Endoluminal Anastomosis Guide Wire and Anchoring Ring
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Solution Overview
Problem
Current surgical methods for anastomosis in the digestive tube are challenging due to the lack of effective instruments for guiding and controlling tissue connection through endoluminal access, making it difficult to perform procedures like gastrojejunostomy and jejunojejunostomy.
Innovation Solution
A device comprising a main guide wire and positioning devices, such as a circular stapler and anchoring ring, allows for endoluminal access by forming an open ring to draw tissue portions together, enabling the creation of anastomosis through natural orifices, using a guide wire to position and lock anastomotic devices for tissue connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If open or laparoscopic surgical techniques are used for anastomosis, then the anastomosis can be created, but the procedure complexity and patient recovery time increase
Solution Approach 1:
The device employs nested components where the positioning device is introduced through the stapler, and the guide wire runs through channels in both devices. The anchoring ring is deployed from the positioning device to engage tissue. This nested arrangement allows multiple functions to be integrated in a compact configuration that can be delivered through endoluminal access, reducing surgical complexity while maintaining anastomosis reliability
Solution Approach 2:
The guide wire acts as an intermediary element that runs through channels in the stapler and positioning device, providing a track for device deployment and tissue engagement. The anchoring ring serves as an intermediary structure that engages the tissue wall to secure the anastomosis. These intermediary elements enable the complex anastomosis procedure to be performed through simpler endoluminal access
2Loss of time
If endoluminal access is used for anastomosis, then patient recovery time is reduced, but the ability to guide and control tissue connection is insufficient
Solution Approach 1:
The invention replaces the need for complex external mechanical manipulation with an integrated system where the guide wire channels and anchoring ring provide automatic alignment and control. The radiopaque markings enable visual guidance instead of complex mechanical positioning, making endoluminal access feasible while maintaining adequate control for tissue connection
Solution Approach 2:
The positioning device with its anchoring ring is designed to self-align and secure to the tissue wall automatically when deployed through the guide wire. The radiopaque markings on the guide wire and devices enable self-guidance during the procedure. This self-service capability simplifies the operator's task while maintaining control, making endoluminal access practical
3Ease of operation
If traditional surgical methods are used, then tissue connection control is adequate, but patient recovery time increases
Solution Approach 1:
The surgical procedure is segmented into distinct functional components: the stapler for initial positioning, the positioning device for precise tissue alignment, the anchoring ring for secure attachment, and the guide wire for coordination. This segmentation allows each component to perform its specific function efficiently through endoluminal access, achieving traditional-level control with reduced recovery time
Data Source
AI summary
A device for drawing tissues together and creating an anastomosis comprises a main guide wire (66, 86) suitable to receive and draw anastomotic devices (10; 16; 24) in order to draw together portions (A; B) of tissues to be joined by means of anastomosis. The main guide wire (66, 86) is suitable to be shaped like an open ring crossing the portions (A, A′; B, B′) of tissues to be joined by means of anastomosis (66, 86), wherein the ends of the main guide wire (66, 86) are different and distinguishable from each other. The main guide wire (66, 86) has a tubular or hollow structure suitable to house at least one needle for a push or radiofrequency perforation of the tissues.