# A Heart Plaque Removal Tool That Cuts Both Ways > 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. - **Patent:** US 12733952 - **Original title:** Atherectomy system adapted to enable retrograde ablation - **Granted:** 2026 - **Status:** Active - **Times cited:** 0 - **Field:** medical_devices, cardiovascular, surgical_tools ## What it does This atherectomy system is designed to remove plaque from inside blood vessels. It uses a single atherectomy tool that has a cutting part at its tip (distal region) for forward-moving ablation (anterograde) and another cutting part further back (proximal region) for backward-moving ablation (retrograde). A handle lets the doctor move an actuation member in one direction to cut forward and in a second direction to cut backward. The clever part is that the system is built to give the doctor the same feeling or feedback, no matter which direction the tool is cutting, as stated in the abstract. ## What it does NOT cover - Does not cover atherectomy systems that require two separate tools for anterograde and retrograde plaque removal. - Does not cover systems where the doctor receives different tactile feedback when the tool is cutting in different directions. - Does not cover atherectomy tools that can only remove plaque in one direction, either forward or backward. - Does not cover systems that lack a drive coil or a proximal handle with an actuation member for controlling the tool. ## The clever bit The truly novel aspect is combining both forward (anterograde) and backward (retrograde) plaque removal capabilities into a single atherectomy tool, while ensuring the doctor gets the exact same tactile feedback regardless of the cutting direction. This simplifies the procedure and improves control. ## Real-world examples 1. Rotational atherectomy devices 2. Directional atherectomy catheters 3. Orbital atherectomy systems ## Why it matters Atherectomy is a procedure to remove plaque that builds up in arteries, which can lead to serious health problems like heart attacks or strokes. Having a single tool that can effectively clear blockages in both directions could make these procedures faster and potentially more complete. It could also simplify the process for doctors by providing consistent control and feel. ## Frequently asked questions ### What does A Heart Plaque Removal Tool That Cuts Both Ways cover? 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. ### 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? Atherectomy is a procedure to remove plaque that builds up in arteries, which can lead to serious health problems like heart attacks or strokes. Having a single tool that can effectively clear blockages in both directions could make these procedures faster and potentially more complete. It could also simplify the process for doctors by providing consistent control and feel. ### What does this patent NOT cover? Does not cover atherectomy systems that require two separate tools for anterograde and retrograde plaque removal. **Full plain-English explainer:** https://patentbrief.org/patent/us/12733952/atherectomy-system-adapted-to-enable-retrograde-ablation **Original patent:** https://patents.google.com/patent/US12733952 --- _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: - [How Doctors Use CT Scans and X-rays to Check Heart Arteries](https://patentbrief.org/patent/us/12048575/systems-and-methods-for-registration-of-angiographic-projections-with-computed-t) — This patent describes a method for precisely evaluating blockages in heart arteries by combining a single X-ray image with a detailed 3D CT scan, then calculating blood flow. - [Removing Blood Clots from Brain Vessels with a Special Catheter](https://patentbrief.org/patent/us/12734333/rapid-aspiration-thrombectomy-system-and-method) — 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. - [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. - [Surgical Tool with Flexible, Articulating, and Rotating End Effectors](https://patentbrief.org/patent/us/10736702/activating-and-rotating-surgical-end-effectors) — This patent describes a surgical tool with a flexible tip that can bend in multiple directions and also twist, allowing surgeons to precisely control instruments like graspers and cutters inside the body.