# Removing Blood Clots from Brain Vessels with a Special Catheter > This patent describes a specialized catheter system designed to quickly remove blood clots from tiny blood vessels in the brain, often used to treat strokes, by using suction. - **Patent:** US 12734333 - **Original title:** Rapid aspiration thrombectomy system and method - **Granted:** 2026 - **Status:** Active - **Times cited:** 0 - **Field:** medical_devices, biotech, healthcare, neurosurgery ## What it does The patent describes an intravascular access system for medical procedures inside the brain's blood vessels, specifically for rapid aspiration thrombectomy. The system includes an aspiration or support catheter with a flexible, hollow tip (distal luminal portion) that has an inner diameter defining a lumen. This lumen extends from a proximal opening to a distal opening. A key feature is a rigid spine attached to at least the proximal end of this flexible tip, extending backward. The system also includes a dilator, which is a flexible, thin device designed to fit inside the catheter's hollow tip. This setup allows doctors to navigate delicate brain blood vessels, reach a clot, and remove it using aspiration, which means sucking it out. ## What it does NOT cover - Does not cover systems for removing clots from blood vessels outside the brain (e.g., in the heart or legs). - Does not cover systems that use mechanical retrieval methods, like tiny cages or nets, instead of aspiration (suction). - Does not cover catheter systems where the rigid spine is not coupled to the proximal end of the flexible luminal portion. - Does not cover systems that lack a separate dilator component designed to be received within the catheter's lumen. - Does not cover catheters where the distal luminal portion is not flexible. - Does not cover systems where the rigid spine does not extend proximally from the luminal portion. ## The clever bit The clever part is combining a flexible catheter tip for navigating delicate brain vessels with a rigid spine attached proximally. This design likely provides better pushability and control for the surgeon while maintaining flexibility at the working end, which is essential for safely reaching and removing clots in the brain's intricate neurovasculature. ## Real-world examples 1. Neurovascular thrombectomy procedures 2. Catheters used in stroke treatment 3. Intravascular clot removal devices 4. Aspiration catheters for cerebral arteries ## Why it matters This technology is crucial for treating ischemic strokes, which happen when a blood clot blocks blood flow to the brain. Rapid removal of these clots can significantly reduce brain damage and improve patient outcomes, potentially preventing long-term disability or death. Systems like this enable doctors to perform minimally invasive procedures, reducing risks compared to open surgery. ## Frequently asked questions ### What does Removing Blood Clots from Brain Vessels with a Special Catheter cover? This patent describes a specialized catheter system designed to quickly remove blood clots from tiny blood vessels in the brain, often used to treat strokes, by using suction. ### When does this patent expire? This patent is expected to expire on September 15, 2046, when the invention enters the public domain. ### What problem does this patent solve? This technology is crucial for treating ischemic strokes, which happen when a blood clot blocks blood flow to the brain. Rapid removal of these clots can significantly reduce brain damage and improve patient outcomes, potentially preventing long-term disability or death. Systems like this enable doctors to perform minimally invasive procedures, reducing risks compared to open surgery. ### What does this patent NOT cover? Does not cover systems for removing clots from blood vessels outside the brain (e.g., in the heart or legs). **Full plain-English explainer:** https://patentbrief.org/patent/us/12734333/rapid-aspiration-thrombectomy-system-and-method **Original patent:** https://patents.google.com/patent/US12734333 --- _Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._ ## Related patents Semantically similar inventions in the PatentBrief corpus: - [A Heart Plaque Removal Tool That Cuts Both Ways](https://patentbrief.org/patent/us/12733952/atherectomy-system-adapted-to-enable-retrograde-ablation) — This patent describes a medical device for clearing blocked arteries that can cut away plaque both forwards and backwards using a single tool, while giving the doctor consistent feedback. - [How a Catheter Blood Pump Extends Its Tip for Guidance](https://patentbrief.org/patent/us/12734351/catheter-blood-pump-delivery-guiding-systems-and-methods-of-use) — This patent describes a tiny blood pump on a catheter that can extend a part of its tip forward, guided by a separate internal wire, to help it move safely and precisely inside blood vessels. - [Catheter System for Opening and Closing Body Passages](https://patentbrief.org/patent/us/4195637/balloon-angioplasty-catheter-gruentzig) — This 1980 patent describes a medical catheter system with a guide catheter and a special dilatation catheter that can expand to open or close body passages, like blood vessels. - [Draining Brain Fluid into Neck Veins to Treat Hydrocephalus](https://patentbrief.org/patent/us/12734344/methods-and-systems-for-draining-cerebrospinal-fluid-into-the-venous-system) — This patent describes a medical device, a shunt, designed to drain excess fluid from the brain into a specific neck vein to treat a condition called hydrocephalus, using a controlled flow rate. - [A Medical Guidewire That Bends to Protect Tissue](https://patentbrief.org/patent/us/12734341/medical-guidewire-assembly-having-predetermined-spatial-geometry) — This patent describes a medical guidewire assembly designed to safely puncture a body wall, featuring a flexible tip that automatically forms a protective shape once it exits a guiding tube, preventing the sharp piercing tool from accidentally harming nearby healthy tissue.