Vascular Puncture Closure Device with Adjustable Suture Anchoring
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Solution Overview
Problem
Traditional methods for closing vascular punctures after catheterization procedures are time-consuming, require patient immobilization, and lack operator control and flexibility, posing risks such as hematoma from bleeding before hemostasis.
Innovation Solution
A vessel closure device with a guide member, needle guides, and an angle adjustment member, along with suture securing devices, allows for precise deployment and anchoring of sutures to efficiently close punctures, accommodating varying vessel wall thicknesses and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional external pressure method is used for puncture site closure, then hemostasis is achieved, but patient must remain bedridden for substantial period and procedure is time-consuming
Solution Approach 1:
The closure device performs preliminary actions by deploying sutures and anchors through the vessel wall before final closure, preparing the tissue structures in advance so that hemostasis can be achieved rapidly without requiring prolonged patient immobilization or bedrest
2Productivity
If traditional external pressure method is used, then hemostasis is achieved, but procedure requires substantial physician time and is expensive
Solution Approach 1:
The closure device enables self-service by providing operator-controlled mechanisms that automatically deploy sutures, position anchors, and secure the puncture site without requiring continuous physician intervention or manual pressure application, thereby reducing both physician time and procedural cost
3Ease of operation
If traditional closure systems are used, then puncture site closure is achieved, but operator control and flexibility are limited leading to improper closure
Solution Approach 1:
The closure device implements dynamics by providing operator-controlled adjustable mechanisms that allow real-time modification of suture deployment, anchor positioning, and tension application, enabling the operator to adapt to varying vessel wall conditions and achieve reliable closure without improper sealing
4Reliability
If traditional closure methods are used, then puncture site is closed, but risk of hematoma exists from bleeding before hemostasis
Solution Approach 1:
The closure device performs preliminary action by deploying sutures and anchors through the vessel wall before retracting the needle, establishing mechanical containment of the puncture site in advance, which prevents bleeding and hematoma formation during the critical period before hemostasis is fully achieved
Data Source
AI summary
A method for closing a puncture in tissue that includes advancing a guide member into proximity with the tissue, the guide member having a needle guide, positioning a distal end of the guide member with the needle guide toward the tissue to present an opening of the needle guide toward the tissue the needle guide cooperating with a suture securing device that is slidably coupled to the guide member and a suture attached to the suture securing device, deploying the suture securing device, the suture securing device comprising a body with an anchor point for the suture and features that allow the suture securing device to pierce the tissue and resist retraction through the tissue, and establishing tension in the suture to move the suture securing device toward another suture securing device to thereby close the puncture in the tissue.