Cerclage Cable System with Integrated Bone Plate Apertures
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Solution Overview
Problem
Current cerclage techniques for stabilizing fractured bones often face challenges in securely immobilizing large bones, requiring multiple fixation methods like screws and plates, and lack efficient tools for maintaining cerclage cable tension and preventing motion along the bone.
Innovation Solution
A cerclage cable system comprising a bone plate with apertures, securing devices such as cerclage cable anchors and buttons, and a crimp, along with a tensioner tool that applies and maintains tension using a modular tip, cam lock, and rotary actuator, to securely wrap and stabilize the bone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fixation methods (screws, plates, cerclage cables) are used to stabilize large bones, then the reliability of fracture fixation is improved, but the device complexity and surgical procedure complexity increase
Solution Approach 1:
The patent integrates the cerclage cable attachment directly into the bone plate structure through integrated apertures and attachment mechanisms. This merging of previously separate components (bone plate and cerclage cable system) into a unified integrated fixation device reduces overall system complexity while maintaining the reliability benefits of multiple fixation methods working together.
2Stability of the object's composition
If cerclage cable is looped around bone and secured with deformation crimping to maintain tension, then the stability of bone immobilization is improved, but the ease of operation and surgical time are worsened
Solution Approach 1:
The bone plate is pre-configured with integrated apertures and attachment features during manufacturing. This preliminary preparation eliminates the need for complex intraoperative cable routing and attachment procedures, allowing surgeons to simply thread the cerclage cable through pre-positioned openings and secure it with crimping, thereby maintaining immobilization stability while significantly improving ease of operation.
Solution Approach 2:
The integrated apertures in the bone plate serve as intermediaries that simplify the connection between the cerclage cable and the bone plate structure. These pre-formed openings provide guided pathways for cable insertion and positioning, making the crimping and tensioning process more straightforward while ensuring stable immobilization.
3Manufacturing precision
If cerclage cable is threaded through openings in structures attached to the plate and tightened, then the precision of cable positioning is improved, but the time required for cable installation increases
Solution Approach 1:
The bone plate includes pre-configured integrated apertures with specific geometries and positions designed to guide cerclage cable placement. This preliminary structuring of the attachment points ensures precise cable positioning is achieved automatically during installation, eliminating the need for time-consuming alignment procedures while maintaining high positioning precision.
Data Source
AI summary
A cerclage cable system is disclosed which includes a bone plate, one or more securing devices, and one or more cerclage cables. The bone plate includes a plurality of bone plate apertures thereupon, wherein the bone plate is configured to be affixed to a bone. The one or more securing devices include a body having a proximal end and a distal end, wherein at least one securing device aperture is disposed toward the proximal end, wherein the distal end of the securing device is configured to be inserted into and received by the plurality of bone plate apertures. The one or more cerclage cables include two terminal ends, wherein the one or more cerclage cables are wrapped around the bone, wherein one terminal end of the one or more cerclage cables is passed through at least one securing device aperture.