Insufflable Prosthesis for Sutureless Anastomosis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current anastomotic devices for vascular procedures often require clamping and suturing, which can cause trauma, restrict the anastomosis area, and lead to complications such as thrombosis and bleeding, and are limited in their applicability and flexibility, especially for calcified or friable tissues.
Innovation Solution
An insufflable, elastic or non-elastic prosthetic device made of biocompatible materials like PTFE or Gor-Tex, which can be inflated to varying dimensions to accommodate different grafts and organs, allowing for sutureless and clamping-free side-to-side, end-to-end, and end-to-side anastomosis, eliminating foreign body contact within the anastomosis site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clamping and suturing methods are used for anastomosis, then secure connection is achieved, but tissue trauma and risk of thrombosis increase
Solution Approach 1:
The invention extracts and removes the harmful clamping and suturing elements from the anastomosis procedure. The prosthesis is designed to be inserted inside the graft vessel and everted to cover it, eliminating the need for external clamps and sutures that cause tissue trauma. The connection is secured through the everted graft covering the prosthesis and optional adhesive application, rather than through traumatic clamping or suturing methods.
Solution Approach 2:
The prosthesis utilizes a flexible tubular structure that can be inserted and everted over the graft vessel. This flexible shell approach allows the prosthesis to conform to the vessel geometry and secure the anastomosis through the everted graft coverage, avoiding rigid clamps and sutures that cause tissue damage.
2Reliability
If traditional anastomotic devices are used, then connection is achieved, but the anastomosis area is restricted
Solution Approach 1:
The invention transitions from a lateral or external connection approach to an internal insertion and eversion approach. The prosthesis is inserted inside the graft vessel lumen and everted outward to cover the entire graft, creating a three-dimensional coverage that expands the functional anastomosis area beyond what traditional side-to-side or end-to-end connections provide.
Solution Approach 2:
The prosthesis is nested inside the graft vessel during insertion, then everted to cover the graft. This nested approach allows the smaller prosthesis to be inserted through the vessel lumen and then expanded outward to provide comprehensive coverage, maximizing the anastomosis area without requiring large external devices.
3Reliability
If multiple anastomosis procedures are performed separately, then each connection is secure, but surgical time increases
Solution Approach 1:
The invention merges multiple anastomosis functions into a single prosthesis device. The prosthesis can accommodate multiple graft vessels simultaneously through its tubular structure and everted configuration, allowing multiple connections to be established in one procedure rather than performing separate anastomosis operations for each graft.
Solution Approach 2:
The prosthesis is designed as a universal device that can perform multiple anastomosis functions. It can accommodate different graft vessel sizes and configurations through its adaptable tubular structure and everted coverage mechanism, enabling a single device to replace multiple specialized anastomotic devices and procedures.
4Manufacturing precision
If rigid prosthesis with preset dimensions are used, then manufacturing precision is achieved, but adaptability to different graft sizes is limited
Solution Approach 1:
The invention transitions from rigid, fixed-dimension prostheses to dynamic, adaptable structures. The prosthesis can be compressed to a small size for insertion, then expanded upon eversion to accommodate different graft vessel diameters. This dynamic behavior allows a single prosthesis design to adapt to various graft sizes while maintaining manufacturing precision through controlled expansion characteristics.
Solution Approach 2:
The prosthesis utilizes parameter changes in its dimensional characteristics. It is manufactured with precise dimensions in a compressed state for insertion, then undergoes parameter change through expansion upon eversion to match the target graft vessel diameter. This allows a single manufactured component to achieve size adaptation through controlled physical transformation.
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 device enables secure, wide, and multiple anastomosis without clamping or suturing, reducing the risk of thrombosis and bleeding, and can accommodate various graft and organ sizes, improving surgical efficiency and patient outcomes by minimizing foreign body reactions and the need for toxic contrast agents.
Implementation Method 1
the prosthesis is insufflated, as a balloon, up to a preset caliber (non elastic prosthesis) and/or desired (elastic and insufflable prosthesis, having dimensions variable to insufflation), in order to maintain graft wall united and tight in relation to organ wall
Implementation Method 2
insufflable with a fluid that may be or not polymerizable
Data Source
AI summary
An insufflable prosthesis is provided, that is radiopaque or with a circumferential radiopaque mark, for sutureless and non clamping side-to-side, end-to-end and end-to-side anastomosis, or fast clamping and sutureless wherein vessel graft or any other is inserted or not (whether externally covered or not if using grafts), in the lumen of the prosthesis comprised by an insufflable balloon, whether distensible or not and after being covered by graft, the balloon can be filled with polymerizable fluid, like silicon or cyanoacrylate glue, whether radiopaque or not, by a syringe having unidirectional valve to a needed caliber in order to keep the graft wall jointed and tight in relation to the organ which performs the anastomosis. The insufflable balloon, elastic and distensible, or non elastic and having preset dimensions also comprises non elastic punctiform bars inside that are responsible for keeping constant the distance between the elastic balloon walls.