Surgical Anchor Delivery System with Multi-Anchor Shaft
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Solution Overview
Problem
Current surgical anchor delivery systems are inefficient and costly due to the need for multiple disposable delivery devices when two or more anchors are required, with the bulk of the cost attributed to the delivery device rather than the anchors themselves.
Innovation Solution
A surgical anchor delivery system featuring a single delivery device with an elongate shaft and handle, capable of advancing multiple surgical anchors distally along the shaft, allowing for the deployment of two, three, four, or more anchors in series, with features such as lumens for slidably mounting anchors and a mechanism to prevent rotation and snagging of sutures, enabling efficient and cost-effective deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple single-use disposable delivery devices are used to deploy two or more anchors, then each anchor can be delivered, but the cost and procedural efficiency deteriorate due to the bulk of costs being attributable to the disposable delivery devices
Solution Approach 1:
The patent combines multiple single-use delivery devices into a single reusable delivery device that can deliver multiple anchors. The delivery device includes a shaft with a lumen that can accommodate multiple anchors in series, allowing them to be delivered through one device rather than requiring separate devices for each anchor.
Solution Approach 2:
The delivery device is designed with multi-functionality to deliver multiple anchors of different types (fenestrated or non-fenestrated, various materials like bioresorbable or non-bioresorbable) through a single device. The device can be reused across multiple procedures, serving universal purposes rather than being single-use.
2Reliability
If multiple single-use disposable delivery devices are used, then each anchor can be delivered, but procedural efficiency deteriorates due to the need to use several delivery devices
Solution Approach 1:
The patent combines multiple single-use delivery devices into a single reusable delivery device that can deliver multiple anchors. The delivery device includes a shaft with a lumen that can accommodate multiple anchors in series, allowing them to be delivered through one device rather than requiring separate devices for each anchor.
Solution Approach 2:
The multiple anchors are pre-loaded into the delivery device in series before the surgical procedure. This preliminary loading eliminates the need to prepare and attach separate delivery devices during the procedure, improving procedural efficiency by having all anchors ready for immediate deployment.
3Reliability
If anchors are loaded with suture, then the anchor can be secured to tissue, but the suture may snag on the delivery device during deployment
Solution Approach 1:
The patent extracts the suture from the anchor body and routes it externally through the delivery device. The suture is attached to the anchor and passes through the delivery device shaft lumen or along the exterior of the shaft, then exits at the handle region. This separation prevents the suture from snagging on the delivery device during anchor deployment while still allowing the anchor to be securely attached to tissue.
Data Source
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AI summary
The present invention relates to a surgical anchor delivery system (10) including a delivery device (11) having a shaft (14) and a handle (13), an advancer (15) for advancing a surgical anchor (12) distally along the shaft (14); and a plurality of surgical anchors (12) loaded upon the shaft (14).