Multi-Implant Delivery Instrument with Nested Retaining Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current spinal stabilization systems require complex and time-consuming procedures for handling and positioning multiple implants during surgery, necessitating a more efficient method for delivering implants to implantation locations.
Innovation Solution
A delivery instrument with a mounting member, actuator, and retaining mechanism that allows for axial retention and dispensing of multiple implants, enabling the sequential delivery of implants to surgical locations without re-loading, facilitated by an actuator that moves between retaining and dispensing positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple implants are delivered sequentially using traditional methods, then each implant can be positioned accurately, but the surgical procedure becomes time-consuming and complex
Solution Approach 1:
The delivery instrument is segmented into distinct functional components: a mounting member with multiple implant receptacles, a retaining mechanism with multiple retaining members, and an actuator with distal and proximal portions. This segmentation allows each component to perform its specific function efficiently while working together as an integrated system, enabling sequential implant delivery without compromising positioning accuracy or increasing procedural time
2Ease of operation
If multiple implants are handled separately during surgery, then each implant can be controlled individually, but the procedural complexity increases
Solution Approach 1:
Multiple implant delivery functions are merged into a single integrated instrument. The mounting member holds multiple implants, the retaining mechanism controls multiple implants simultaneously through retaining members, and the actuator operates all retaining members through a single actuation action. This merging reduces procedural complexity while maintaining individual implant control capability
Solution Approach 2:
The delivery instrument is designed as a multi-functional device that can deliver multiple implants of different types (e.g., pedicle screws, rods, washers, cages) through a single instrument platform. The mounting member can accommodate various implant configurations, and the actuating mechanism provides universal control over all implant deliveries, eliminating the need for multiple separate delivery tools
3Measurement precision
If implants are retained on the delivery instrument, then they can be delivered precisely to surgical locations, but the instrument structure becomes more complex
Solution Approach 1:
The retaining mechanism is nested within the mounting member, with retaining members positioned to engage implants from within the mounting portion. The actuator is nested within the mounting member, with its distal portion interacting with the retaining mechanism through the wall of the mounting member. This nested arrangement provides precise implant retention and delivery control while minimizing the overall instrument structure
Data Source
AI summary
Instruments and methods are provided for delivering multiple implants to locations for implantation in a patient without requiring a second implant to be loaded onto or engaged to the delivery instrument after delivery of a first implant.