Traction Pin Assembly With Guide and Adapter for Rapid Bone Stabilization

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Solution Overview

Problem

Existing traction pin insertion techniques are difficult to perform, especially for untrained users or in resource-constrained environments, and there is a need for a system that can be used quickly and cost-effectively to stabilize fractured bones.

Innovation Solution

A traction pin assembly comprising a traction pin with a couplable shaft and tip, an adapter for axial retention, and a guide for stabilization, which can be used with a driver and sterile cover, allowing for easy and sterile insertion into bone tissue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional surgical drills and surgical tools are used in operating rooms, then sterile environment and fracture stabilization are achieved, but device complexity and time consumption increase

Engineering Contradiction:
Improvefracture stabilizationVSAvoidsurgical tool requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The traction pin system is divided into separate functional components: a sterile adapter that interfaces with the driver, a sterile cover that protects the pin, and the traction pin itself. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity and sterility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adapter serves as an intermediary component between the driver and the traction pin. It provides a sterile interface that allows the driver to engage and rotate the traction pin while maintaining the sterile barrier, eliminating the need for the driver itself to be sterile.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional traction pin insertion techniques are used, then fracture stabilization is achieved, but ease of operation and user training requirements worsen

Engineering Contradiction:
Improvefracture stabilizationVSAvoiduser operation difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The adapter is designed to self-align and self-retain the traction pin during insertion. The pin automatically engages with the adapter's retention features, eliminating the need for complex manual alignment procedures and reducing the skill level required for successful insertion.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The adapter and sterile cover are pre-assembled with the traction pin in a ready-to-use configuration. This preliminary preparation eliminates the need for complex assembly procedures during the surgical procedure, allowing even untrained users to quickly deploy the system.

Inventive Principle:
Principle #10Preliminary action

3Speed

If rapid traction pin insertion is needed in emergency settings, then response time is reduced, but insertion precision and stabilization reliability may worsen

Engineering Contradiction:
Improveinsertion speedVSAvoidfracture stabilization
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The adapter, sterile cover, and traction pin are pre-assembled into a ready-to-deploy unit before sterilization. This eliminates assembly time during the emergency procedure while ensuring all components are properly configured for reliable fracture stabilization.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The adapter includes automatic retention features that securely hold the traction pin during rapid insertion. The self-retaining mechanism ensures the pin remains properly positioned and secured even during high-speed deployment, maintaining stabilization reliability despite reduced insertion time.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20260096838A1Traction pin assemblies, components, systems, and methods
Publication Date: 2026.04.09 ARBUTUS MEDICAL INC
  • US20260096838A1 patent drawing
  • US20260096838A1 patent drawing
  • US20260096838A1 patent drawing

AI summary

Example embodiments provide traction pin assemblies, components, systems, and methods. An example traction pin assembly comprises a pin insertable into bone tissue to stabilize the bone tissue. The traction pin comprises a shaft extending between an end of the traction pin and a tip of the traction pin. The end of the traction pin is couplable to a driver that is operable to rotate the pin. The assembly may also comprise an adapter that is couplable to the driver to axially retain the traction pin relative to the driver. The assembly may also comprise a guide that defines a passage through which a portion of the shaft of the traction pin extends and provides a surface for gripping the guide. The surface has a larger surface area than a surface of the portion of the shaft extending through the guide.