Endoscopic Cannulation Apparatus with Fluid Stasis Assembly
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Solution Overview
Problem
Current surgical methods for heart and other body part procedures face challenges such as the introduction of embolic materials and excessive blood loss due to the need for large incisions and cardiopulmonary bypass, which increase risks and recovery time.
Innovation Solution
The development of a minimally invasive endoscopic cannulation apparatus that allows remote coring and cannulation of body parts, using a fluid stasis assembly and coring assembly with a trocar tip and occlusive device to prevent fluid and gas flow, and a coring assembly with a cutting tool to core and remove tissue while minimizing blood loss and emboli risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If large incisions and cardiopulmonary bypass are used for heart surgery, then access to the heart is improved, but blood loss and risk of emboli increase
Solution Approach 1:
The surgical procedure is divided into separate stages: first creating a small access incision, then inserting a guide catheter, followed by remote coring and cannulation. This segmentation allows the heart to be accessed through a minimal incision while maintaining surgical control and reducing blood loss compared to traditional open-heart surgery requiring large sternotomy incisions.
Solution Approach 2:
A guide catheter is introduced as an intermediary device through the small access incision to deliver the coring device and cannula to the heart. This intermediary allows remote manipulation and positioning of cutting and cannulation tools without requiring direct surgical exposure of the heart, thereby minimizing incision size and associated blood loss.
2Loss of substance
If remote coring and cannulation are performed through small incisions, then blood loss is reduced, but the complexity of the procedure increases
Solution Approach 1:
The coring device, cannula, and associated components are nested within or delivered through the guide catheter. The coring device can be advanced through the guide catheter, and the cannula is subsequently positioned through the same access pathway. This nesting arrangement consolidates multiple functions into a single access site, reducing overall procedural complexity despite the sophisticated nature of the remote coring and cannulation techniques.
3Measurement precision
If traditional open-heart surgery is used, then direct visualization and control are improved, but recovery time and cost increase
Solution Approach 1:
Direct mechanical visualization through large incisions and surgical exposure is replaced with remote mechanical manipulation through catheters and guide wires. The surgical tools are delivered and controlled remotely through the guide catheter system, substituting the traditional mechanical approach of direct surgical exposure with a minimally invasive catheter-based system that achieves similar functional outcomes with smaller incisions and faster recovery.
Data Source
AI summary
A method and apparatus for remotely cannulating a body part are disclosed. The apparatus is an endoscopic cannulation apparatus having a fluid stasis assembly and a coring assembly. The fluid stasis assembly allows for the penetration of the body part and deployment of an occlusive device to prevent the escape of fluid during the coring and cannulation of the body part. The cannulation assembly allows for the coring of the body part without the introduction of air bubbles or other embolic materials into the patient. The method of the invention provides for the remote coring and cannulation of a body part such as a heart, blood vessels, the stomach, intestines, and other body parts with a sealed apparatus that may be de-aired to lessen the risk of the introduction of emboli into a system.