Dual-Lumen Tissue Resection Instrument for Selective Removal
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Solution Overview
Problem
Current minimally invasive surgical techniques cause trauma and require multiple entry points and foreign compounds, prolonging recovery times and increasing costs, while failing to selectively remove targeted tissues without damaging healthy tissues.
Innovation Solution
A surgical instrument with a dual lumen system that generates a cutting and suction force using a water jet, allowing selective removal of pathologic tissues by adjusting fluid pressure, minimizing trauma and using a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional minimally invasive techniques are used, then multiple entry points and instruments are required to treat tissue, but this increases surgical complexity and trauma to the patient
Solution Approach 1:
The patent combines multiple functions (cutting, suction, and tissue removal) into a single surgical instrument with integrated lumens. The first lumen delivers the fluid jet for cutting while the second lumen provides suction, eliminating the need for multiple separate instruments and entry points while maintaining effective tissue treatment
Solution Approach 2:
The surgical instrument is designed as a multi-functional device that can perform cutting, suction, and tissue removal through a single probe. The adjustable fluid pressure allows the same device to adapt to different tissue types and surgical requirements, providing universal applicability across various soft tissue procedures
2Productivity
If conventional surgical techniques are used, then pathologic tissue can be removed, but healthy tissue is also damaged
Solution Approach 1:
The fluid jet is delivered through a precisely positioned nozzle at the distal end of the first lumen, concentrating the cutting action exactly where needed. The suction aperture in the second lumen is positioned to selectively aspirate disrupted tissue while the adjustable pressure allows differentiation between pathologic and healthy tissue based on their mechanical properties
Solution Approach 2:
The fluid pressure is made adjustable to change the cutting and suction forces according to the specific surgical needs and tissue types being treated. This parameter control allows the surgeon to optimize the force level to remove pathologic tissue while minimizing damage to adjacent healthy structures
3Reliability
If multiple instruments are used for tissue removal, then comprehensive treatment is achieved, but recovery time and costs increase
Solution Approach 1:
By integrating cutting and suction functions into a single instrument, the surgical procedure is simplified and can be completed more efficiently through fewer entry points and less surgical manipulation, directly reducing both surgical time and patient recovery time while maintaining complete tissue treatment
Solution Approach 2:
The instrument performs both cutting and suction through a single probe insertion, eliminating the need for additional instruments or assistant maneuvers. The suction function automatically removes disrupted tissue as it is being cut, providing a self-contained treatment process that reduces overall procedural complexity and time
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
The instrument effectively removes targeted tissues with minimal damage to healthy tissues, reducing recovery time and costs by using a single device with adjustable cutting and suction forces.
Implementation Method 1
a nozzle formed in a side wall proximate to the closed distal terminal end that is configured to enable a jet of fluid to exit the nozzle
Implementation Method 2
The jet of fluid can selectively cut tissue and can provide a suction force to remove and/or evacuate tissue
Implementation Method 3
The cutting and suction force is created by pumping a fluid through a nozzle of a first lumen of the surgical instrument into an aperture of a second lumen
Data Source
AI summary
This disclosure describes techniques and devices for improvement of surgical outcomes for tissue removal surgeries. A surgical instrument with adjustable and selective resection is described. The disclosed devices and methods allow selective tissue removal.