Double Sleeve Ø 2.5/4.0mm

Double Sleeve Ø 2.5 or 4.0mm, SKU PS-OP-6016 and Code No. PS-218.000, is an orthopedic external-fixation sleeve manufactured from medical-grade steel for use within small-frame fixation systems. Its 2.5/4.0 mm double-sleeve configuration is designed around the dimensional relationship between the smaller fixation component and the 4.0 mm external-fixation system. The component is associated with external fixation constructs for the forearm and metacarpals, where controlled positioning of fixation elements is required during assembly of a compact tubular frame. Orthopedic trauma surgeons, hand surgeons, and orthopedic surgical teams can use the sleeve as part of a dedicated forearm and metacarpal external-fixation inventory in operating rooms, trauma centers, orthopedic hospitals, and specialist clinics. The product works as an interface component rather than a cutting, grasping, or retracting instrument, so its clinical value lies in maintaining the intended relationship between compatible fixation elements during frame construction. Peak Surgicals lists the Double Sleeve at $19.80 USD and identifies it as reusable medical-grade steel with CE, FDA, and ISO certification indicators.

Dual-Sleeve Geometry and Fixation Alignment

The defining feature of the Double Sleeve is its dual-diameter guidance geometry, identified as 2.5/4.0 mm and corresponding to the small external-fixation architecture used for forearm and metacarpal constructs. Rather than acting as a cutting or grasping instrument, the sleeve establishes a controlled mechanical interface between fixation elements of different dimensions. The smaller 2.5 mm passage accommodates the corresponding smaller fixation element, while the 4.0 mm dimension interfaces with the 4.0 mm external-fixation side of the construct. This dimensional relationship allows the surgeon to maintain a predictable orientation while assembling the fixation frame. The rigid cylindrical body resists deformation under normal frame-assembly forces and keeps the mating components concentrically guided through the sleeve. Its simple geometry also eliminates moving parts such as ratchets, pivots, box locks, springs, and thumb vents. During operative assembly, the sleeve is positioned according to the fixation-system configuration, the compatible components are passed or seated through their respective passages, and the frame is secured using the associated clamps and connecting hardware. The result is a compact interface specifically suited to small tubular external-fixation systems.

Forearm and Metacarpal External Fixation Workflow

Double Sleeve Ø 2.5 or 4.0mm belongs to the component architecture used for external fixation of the forearm and metacarpals. In a typical frame-building workflow, the surgeon first establishes the required skeletal fixation points and positions the threaded fixation pins in the selected bone segments. The pins are then incorporated into a small external frame using compatible clamps and 4.0 mm connecting rods. The Double Sleeve provides the dimensional interface needed where the 2.5 mm fixation element and 4.0 mm frame component must maintain their intended relationship. This makes the component relevant during construct assembly rather than during bone preparation itself. For forearm fractures, the sleeve supports compact frame configurations where limited working space makes dimensional control important. For metacarpal stabilization, its small-system geometry corresponds to the reduced scale of the hand skeleton and associated external-fixation components. The sleeve can therefore be integrated into temporary stabilization, fracture management, and staged orthopedic trauma workflows when the compatible external-fixation system calls for a 2.5/4.0 mm interface. Its role ends once the fixation components are correctly aligned and secured within the assembled frame.

2.5/4.0 mm Interface and Component Selection

The 2.5/4.0 mm specification defines the principal selection criterion for this component. The 2.5 mm dimension corresponds to the smaller fixation-side interface, while the 4.0 mm dimension corresponds to the connecting-rod or frame-side architecture used in the small forearm and metacarpal external-fixation system. This is different from selecting a surgical instrument according to blade length or jaw width because the Double Sleeve is selected primarily for dimensional compatibility with the surrounding fixation hardware. A surgeon or orthopedic procurement team should therefore match the sleeve to a system using the corresponding 2.5 mm and 4.0 mm components. The associated external-fixation family includes small clamps, connecting rods, front-threaded pins, a compression-distraction device, an 8 mm spanner, and an 8 mm T-wrench, establishing the sleeve as one element within a coordinated frame assembly. The sleeve itself does not provide compression, distraction, pin insertion, or cutting. Its function is to maintain the intended mechanical relationship between compatible fixation elements. Using the correct 2.5/4.0 mm configuration preserves the dimensional architecture of the construct and avoids substituting a sleeve designed for another external-fixation diameter.

Medical-Grade Steel, Reprocessing, and Compliance

Peak Surgicals identifies the Double Sleeve as a reusable medical-grade steel component. Steel is appropriate for this application because the sleeve requires dimensional stability, mechanical rigidity, corrosion resistance, and a cleanable surface during repeated professional processing. Its uncomplicated cylindrical geometry has no articulated joints or enclosed mechanical mechanisms, allowing the surface and passages to be visually inspected during sterile-processing preparation. As a reusable orthopedic component, it should pass through the healthcare facility's validated cleaning, rinsing, drying, inspection, packaging, and sterilization workflow before subsequent clinical use. The Peak Surgicals product page displays CE Certified, FDA Certified, and ISO Certified indicators, while the company's procurement framework supports ISO 13485 requirements. The Double Sleeve is intended for professional orthopedic inventory rather than consumer use and can be incorporated into hospital, trauma-center, orthopedic-clinic, and distributor supply programs. The product page lists a 30 Days Money Back Guarantee and 100% Quality Satisfaction statement. Its $19.80 USD listed price provides a defined unit-level procurement reference for replacement stock and external-fixation system replenishment.

How does the Double Sleeve differ from a single sleeve in an external-fixation system?
The Double Sleeve provides a 2.5/4.0 mm dimensional interface rather than a single-diameter passage. Its two-diameter configuration allows the smaller fixation-side component to relate correctly to the 4.0 mm frame architecture. A single sleeve is designed around one primary diameter and therefore does not provide the same dual-interface function. The Double Sleeve is specifically associated with small external fixation for the forearm and metacarpals. It works with the surrounding clamps, pins, and connecting rods rather than replacing them. Its role is alignment and mechanical interfacing, not pin insertion or bone preparation. This makes the Double Sleeve a system component rather than a standalone fixation device.

Why is the 2.5/4.0 mm configuration selected for forearm and metacarpal fixation?
The 2.5 mm dimension corresponds to the smaller fixation-side component within the small external-fixation architecture. The 4.0 mm dimension corresponds to the connecting-rod and frame-side geometry. Forearm constructs use this relationship when a compact frame must maintain controlled dimensional alignment. Metacarpal constructs benefit from the same small-system architecture because the hand requires appropriately scaled fixation components. The selection is therefore based on compatibility with the surrounding external-fixation hardware rather than on bone length alone. The sleeve should be paired with the corresponding 2.5 mm and 4.0 mm components. This preserves the intended mechanical relationship within the assembled frame.

What do CE, ISO 13485, and FDA procurement support mean for the Double Sleeve?
Peak Surgicals displays CE, FDA, and ISO certification indicators for the Double Sleeve. ISO 13485 is the medical-device quality-management standard relevant to the manufacturer's quality system. CE marking supports procurement within applicable European regulatory frameworks. FDA-related documentation supports procurement requirements for applicable United States medical-device markets. Hospitals can incorporate these records into vendor qualification and purchasing documentation. Distributors can use the compliance information when maintaining regulated orthopedic product files. Individual healthcare organizations remain responsible for applying their own market-specific regulatory and purchasing requirements.

Does the Double Sleeve have a ratchet, pivot, lock, spring, or adjustment mechanism?
The Double Sleeve is a passive orthopedic interface component and does not use a ratchet, pivot, spring handle, box lock, or thumb vent. Its control function comes from the fixed dimensions of its two sleeve passages. During frame assembly, the surgeon positions the sleeve so the compatible 2.5 mm fixation element and 4.0 mm frame component follow the intended system geometry. The rigid body maintains that relationship while the surrounding clamps and connecting hardware are secured. No cutting or grasping action occurs at the sleeve itself. Its mechanical contribution is therefore dimensional guidance and positional control within the fixation construct. The associated external-fixation system supplies the active clamping and adjustment functions.

Can hospitals and distributors stock the Double Sleeve as a reusable external-fixation component?
Yes, Peak Surgicals lists the Double Sleeve as reusable medical-grade steel. It can be maintained as an individual replacement component within an orthopedic external-fixation inventory. Before reuse, the component should undergo the facility's validated cleaning, inspection, packaging, and sterilization process. The product page lists CE, FDA, and ISO certification indicators for professional procurement. The current listed price is $19.80 USD per unit. Peak Surgicals also provides a 30 Days Money Back Guarantee and customer support. This makes the component suitable for hospital, orthopedic clinic, trauma-center, and distributor inventory management.