Dual Entry Port Vascular Access Device
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Solution Overview
Problem
There is no single access device capable of simultaneously entering two large-bore devices into a single vascular graft, which complicates medical procedures.
Innovation Solution
A dual entry port access device with self-sealing valves, featuring a common arm and two proximal arms with lumens, allowing for simultaneous entry of two large-bore devices into a vascular graft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a Y-shaped vascular graft is used to allow two large-bore devices into a single vascular graft, then the capability to accommodate two devices is achieved, but the procedural complexity and difficulty of use increase for medical professionals
Solution Approach 1:
The access device serves as an intermediary component between the two large-bore devices and the vascular graft. It includes a body with a common arm and two proximal arms, each with lumens that receive the devices, and a distal end that couples to the graft. This mediator structure simplifies the procedure by providing a single access point that inherently guides and organizes both devices, eliminating the need for complex Y-shaped graft configurations and reducing procedural complexity for medical professionals
2Ease of operation
If a single access device with two entry ports is designed, then the ease of deployment and withdrawal of devices is improved, but the device complexity increases
Solution Approach 1:
The access device is segmented into distinct functional components: a body portion, a common arm with a common lumen, and two proximal arms with respective lumens. Each segment has a specific function - the proximal arms receive individual devices, the common arm consolidates them, and the distal end interfaces with the graft. This segmentation allows for straightforward deployment where devices are independently inserted through their respective proximal arms and guided through the common lumen to the graft, facilitating easy withdrawal without requiring complex coordinated manipulation of a monolithic structure
Solution Approach 2:
The access device is designed as a multi-functional universal access system that can accommodate two different large-bore devices simultaneously. The body structure with multiple lumens provides universal compatibility for various device types (such as cannulas or other medical devices), while the self-sealing valves provide universal hemostatic function. This multi-functionality is achieved through a relatively simple Y-shaped geometry rather than a complex multi-component system, maintaining ease of deployment and withdrawal
3Reliability
If self-sealing valves are included at each entry port, then hemostasis control is improved, but the manufacturing complexity increases
Solution Approach 1:
The self-sealing valves are integrated directly into the proximal ends of the proximal arms during the manufacturing process, merging the hemostatic function with the structural components. Rather than being separate assemblies that require complex installation procedures, the valves are incorporated as integral parts of the access device body, simplifying the manufacturing to a single integrated production process while ensuring reliable hemostasis control at each entry port
Data Source
AI summary
Disclosed is an access device for vascular grafts. The access device may allow two large-bore medical devices to be inserted simultaneously. The access device may include a body defining a common arm, a first proximal arm, and a second proximal arm. The common arm may include a common lumen extending from a distal end of the common arm to a proximal end of the common arm. The first arm may include a first lumen extending from a proximal end of the first arm to the common lumen. The second arm may include a second lumen extending from a proximal end of the second arm to the common lumen. The access device may include a plurality of hemostasis valves. A first hemostasis valve may be disposed at the proximal end of the first proximal arm. A second hemostasis valve may be disposed at the proximal end of the second proximal arm.