Sensor-Guided Surgical Tissue Resection for Surface Breach Prevention
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Solution Overview
Problem
Existing minimally invasive surgical procedures face challenges in removing tissue or organs without dispersing potentially malignant tissue, particularly in hysterectomies, as current devices lack the ability to monitor the position of the cutting device relative to the organ surface, risking tissue dispersion during resection.
Innovation Solution
A system with a probe equipped with a cutting member and sensors, such as capacitance, impedance, or ultrasound mechanisms, to detect proximity to the organ surface, generating alerts and controlling the cutting device to prevent surface breach, combined with negative pressure for tissue extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cutting device is used to remove tissue from the interior of an organ, then tissue resection efficiency is improved, but the risk of breaching the organ surface and dispersing malignant tissue increases
Solution Approach 1:
The sensor is positioned ahead of the cutting member to detect the organ surface before the cutter reaches it. This preliminary detection allows the system to warn the operator or automatically stop the cutting action before the surface is breached, preventing malignant tissue dispersion while maintaining efficient resection of internal tissue.
Solution Approach 2:
The sensor continuously monitors the distance between the cutting member and the organ surface, providing real-time feedback to the operator through visual or audible signals. This feedback mechanism enables the operator to adjust the cutting depth dynamically, ensuring complete resection of internal tissue while maintaining a safety margin to prevent surface breach.
2Productivity
If the cutting device advances through the organ surface to remove tissue, then complete tissue removal is achieved, but containment of potentially malignant tissue is compromised
Solution Approach 1:
The sensor detects the organ surface position before the cutting member reaches it, enabling the system to establish a controlled stopping point. This preliminary detection ensures that the cutting action is terminated before breaching the surface, maintaining tissue containment while achieving complete removal of internal tissue.
Solution Approach 2:
The sensor acts as an intermediary between the cutting device and the organ surface, providing a safety buffer by detecting surface proximity. This intermediary mechanism allows the cutting member to operate freely within the organ interior while the sensor monitors and prevents surface penetration, ensuring both complete tissue removal and malignant tissue containment.
3Reliability
If sensors are added to monitor cutting device position, then surface breach prevention is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical position monitoring systems with simpler sensor-based detection. Instead of using mechanical stops, guides, or complex linkages to control cutting depth, the invention uses electromagnetic or optical sensors to detect surface proximity, significantly reducing mechanical complexity while improving reliability.
Solution Approach 2:
The sensor serves as a lightweight intermediary that provides surface detection functionality without adding significant mechanical complexity. By using a non-contact or minimal-contact sensing mechanism, the system achieves reliable surface breach prevention while maintaining a simple, minimally invasive device structure suitable for laparoscopic use.
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 resection and removal of tissue within the organ without perforating the surface, ensuring containment of potentially malignant tissue, reducing the risk of dispersion during procedures like laparoscopic hysterectomy.
Implementation Method 1
The sensor can comprise a mechanism selected from a group consisting of: a capacitance sensing mechanism
Implementation Method 2
The sensor can comprise a mechanism selected from a group consisting of: an impedance sensing mechanism
Implementation Method 3
The sensor can comprise a mechanism selected from a group consisting of: an optical sensing mechanism
Implementation Method 4
The sensor can comprise a mechanism selected from a group consisting of: an ultrasound mechanism
Implementation Method 5
a negative pressure source in fluid communication with the probe and cutting mechanism, where the negative pressure source extracts resected tissue through a passageway in the probe
Data Source
AI summary
Systems and devices for resecting and removing tissue or organs from the interior of a patient's body, in a minimally invasive laparoscopic procedure while preventing any dispersion of potentially malignant tissue during the resection process.