Surgical Clip With Compression Spring for Organ Retraction

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Solution Overview

Problem

Current minimally invasive surgical techniques face limitations due to the fixed position of access ports, which restricts retraction in certain directions and requires additional ports, hindering the minimally invasive nature of the procedure, especially for abdominal laparoscopy, as existing anchoring devices either penetrate the tissue or require additional incisions.

Innovation Solution

A clip system with a sleeve-like compression spring and an introducer for minimally invasive surgery, allowing the clip to be anchored to the internal surface of a cavity or organs without additional incisions, using a hook mechanism that can be introduced and repositioned within the abdominal cavity, utilizing mechanical means like barbs or self-retaining clamps for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional ports are created to enable retraction in various directions, then retraction capability is improved, but the minimally invasive nature of the procedure is compromised

Engineering Contradiction:
Improveretraction capabilityVSAvoidinvasive nature
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

A magnet is introduced as an intermediary device that can be placed outside the body to interact with magnetic anchors attached to internal organs. This allows retraction forces to be applied without creating additional incisions or ports, as the magnetic field penetrates the tissue to transmit force from the external magnet to the internal magnetic anchors.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical retraction systems that require physical contact through incisions with a magnetic field-based system. Magnetic anchors with embedded magnets or magnetic materials can be attached to organs and manipulated by external magnets, substituting direct mechanical insertion with field-based interaction that avoids additional tissue penetration.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If retractors are introduced through orifices to attach to organs, then retraction function is achieved, but the ability to anchor to undersurface of cavity wall is lost

Engineering Contradiction:
Improveretraction functionVSAvoidanchoring location flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The magnetic anchor device is designed with multi-functionality to serve multiple purposes: it can anchor to the undersurface of the cavity wall using barbs or adhesives, attach to internal organs via magnetic attraction, and be manipulated by external magnets. This universal design allows the same device to perform anchoring, retraction, and repositioning functions that previously required multiple different devices and incisions.

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

3Ease of operation

If magnetic substances are introduced into the intestine to enable remote manipulation, then remote manipulation capability is improved, but the ability to retract other abdominal organs is lost

Engineering Contradiction:
Improveremote manipulationVSAvoidorgan retraction capability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The magnetic anchor device is designed to be self-anchoring through its own magnetic field interaction. The magnetic anchor contains a magnet that can be attracted to external magnets positioned by the surgeon, allowing the device to hold and retract organs without requiring continuous external manipulation or additional anchoring mechanisms. The device serves itself by maintaining position through magnetic attraction.

Inventive Principle:
Principle #25Self-service

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 retraction of internal organs without additional incisions, allowing for flexible repositioning of the clip within the cavity, thereby enhancing the minimally invasive nature of surgical procedures by providing secure anchoring without the need for extra ports or tissue penetration.

Implementation Method 1

The clip is provided with a sleeve-like enveloping compression spring, which surrounds the jaws of said clip and constrains said jaws to be close to each other.

Methodology Applied
Scientific EffectCompression spring: Spring

Implementation Method 2

A clip system with a sleeve-like compression spring and an introducer for minimally invasive surgery, allowing the clip to be anchored to the internal surface of a cavity or organs without additional incisions, using a hook mechanism that can be introduced and repositioned within the abdominal cavity, utilizing mechanical means like barbs or self-retaining clamps for secure attachment.

Methodology Applied
Scientific EffectMechanical anchoring: Mechanical Force

Data Source

PatentEP2073721B1A clip device and system for assisting surgical procedures
Publication Date: 2018.11.07 VIRTUAL PORTS
  • EP2073721B1 patent drawingFigure 1
  • EP2073721B1 patent drawingFigure 2
  • EP2073721B1 patent drawingFigure 3

AI summary

A clip (600) is provided with a sleeve-like enveloping compression spring (603). The present invention also discloses a system for use during surgical procedure. The system comprises; (a) at least one clip (600); and (b) at least one introducer (800). The present invention also discloses a method for retraction of an internal organ during a surgical procedure. The method comprises steps selected inter alia from (a) obtaining a system; (b) introducing the clip (600) into the abdomen cavity and/or into body organs and/or natural/artificial orifices and/or spaces; (c) opening the clip's jaws (606, 607) via the introducer (800); (d) grabbing tissue; (e) anchoring the clip's hook to the internal wall of the abdominal cavity and/or the body organ and/or the natural/artificial orifices and/or spaces; (f) disconnecting the introducer (800) from the clip (600); and (g) removing the introducer (800) from the abdominal cavity and/or the body organs and/or the natural/artificial orifices and/or spaces.