Surgical Tissue Removal Tool with Movable End Effector

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current surgical devices are inadequate for effectively treating endometriosis due to the varied locations and thicknesses of endometrial tissue growth, requiring improved tools for precise manipulation and removal of endometrial tissue during laparoscopic or endoscopic procedures.

Innovation Solution

A tissue removal tool with a graspable portion, shaft, and end effector configured to lift and cut endometrial tissue from background tissue, featuring a movable end effector that can interface with the tissue, utilize suction or shape memory elements for lifting, and a blade for cutting in various angles relative to the lifting direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surgical devices are used to remove endometrial tissue, then the procedure can be performed, but the treatment effectiveness is inadequate due to the varied locations and thicknesses of endometrial tissue growth

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidadaptability to varied tissue locations and thicknesses
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The end effector is made movable relative to the shaft, allowing it to dynamically adjust its position and orientation to interface with background tissue about the endometrial tissue. This enables the device to adapt to varied tissue locations and thicknesses while maintaining reliable treatment effectiveness.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The end effector is designed with multi-functionality, capable of both lifting and cutting endometrial tissue. The blade can cut in various angles relative to the lifting direction, making the single device versatile enough to handle different tissue configurations and locations effectively.

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

2Adaptability or versatility

If the end effector is made movable to interface with background tissue, then adaptability to varied tissue locations is improved, but device complexity increases

Engineering Contradiction:
Improveinterface capability with background tissueVSAvoidmovability mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is segmented into distinct functional components: a shaft for transmission, a movable end effector for tissue interaction, and a blade for cutting. This segmentation allows the end effector to be independently movable relative to the shaft, providing adaptability while keeping the overall device structure manageable and not excessively complex.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables precise and effective removal of endometrial tissue by lifting and cutting it from the background tissue, reducing pain and improving treatment outcomes for endometriosis, with the tool being adaptable for use in both laparoscopic and open procedures.

Implementation Method 1

The end effector can be configured as a suction port to lift the endometrial tissue by gathering

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

the end effector can be configured as a shape memory element to lift the endometrial tissue by grasping

Methodology Applied
Scientific EffectShape memory: Shape Memory Alloy

Data Source

PatentUS11819244B2Surgical device for treatment of endometriosis
Publication Date: 2023.11.21 GYRUS ACMI INC
  • US11819244B2 patent drawing
  • US11819244B2 patent drawing
  • US11819244B2 patent drawing

AI summary

Surgical instruments and methods are disclosed including a tissue removal tool for treatment of endometrial tissue on a background tissue of a patient. The tissue removal tool can optionally comprise a graspable portion, a shaft and an end effector. The shaft can be coupled to the graspable portion. The shaft can have a proximal portion and a distal portion and can be configured to access an anatomic location of the endometrial tissue. The end effector can be coupled to the distal portion of the shaft. The end effector can be configured to lift the endometrial tissue relative to the background tissue to a lifted position. The end effector can be configured to cut the endometrial tissue from the background tissue with the endometrial tissue in the lifted position.