Hemostatic Device with Removable Barrier for Renal Bleeding Control
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Solution Overview
Problem
A significant number of patients undergoing percutaneous renal procedures experience bleeding complications, leading to severe outcomes such as renal function loss, pain, prolonged hospitalization, and the need for surgical interventions due to inadequate hemostasis during and after the procedures.
Innovation Solution
The development of hemostatic devices featuring an elongate member with a hemostatic material coating and a removable barrier, designed to be deployed through a percutaneous sheath to reduce bleeding by promoting clot formation and maintaining contact with the tissue, which can be used in various percutaneous procedures including kidney stone removal and biopsy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If percutaneous procedures are performed to treat kidney conditions, then medical intervention effectiveness is improved, but bleeding complications occur leading to severe outcomes
Solution Approach 1:
The hemostatic material is pre-applied to the exterior surface of the elongate member before insertion, so that hemostatic action is immediately available when the member is deployed into the kidney, preventing bleeding rather than treating it after occurrence
Solution Approach 2:
The hemostatic material acts as an intermediary substance between the elongate member and the kidney tissue, facilitating hemostasis by absorbing blood and promoting clot formation at the interface between the device and tissue
2Object-affected harmful factors
If hemostatic material is applied to the elongate member, then bleeding is reduced, but device complexity increases
Solution Approach 1:
The hemostatic material is applied only to the exterior surface of the elongate member where it will contact kidney tissue, providing hemostatic function only at the specific location needed rather than throughout the entire device
Solution Approach 2:
The device combines the elongate member (providing structural support and access function) with hemostatic material (providing bleeding control), creating a composite structure where each material contributes its specific function
3Ease of operation
If the covering is designed to move slidably over the elongate member, then ease of deployment is improved, but manufacturing precision requirements increase
Solution Approach 1:
The covering is designed to move dynamically along the elongate member rather than being fixed, allowing it to slide into position during deployment and adapt to slight variations in device dimensions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hemostatic devices effectively reduce or prevent bleeding during and after percutaneous renal procedures, minimizing the risk of complications and facilitating quicker recovery by utilizing a range of hemostatic materials that are dissolvable and quickly reabsorbed, ensuring minimal risk to the patient.
Implementation Method 1
hemostatic material in contact with at least a portion of the exterior surface
Data Source
AI summary
Materials and methods for reducing or preventing bleeding and associated side effects during and after percutaneous medical procedures.