Single Puncture Sheath for Retrograde Arterial Venous Blood Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current catheter delivery systems for treating occluded blood vessels often require multiple punctures and may not effectively address compromised vascular flow to the eye, leading to inadequate treatment of conditions like Age Related Macular Degeneration and Glaucoma.
Innovation Solution
A single percutaneous needle puncture method that allows access to both an artery and a vein, using a sheath or catheter to establish reverse blood flow from the common carotid artery into the internal jugular vein, facilitating the delivery of therapeutic devices and improving blood flow to the eye by creating a fluid flow pathway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple punctures are performed to access artery and vein separately, then access to both vessels is achieved, but trauma to surrounding tissue increases and procedure complexity increases
Solution Approach 1:
The patent combines two separate puncture procedures into a single puncture event. A single needle puncture simultaneously accesses both the artery and vein, eliminating the need for separate punctures. This merging of access routes reduces procedural steps and minimizes trauma to surrounding tissues while maintaining the ability to treat both vessels.
Solution Approach 2:
The single puncture system is designed to serve multiple functions: it simultaneously provides access to both arterial and venous systems, allows for selective catheterization of either vessel, and enables delivery of therapeutic devices to both locations. This multi-functional approach replaces what would traditionally require separate access procedures.
2Reliability
If traditional catheter delivery systems are used, then treatment of occluded vessels is possible, but the procedure requires multiple punctures and causes increased tissue trauma
Solution Approach 1:
The system merges multiple access routes into a single puncture pathway. The catheter assembly is designed to navigate from a single puncture site to both arterial and venous targets, reducing the number of skin punctures and procedural steps while maintaining reliable access to occluded vessels for treatment delivery.
3Productivity
If reverse blood flow is established from artery to vein, then blood flow to the eye is improved, but the procedure requires complex device configuration
Solution Approach 1:
The system establishes reverse blood flow by creating an artificial connection that allows blood to flow from the artery into the vein, opposite to the normal physiological direction. This inversion of flow direction is achieved through the catheter configuration and pressure gradient management, enabling improved ocular perfusion by redirecting arterial blood through the venous system to reach the eye.
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
This method enables effective treatment of occluded blood vessels with reduced trauma and improved blood flow to the eye, enhancing oxygen and nutrient delivery, thereby addressing compromised vascular flow-related diseases.
Implementation Method 1
establish reverse blood flow from the common carotid artery into the internal jugular vein
Data Source
AI summary
A method of inducing retrograde blood flow may include extending a sheath through opposite walls of one of an artery and a vein of a subject and through a wall of the other of the artery and the vein such that a distal end of the sheath may be positioned within one of the artery and the vein. The method may include inducing retrograde blood flow in the artery and delivering the induced retrograde blood flow into the vein of the subject via the sheath.