C Rings are components of Orthopedic External Fixation systems, designed with a partially open C-Shaped Ring Geometry to function as part of the External Fixator Frame used to create a surgical construct suited to the anatomical region and fixation requirements.
The design features multiple Connection / Fixation Holes distributed around the ring circumference, providing several attachment points for compatible components within the External Fixation system, such as Rods, Connecting Elements, or Wire / Pin Fixation Interfaces, according to the system design and approved Surgical Technique.
The range is available in 9 progressively sized configurations, starting from 80 mm and extending to 240 mm, with a consistent 20 mm increment between consecutive sizes. This broad range supports Ring Size selection according to Limb Anatomy, Fixation Site, Required Frame Clearance, and the intended External Fixator configuration.
The product family is listed under the general reference Cat. No.: AMS 601.001. Each size carries an individual Cat. No. and GTIN Number, supporting Product Identification, Traceability, Procurement, Surgical Inventory Management, and Stock Control.
Product Description
A C Ring is a Structural Frame Component used within selected Circular or Modular External Fixation systems to form part of the external frame surrounding the limb or target bone region.
It differs from a Full Ring through its Open C-Shaped Profile, providing an alternative Frame Geometry when constructing an External Fixation Frame according to the requirements of the case.
Its general role within the system can be represented as follows:
Bone Fixation Element → Connector / Rod → C Ring → External Fixation Frame
The method of integration with other components depends on the compatibility specifications of the External Fixation system.
Product Components and Design
- C-Shaped Ring Body
The main structural body of the component, designed in a C Ring / Open Ring configuration to function as part of the external frame.
- Multiple Fixation Holes
The ring contains multiple peripheral holes that provide Multiple Connection Points for mounting compatible fixation components.
The number of holes, their diameters, and spacing are not specified in the provided table.
- Peripheral Frame Structure
The circumferential portion of the ring forming the primary Structural Geometry of the External Fixator Component.
- Open Ring Section
The open section of the design gives the product its C-Shaped Configuration, distinguishing it from a Complete Circular Ring.
- Size-Specific Geometry
The dimensions of the ring vary according to the selected size, with a range extending from 80 mm to 240 mm.
Product Use
C Rings are used as components of compatible External Skeletal Fixation systems and may, depending on the system design and approved indications, be incorporated into applications such as:
- Circular External Fixation
- Modular External Fixation Constructs
- Fracture Stabilization using an External Fixator
- Limb Reconstruction Procedures
- Bone Segment Stabilization
- Frame Construction around the affected limb
- Selected Deformity Correction or Reconstruction applications when included within the official system indications
Selection of the appropriate Ring Size depends on:
- Limb Anatomy
- Anatomical Region
- Required Ring Clearance
- Fixation Site
- Frame Geometry
- Position of Bone Fixation Elements
- Surgical Planning
- Compatibility with the External Fixation System
The final Frame Configuration should be determined by a Qualified Orthopedic Surgeon in accordance with the approved IFU and Surgical Technique.
Key Benefits
Wide Size Range
The range is available in sizes from:
80 mm to 240 mm
providing multiple options for constructing an External Fixation Frame.
20 MM Size Progression
Sizes increase consistently in increments of:
20 mm
providing an organized and easy-to-select size range.
C-Shaped Geometry
The open C-Ring Configuration provides an alternative Frame Geometry compared with a Full Circular Ring.
Multiple Connection Points
The rings feature multiple holes that may be used as attachment points for compatible system components.
External Fixator Integration
Designed to function within a construct incorporating compatible components such as:
- Connecting Rods
- Clamps
- Wire / Pin Interfaces
- Other Compatible Frame Components
Product Traceability
Each size has an individual Cat. No. and GTIN Number, supporting:
- Product Identification
- Traceability
- Procurement
- Inventory Management
- Stock Control
Technical Specifications
| Size | Cat. No. | GTIN No. |
| 80 mm | AMS 601.001.080 | 6221361013537 |
| 100 mm | AMS 601.001.100 | 6221361013551 |
| 120 mm | AMS 601.001.120 | 6221361013575 |
| 140 mm | AMS 601.001.140 | 6221361013599 |
| 160 mm | AMS 601.001.160 | 6221361013612 |
| 180 mm | AMS 601.001.180 | 6221361013636 |
| 200 mm | AMS 601.001.200 | 6221361013650 |
| 220 mm | AMS 601.001.220 | 6221361013674 |
| 240 mm | AMS 601.001.240 | 6221361013698 |
Technical Overview
Product Name: C Rings
Product Type: C-Shaped External Fixation Ring
Product Category: Orthopedic External Fixation Frame Component
General Cat. No.: AMS 601.001
Available Sizes: 80 / 100 / 120 / 140 / 160 / 180 / 200 / 220 / 240 mm
Size Range: 80–240 mm
Size Increment: 20 mm
Number of Configurations: 9
Design: Open C-Shaped Ring with Multiple Connection Holes
System Application: External Fixation Construct
Identification: Individual Cat. No. & GTIN No. for each size
Product Features
- C-Shaped External Fixation Ring Design.
- Designed for use within compatible Orthopedic External Fixation systems.
- Open Ring Geometry providing an alternative Frame Configuration.
- Features Multiple Connection / Fixation Holes.
- Available in 9 Size Configurations.
- Wide size range from 80 to 240 mm.
- Consistent 20 mm size increments.
- Provides multiple options according to Limb Anatomy and Frame Requirements.
- Supports construction of Circular / Modular External Fixation Constructs according to the fixation system.
- Provides multiple attachment points for compatible Connecting Components.
- Supports Preoperative Frame Planning.
- Allows selection of the appropriate Ring Size during External Fixator preparation.
- Individual Cat. No. for each size.
- Individual GTIN Number for each configuration.
- Supports Product Traceability, Procurement, Inventory Management, and Stock Control.
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