Sinusoidal Gastric Reduction Device for Endoscopic Pouch Creation

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Solution Overview

Problem

Current gastric reduction surgeries, such as Roux-en-Y gastric bypass, are invasive, time-consuming, and require extensive resources, leading to lengthy recovery times and significant physical and monetary costs due to their complexity and invasiveness.

Innovation Solution

A gastric reduction apparatus and method that creates a transoral passageway through the stomach using a sinusoidal-shaped device with tissue-engaging surfaces and needle passing channels, allowing for the secure attachment of purse string sutures and mattress stitches to reduce stomach size endoscopically, facilitating weight reduction without elaborate surgical techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional RYGB procedure is performed, then gastric reduction is achieved, but operative time is excessive and recovery is lengthy

Engineering Contradiction:
Improveoperative time efficiencyVSAvoidsurgical procedure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The surgical procedure is segmented into distinct functional components: the sinusoidal apparatus for tissue engagement, needle passing channels for suture deployment, and standardized pouch creation steps. This segmentation allows each component to be optimized independently and assembled into an efficient overall system, reducing total operative time while maintaining effectiveness

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sinusoidal apparatus is pre-configured with needle passing channels and suture mechanisms before insertion. The pouch geometry is pre-determined by the apparatus design, eliminating the need for complex intraoperative measurements and adjustments, thereby significantly reducing operative time and complexity

Inventive Principle:
Principle #10Preliminary action

2Reliability

If highly invasive RYGB surgery is performed, then gastric bypass is achieved, but patient recovery time and pain are increased

Engineering Contradiction:
Improvesurgical effectivenessVSAvoidtissue damage and recovery burden
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The sinusoidal apparatus engages only the specific portions of stomach tissue required for pouch creation, leaving surrounding tissue undisturbed. The needle passing channels are positioned to create sutures only at critical locations, minimizing overall tissue disruption while maintaining the reliability of the gastric reduction procedure

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The sinusoidal apparatus serves as an intermediary device that facilitates the gastric reduction procedure without requiring direct, extensive surgical manipulation. The apparatus mediates between the surgeon's intent and the tissue manipulation, enabling effective pouch creation with minimal invasive contact, thereby reducing tissue damage and patient suffering

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If complex gastric reduction surgery is performed, then stomach size is reduced, but resource consumption and costs increase

Engineering Contradiction:
Improveprocedure efficiencyVSAvoidsurgical resources required
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The sinusoidal apparatus integrates multiple functions into a single device: tissue engagement, needle passage, suture deployment, and pouch formation. This multi-functionality eliminates the need for multiple separate surgical instruments and steps, reducing resource consumption and procedural complexity while maintaining high productivity

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

Solution Approach 2:

The apparatus design allows for parameter optimization such as sinusoidal wave amplitude, needle channel positioning, and suture tension control. These parameters can be adjusted based on patient-specific requirements, enabling standardized yet adaptable pouch creation that reduces resource waste while maintaining procedural efficiency

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS7896894B2Apparatus for single pass gastric restriction
Publication Date: 2011.03.01 ETHICON ENDO SURGERY INC
  • US7896894B2 patent drawing
  • US7896894B2 patent drawing
  • US7896894B2 patent drawing

AI summary

A gastric reduction apparatus that facilitates the creation of a transoral linear passageway through the stomach includes an elongated body including a proximal end and a distal end. The elongated body is generally sinusoidal shaped with at least one tissue engaging surface oriented such that a needle will pass therethrough. The elongated body also includes at least one needle passing channel respectively formed adjacent the at least one tissue engaging surface. The at least one needle passing channel generally passes through the center of the sinusoidal waveforms defined by the at least one tissue engaging surface such that a needle will pass entirely through stomach tissue contacting the tissue engaging surface of the elongated body. The elongated body further includes a suture passing channel.