supply into applicable European medical-device markets. ISO 13485 identifies the quality-management framework governing controlled manufacture, traceability, corrective action, and production records for the Flexible Reamer Set Nitinol Reamer. United States buyers evaluate FDA requirements through the device classification, establishment and listing status, labeling, importer obligations, and transaction-specific documentation. These terms describe different regulatory functions and are not interchangeable approvals. Hospital procurement teams should retain the quotation, SKU, set code, batch records, labeling, and supplied conformity documents in the vendor file. Distributors must align import and market-registration records with the destination jurisdiction. Peak Surgicals can provide commercial and product documentation for institutional review.

How do the T-handle and modular coupling control the reaming assembly?
PS-507N.03 gives the surgeon a transverse manual grip for deliberate rotational input and assembly control. The selected head is fully seated on PS-507N.01 before the instrument enters the canal. Torque then travels from the handle through the Nitinol shaft to the stainless steel cutting profile. The Flexible Reamer Set Nitinol Reamer separates shaft compliance from distal bone removal, allowing the transmission element to flex while the head rotates on the planned route. Manual feedback alerts the operator to increased resistance or cortical chatter but does not replace fluoroscopy or implant-specific technique. The scrub team checks the coupling before every pass and confirms that the shaft rotates smoothly without permanent deformation. A loose connection, damaged head, irregular rotation, or kink removes the component from service.

What should sterile processing and operating-room teams inspect before issue?
The count includes nineteen coded items: one Nitinol shaft, one T-handle, sixteen reamer heads, and one container. The Flexible Reamer Set Nitinol Reamer is disassembled so cleaning reaches each cutting flute, coupling surface, and accessible recess. After rinsing and drying, personnel inspect steel edges for dullness, impact damage, staining, or retained soil. The shaft is examined for kinking, surface disruption, permanent set, and inconsistent rotation, while every head is tested for secure engagement. Dry components are arranged in the container and processed in the validated steam cycle authorized by the facility. Release documentation should connect set identity, sterilizer load, inspection outcome, and service history. Hospitals and distributors may order one set, request OEM configuration, and use after-sale support for eligible replacements.