Suture Anchor Closure Device for Hemostasis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for closing tissue openings, such as punctures in vascular procedures, are time-consuming, expensive, and require patient immobilization, with limited control and flexibility for operators, and a risk of hematoma from bleeding before hemostasis occurs.
Innovation Solution
A closure device comprising a needle actuation handle, a hollow needle with a slot for a suture anchor, and a suture anchor with legs that extend transversely to the suture, allowing for efficient deployment and anchoring of sutures to close tissue openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external pressure is applied to the puncture site until clotting and wound sealing occur, then hemostasis is achieved, but the patient must remain bedridden for a substantial period and the procedure is time-consuming
Solution Approach 1:
The suture anchor is deployed in advance through the needle before needle removal, establishing mechanical closure of the tissue opening before hemostasis needs to occur. This preliminary anchoring action eliminates the need for prolonged external pressure and patient immobilization, as the suture anchor provides immediate structural closure.
Solution Approach 2:
The suture anchor acts as an intermediary element that bridges the tissue edges of the puncture site. By physically connecting the tissue margins through the anchor and suture, the device provides mechanical closure that replaces the need for prolonged external pressure application, thereby reducing procedure time and patient immobilization requirements.
2Reliability
If traditional closure methods are used, then hemostasis is achieved, but the operator has limited control and flexibility leading to improper or undesirable closure
Solution Approach 1:
The needle assembly is designed to be selectively movable between advanced and retracted positions, and the suture anchor is selectively releasable from the needle. This dynamic configuration allows the operator to control the timing and positioning of suture anchor deployment, providing flexibility to adjust to different tissue conditions and achieve proper closure according to specific procedural requirements.
Solution Approach 2:
The device allows the operator to control the position of the needle and suture anchor deployment timing. By adjusting when and where the suture anchor is released from the needle, the operator can optimize the closure configuration for different tissue types and puncture locations, enhancing control over the closure outcome.
3Reliability
If external pressure is applied for hemostasis, then bleeding is controlled, but there is a risk of hematoma from bleeding before hemostasis occurs
Solution Approach 1:
The suture anchor is deployed through the needle before needle removal, establishing mechanical closure of the tissue opening in advance. This preliminary structural closure prevents blood leakage during the critical period when the needle is being removed and external pressure is initially applied, thereby reducing the risk of hematoma formation while maintaining effective bleeding control.
Data Source
AI summary
A closure system for closing an opening in tissue, the closure system including a closure device and a knot replacement device configured to position a suture lock on a suture. The closure device includes a housing, a needle actuation handle cooperating with the housing, a first hollow needle selectively movable by the needle actuation handle and operatively cooperating with a suture anchor frictionally engaged with a slot and a lumen of the first hollow needle and coupled to a suture. A portion of the suture anchor rests along an outer surface of the first hollow needle as the first hollow needle is advanced through tissue adjacent the opening.