Modular Surgical Tool with Pivoting Ends for Disc Space Access
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Solution Overview
Problem
Conventional surgical tools lack the capability to perform multiple functions such as measuring intervertebral disc space height, preparing the space for an implant, and inserting the implant efficiently, and they do not allow for easy adjustment of insertion angles.
Innovation Solution
A modular surgical tool with an elongate shaft assembly, handle assembly, and interchangeable tool ends that allow for pivotal and rotational movement, enabling multiple insertion angles and various tool functions like measurement and preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple conventional surgical tools are used to perform measuring, preparing, and inserting functions, then functional versatility is improved, but device complexity and surgical time increase
Solution Approach 1:
The patent combines multiple surgical functions (measuring disc space height, preparing the space, and inserting implants) into a single integrated tool assembly. The elongate shaft assembly serves as a common platform that can accommodate different tool ends for each surgical step, eliminating the need for multiple separate tools and reducing surgical complexity.
Solution Approach 2:
The elongate shaft assembly is designed as a universal platform that can perform multiple functions through interchangeable tool ends. The shaft includes features like the tool end attachment assembly and spring member that enable it to support various surgical operations (measurement, preparation, implant insertion) with a single base structure.
2Adaptability or versatility
If conventional surgical tools are used without angle adjustment capability, then device simplicity is maintained, but adaptability to different insertion angles is limited
Solution Approach 1:
The tool end attachment assembly incorporates dynamic movement capabilities including pivotal movement and rotational movement, allowing the tool end to be positioned at multiple angles relative to the elongate shaft. This dynamic adjustability enables surgeons to access the intervertebral disc space from different angles while maintaining a relatively simple overall device structure.
3Productivity
If multiple separate tools are used for sequential surgical steps, then ease of operation for each step is maintained, but surgical efficiency and time consumption deteriorate
Solution Approach 1:
The tool end attachment assembly is pre-configured with features such as the spring member and boss-recess interface that enable quick tool end changes. The spring member is pre-loaded to provide automatic engagement or disengagement of tool ends, allowing surgeons to efficiently transition between different surgical steps without complex tool changes.
Data Source
AI summary
A modular surgical tool that is used to insert instruments into the intervertebral disc space of a patient to measure the height of the intervertebral disc space, to prepare the intervertebral disc space for an implant, and to insert the implant into the intervertebral disc space using a plurality of interchangeable tool ends. Advantageously, this modular surgical tool permits multiple insertion angles.