Hemostatic Applicator Release Mechanism for Stable Wound Contact
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Solution Overview
Problem
Existing hemostatic agents are inefficiently applied during surgical procedures, leading to potential dislodgement and re-bleeding due to manual placement and maintenance issues, especially in laparoscopic and endoscopic surgeries where visualization and access are limited.
Innovation Solution
A hemostatic agent applicator with a handle and actuators that allow precise delivery and release of hemostatic components, ensuring accurate placement and sustained pressure on the wound, featuring a delivery component that can be attached to the wound and released using actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual application of hemostatic agents is used, then the procedure is simple and requires minimal equipment, but the directionality and accuracy of placement deteriorates and maintenance of position over bleeding tissue becomes difficult
Solution Approach 1:
A delivery device acts as an intermediary between the surgeon and the hemostatic agent, providing a structured platform that ensures accurate placement. The device includes a delivery component with a base and protrusions that interface with the tissue, allowing precise positioning while the surgeon maintains control through the handle.
Solution Approach 2:
The delivery device is segmented into distinct functional components: a handle for control, a delivery component for placement, and the hemostatic agent itself. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity.
2Ease of operation
If manual pressure is applied to maintain hemostatic agent position, then direct control is possible, but dislodgement occurs when pressure is released leading to re-bleeding
Solution Approach 1:
The delivery component is designed to maintain its own position on the tissue through geometric interlocking features. The protrusions engage with corresponding features on the tissue or underlying structures, allowing the device to self-maintain position without continuous manual pressure from the surgeon.
Solution Approach 2:
The device transitions from a controlled state during application to a self-sustaining state after deployment. The mechanical features are designed to engage and lock into position, providing dynamic stability that maintains the hemostatic agent in place throughout the clotting process.
3Productivity
If hemostatic agents are applied without confinement to target tissue, then application is faster, but waste occurs and ineffective positioning leads to failure to control bleeding
Solution Approach 1:
The delivery component is designed with specific geometric features including a base and protrusions that concentrate the hemostatic agent precisely at the target site. This localized delivery ensures the agent is confined to the bleeding area, preventing waste while maintaining fast application through the pre-positioned delivery mechanism.
4Reliability
If continuous manual pressure is used to maintain hemostasis, then hemostatic agent position is stabilized, but the procedure becomes time-consuming and requires sustained surgeon attention
Solution Approach 1:
The device provides sufficient mechanical stabilization through its geometric features that partial engagement is adequate to maintain position. The protrusions and base design create enough mechanical interlocking to stabilize the hemostatic agent without requiring excessive or continuous manual pressure, reducing the time burden on the surgeon.
Data Source
AI summary
The present disclosure provides hemostatic agent applicators configured to deliver hemostatic agents to an internal or external bleeding surface for promoting the clotting of blood, and to methods of using the applicator, and to kits comprising the applicator.