Lateral Spine Surgery Tabletop for Access and Patient Retention

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Solution Overview

Problem

During lateral spine surgery, existing surgical tables hinder access to the surgical site due to patient positioning issues, interference with medical equipment, and instability, particularly when stabilizing rods and screws are placed, and there is a need for improved patient retention and alignment.

Innovation Solution

A surgical table with adjustable lift columns, a torso section with removable side members, and retention pads, along with articulating features to facilitate access and secure patient positioning, allowing for adjustments to accommodate various surgical needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the patient is positioned on the side of the table for stabilizing rod and screw placement, then access to the surgical site is improved, but the patient is no longer centered on the table causing interference with the C-Arm and the table

Engineering Contradiction:
Improveaccess to surgical siteVSAvoidpatient positioning compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The table top is divided into a head section, a torso section, and a leg section that can move independently. The torso section can be laterally shifted relative to the head and leg sections, allowing the patient to be positioned off-center for surgical access while maintaining proper alignment with imaging equipment through coordinated section movement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The table top transitions from a static structure to a dynamic one where the torso section can laterally shift during surgery. This dynamic adjustment allows the patient positioning to change from centered (for imaging) to off-center (for surgical access) and back again, resolving the contradiction between surgical access and equipment compatibility.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the patient is positioned in a lateral position for spine surgery, then access to the disk space is improved, but the stability of the patient is reduced requiring additional securing measures

Engineering Contradiction:
Improveaccess to disk spaceVSAvoidpatient stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The retention system is segmented into multiple independent pads (chest retention pad, back retention pad, thigh retention pad) that can be individually adjusted and positioned. This segmentation allows for distributed stabilization of the patient's body segments, providing comprehensive stability while maintaining lateral positioning for surgical access.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Retention pads serve as intermediary elements between the patient and the table top. These pads provide friction and mechanical retention forces that stabilize the patient in the lateral position without requiring direct contact between the patient's skin and the table surface, improving both comfort and stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the patient's abdomen is positioned away from the surgical site to keep internal organs out of the way, then surgical access is improved, but the patient positioning becomes more complex and time-consuming

Engineering Contradiction:
Improvesurgical accessVSAvoidpatient positioning time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The table top is pre-configured with retention pads and articulating mechanisms that automatically adjust patient positioning when the torso section is laterally shifted. The abdominal displacement occurs as a preliminary action of the lateral shift mechanism, eliminating the need for manual, time-consuming positioning adjustments by the surgical team.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The dynamic lateral shifting of the torso section automatically repositions the patient's abdomen away from the surgical site as the section moves. This dynamic positioning mechanism performs the complex abdominal displacement task through a simple mechanical motion, reducing the time and effort required for patient positioning.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12575989B2Lateral spine surgery top for two column operating table
Publication Date: 2026.03.17 ALLEN MEDICAL SYST INC
  • US12575989B2 patent drawing
  • US12575989B2 patent drawing
  • US12575989B2 patent drawing

AI summary

A surgical table includes a pair of lift columns. A table top extends between each of the pair of lift columns. The table top forms a patient support surface configured to receive a patient. The table top includes a head section, a leg section, and a torso section extending between the head section and the leg section. At least one retention pad extends from the table top and is configured to position against the patient. An arm rest extends from the head section and is configured to receive an arm of the patient.