Integrated Distraction and Retraction Blades for Spinal Surgery

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Solution Overview

Problem

Current spinal fusion procedures require separate instruments for bone distraction and tissue retraction, which can lead to complications such as dysphagia and reduced visibility during surgery.

Innovation Solution

An orthopedic system comprising distraction blades with integrated bone pins and wide blocking blades that can perform both bone distraction and tissue retraction, reducing the need for multiple instruments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate instruments are used for bone distraction and tissue retraction, then each function can be performed independently, but the complexity of the surgical procedure increases and the risk of complications such as dysphagia increases

Engineering Contradiction:
Improverisk of complicationsVSAvoidnumber of instruments
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines distraction blades and retraction blades into a single integrated instrument assembly. The distraction blades engage with bone pins to separate vertebral bodies, while retraction blades simultaneously retract soft tissues laterally. This merging of functions into one instrument reduces the number of separate tools needed and allows coordinated action to minimize complications like dysphagia.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The surgical instrument system performs multiple functions simultaneously: distraction of bone, retraction of soft tissue, and maintenance of surgical exposure. The frame-supported assembly with both distraction and retraction blades enables a single instrument to fulfill roles that previously required separate devices, improving efficiency and reducing procedural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Illumination intensity

If separate instruments are used for bone distraction and tissue retraction, then each instrument can be optimized for its specific function, but surgical visibility is reduced due to multiple instruments in the surgical field

Engineering Contradiction:
Improvesurgical visibilityVSAvoidnumber of instruments
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

By integrating distraction and retraction functions into one instrument assembly, the surgical field contains fewer separate tools. The retraction blades are positioned to laterally displace soft tissues and create clear visualization of the surgical site, while the distraction blades perform bone separation. This unified approach improves visibility by reducing instrument clutter.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If multiple instruments are used for distraction and retraction, then comprehensive tissue management is achieved, but the time required for surgical procedure increases

Engineering Contradiction:
Improvesurgical efficiencyVSAvoidprocedure time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The integrated instrument allows simultaneous performance of distraction and retraction tasks that previously required sequential use of separate instruments. The frame-supported assembly with coordinated blades enables the surgeon to achieve both tissue retraction and bone distraction in a single operational step, reducing procedure time and improving surgical efficiency.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The instrument design enables continuous simultaneous action of distraction and retraction throughout the surgical procedure. Rather than switching between instruments or performing functions sequentially, the integrated system maintains both functions active at the same time, maximizing productive use of surgical time.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS12295560B2Orthopedic tools for implantation
Publication Date: 2025.05.13 GLOBUS MEDICAL INC
  • US12295560B2 patent drawing
  • US12295560B2 patent drawing
  • US12295560B2 patent drawing

AI summary

The present application is generally directed to improved instruments and instrument features for distraction and tissue retraction. In particular, the present application is directed to distraction blades and wide blocking blades that can be used together, or individually, to assist in the distraction of bone and the retraction of tissue during a surgical procedure, such as a spinal fusion procedure.