Bioabsorbable Vessel Closure Device
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Solution Overview
Problem
Current vessel closure methods after catheterization procedures require prolonged bed rest, are time-consuming, costly, and pose risks due to external pressure application for hemostasis, especially for smaller body lumen openings.
Innovation Solution
A closure device comprising an elongate member with an anchor and cap member, made from bioabsorbable materials, that deploys within the body lumen to securely close the opening by anchoring against the vessel wall and applying pressure, potentially incorporating pharmaceutical agents for enhanced tissue interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external pressure is applied to the puncture site for hemostasis, then bleeding is controlled, but the patient must remain bedridden for a substantial period and the procedure becomes time-consuming
Solution Approach 1:
The closure device is divided into multiple functional components: an anchor member with engagement elements for securing to the vessel wall, an elongate member for delivery and positioning, and a cap member for sealing. This segmentation allows each component to perform its specific function efficiently, enabling rapid closure without prolonged bed rest
Solution Approach 2:
The closure device acts as an intermediary mechanism between the puncture site and the external pressure application. Instead of relying solely on external pressure and natural clotting, the device provides internal structural support and sealing at the puncture site, enabling hemostasis without prolonged immobilization
2Reliability
If external pressure is applied for hemostasis, then bleeding is controlled, but the risk of hematoma exists from bleeding before hemostasis occurs
Solution Approach 1:
The closure device is deployed into the vessel at the puncture site before complete hemostasis occurs. The anchor member secures to the vessel wall and the cap member seals the opening proactively, preventing blood leakage and hematoma formation during the clotting process rather than reacting after bleeding has already occurred
3Reliability
If traditional external pressure method is used for closure, then hemostasis is achieved, but the procedure is costly requiring as much as an hour of physician or nurse time
Solution Approach 1:
The closure device is designed for self-deployment and self-sealing functionality. Once positioned at the puncture site, the anchor member automatically engages with the vessel wall and the cap member seals the opening without requiring continuous manual manipulation or monitoring by medical staff, enabling rapid procedure completion
Solution Approach 2:
The invention replaces the manual mechanical system of external pressure application and monitoring with a self-actuating mechanical closure device that automatically secures and seals the puncture site, reducing the need for prolonged physician or nurse involvement
Data Source
AI summary
The present disclosure includes vessel closure devices, systems, and methods. A closure device configured to close an opening in a body lumen may include an elongate member having a distal end and a proximal end. An anchor member may be disposed on the elongate member proximate the distal end of the elongate member. A cap member may also be disposed on the elongate member a distance from the distal end of the elongate member. The anchor member and the cap member cooperate to close the opening in the body lumen.