Anastomotic Ring Device Guide Wire Alignment
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Solution Overview
Problem
Current surgical methods for endoluminal and transluminal anastomosis, such as gastro-jejunostomy, are invasive and lack adequate control and instrumentation guidance, leading to high post-operative complications and requiring extensive surgical skill, limiting their reliability.
Innovation Solution
A surgical instrumentation kit that uses a guide wire loop and anastomotic ring device with snap-connectable rings, assisted by a combination of endoscopic and laparoscopic techniques, to perform anastomosis with improved precision and reduced invasiveness, allowing for better alignment and connection of tissue portions without relying heavily on surgeon expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional open surgery or laparoscopic techniques are used for anastomosis, then surgical control and precision are improved, but invasiveness and device complexity increase
Solution Approach 1:
The surgical system is divided into separate functional modules: an endoscope for visualization, a guide wire for navigation, and an anastomotic ring device for the actual connection. This segmentation allows each component to be optimized independently while reducing overall system complexity compared to traditional laparoscopic approaches that require complex robotic or mechanical systems.
Solution Approach 2:
A guide wire acts as an intermediary element that connects the external control system to the internal anastomotic site. The guide wire provides a physical pathway for delivering the anastomotic ring device and enables precise positioning without requiring complex imaging guidance or robotic manipulation systems.
2Object-affected harmful factors
If pure endoluminal or endoscopic methods are used for anastomosis, then invasiveness is reduced, but surgical guidance and control capability deteriorate
Solution Approach 1:
The system merges endoscopic visualization with external laparoscopic control through the guide wire mechanism. The endoscope provides internal visualization while the guide wire allows external manipulation and positioning, combining the advantages of both approaches in a hybrid minimally invasive procedure.
Solution Approach 2:
Complex mechanical manipulation systems are replaced with a simpler guide wire-based delivery mechanism. The anastomotic ring device is delivered through the guide wire rather than requiring complex mechanical deployment systems, reducing the skill barrier while maintaining surgical control.
3Adaptability or versatility
If pure endoscopical approaches are used for anastomosis, then procedure accessibility is improved, but reliability and consistency deteriorate due to dependency on surgeon skill
Solution Approach 1:
The anastomotic ring device is designed to self-align and self-connect once delivered to the target site. The complementary shapes of the proximal and distal rings automatically guide proper orientation and connection, reducing dependency on surgeon skill for precise alignment while maintaining procedural reliability.
Solution Approach 2:
The system changes the critical parameters from surgeon skill-dependent manual manipulation to standardized device geometry and delivery positioning. By controlling the guide wire placement and ring delivery parameters, the procedure becomes more consistent and reliable across different surgeon skill levels.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An instrumentation for performing an endoluminal or transluminal anastomosis, comprises an anastomotic ring device including a proximal ring (5) having two guide wire seats (22) adapted to slidably receive two guide wires (1, 2) and a distal ring (6) having two guide wire seats (25) adapted to slidably receive the two guide wires (1, 2), the proximal ring 5 and the distal ring 6 being snap-connectable to each other, a surgical probe (7) comprising an elongate insertion shaft (30) and a probe head (32) adapted to be endoluminally advanced to a proximal tissue portion (3), the insertion shaft (30) defining guide wire canals (8, 9) extending into two guide wire exit openings (31) defined in the probe head (32) and adapted to deliver the distal ends (1", 2") of said guide wires (1, 2) to said proximal tissue portion (3). The distance between the two guide wire exit openings (31) of the probe (7) is substantially equal to the distance between the two guide wire seats (22) of the proximal ring (5) and to the distance between the two guide wire seats (25) of the distal ring (6).