Thrombus Removal Catheter With Protrusions And Apertures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current interventional catheters face challenges in safely and reliably removing thrombi from blood vessels, including inconsistent aspiration efficiency, potential for tissue damage, and the need for multiple catheters during procedures, which increases procedural time and risk.
Innovation Solution
A catheter with a tubular body featuring protrusions and apertures designed to dislodge and aspirate thrombi, utilizing a suction device and manually operated valve for controlled suction, allowing for effective thrombus removal without damaging surrounding tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple catheters are used during thrombectomy procedures, then thrombus removal effectiveness is improved, but procedural time and risk increase
Solution Approach 1:
The patent combines multiple catheter functions into a single integrated catheter device that can perform both aspiration and mechanical disruption of thrombus. This merging of functions eliminates the need to switch between multiple catheters during the procedure, thereby reducing procedural time while maintaining effective thrombus removal capability
Solution Approach 2:
The catheter is designed with multi-functionality, incorporating both aspiration lumens and protrusions for mechanical thrombus disruption. This universal design allows one catheter to perform multiple tasks that previously required separate devices, improving workflow efficiency and reducing the number of interventions needed
2Productivity
If strong suction is applied to aspirate thrombus, then thrombus removal efficiency is improved, but tissue damage risk increases
Solution Approach 1:
The catheter applies preliminary mechanical action through its protrusions to disrupt and loosen the thrombus before aspiration begins. This preliminary disruption reduces the suction force needed to remove the thrombus, thereby maintaining removal efficiency while minimizing the risk of damaging surrounding healthy tissue through excessive suction
Solution Approach 2:
The protrusions act as an intermediary mechanism between the suction force and the thrombus. Instead of applying strong suction directly to the thrombus, the protrusions first mechanically break it down into smaller, more aspiratable fragments, allowing for gentler and safer removal
3Device complexity
If conventional catheters are used without protrusions, then device simplicity is maintained, but aspiration efficiency becomes inconsistent
Solution Approach 1:
The catheter incorporates protrusions at specific locations along its length to create localized areas of enhanced thrombus interaction. These localized structural modifications improve aspiration efficiency at critical points without requiring complex changes to the entire catheter structure, thereby maintaining overall simplicity while enhancing performance consistency
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 catheter effectively dislodges and aspirates thrombi with controlled suction, reducing procedural time and risk, and is adaptable for various thrombectomy procedures, including arteriovenous grafts and fistulas, ensuring efficient thrombus removal and maintaining vascular patency.
Implementation Method 1
a suction is applied to the proximal end of the catheter to aspirate the thrombus from the blood vessel
Data Source
AI summary
A catheter, a kit and a method of using the catheter for removing a thrombus from a blood vessel in a mammal. The catheter includes a tubular body with a hollow interior, an exterior surface, a proximal end, and a distal end and a plurality of protrusions extending upwardly from the exterior surface, wherein each protrusion has an aperture. The distal end of the catheter is inserted into the blood vessel and a suction is applied to the proximal end of the catheter to aspirate the thrombus from the blood vessel. The kit includes the catheter, a suction device and a mechanism for controlling the suction flow.