# A New Heart Valve That Replaces Old Ones Without Open Surgery > This patent describes a prosthetic heart valve that can be inserted without major surgery, using an expandable support and special arms to hold it in place within the heart. - **Patent:** US 12734030 - **Original title:** Prosthetic heart valve devices and associated systems and methods - **Granted:** 2026 - **Status:** Active - **Times cited:** 0 - **Field:** biotech, medical_devices, cardiology, minimally_invasive_surgery ## What it does This technology describes a prosthetic heart valve designed for percutaneous replacement, meaning it's inserted through a small incision rather than open-heart surgery. The device includes an expandable support that fits between the natural valve's leaflets. Crucially, it features multiple asymmetrically arranged arms. These arms are designed to securely hold the native valve's leaflets between themselves and the outer surface of the expandable support. Some versions of these arms also have tip portions that engage the subannular surface of the native valve, providing extra stability. ## What it does NOT cover - Does not cover heart valve replacements requiring traditional open-heart surgery, as it specifically focuses on percutaneous methods. - Does not cover prosthetic valves that lack asymmetrically arranged arms for securing native valve leaflets. - Does not cover devices that do not engage the subannular surface of the native valve with tip portions, if that specific engagement is absent. - Does not cover prosthetic valves that are not expandable or do not use an expandable support structure. - Does not cover non-valve cardiac implants, such as stents for arteries or pacemakers. ## The clever bit The novelty lies in the specific design for securing the new valve: using asymmetrically arranged arms that grip the native valve's leaflets and tip portions that engage the subannular surface. This combination provides a stable fit for a percutaneously delivered valve, which is a significant engineering challenge. ## Real-world examples 1. Transcatheter Aortic Valve Replacement (TAVR) devices 2. Transcatheter Mitral Valve Replacement (TMVR) devices 3. Edwards SAPIEN transcatheter heart valves 4. Medtronic CoreValve transcatheter heart valves ## Why it matters Replacing a damaged heart valve is a critical medical procedure, and traditional open-heart surgery carries significant risks and recovery times. This patent focuses on less invasive, percutaneous methods, which can offer patients quicker recovery, fewer complications, and broader access to life-saving treatments. Such innovations are vital for improving patient outcomes and expanding the treatable population for heart valve diseases. ## Frequently asked questions ### What does A New Heart Valve That Replaces Old Ones Without Open Surgery cover? This patent describes a prosthetic heart valve that can be inserted without major surgery, using an expandable support and special arms to hold it in place within the heart. ### 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? Replacing a damaged heart valve is a critical medical procedure, and traditional open-heart surgery carries significant risks and recovery times. This patent focuses on less invasive, percutaneous methods, which can offer patients quicker recovery, fewer complications, and broader access to life-saving treatments. Such innovations are vital for improving patient outcomes and expanding the treatable population for heart valve diseases. ### What does this patent NOT cover? Does not cover heart valve replacements requiring traditional open-heart surgery, as it specifically focuses on percutaneous methods. **Full plain-English explainer:** https://patentbrief.org/patent/us/12734030/prosthetic-heart-valve-devices-and-associated-systems-and-methods **Original patent:** https://patents.google.com/patent/US12734030 --- _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 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. - [A Tiny Blood Pump That Minimizes Damage to Blood Cells](https://patentbrief.org/patent/us/12736054/non-occluding-intravascular-blood-pump-providing-reduced-hemolysis) — This patent describes a small, tube-shaped blood pump designed to fit inside a blood vessel, using a spinning fan to move blood without blocking flow and with special features to prevent damage to red blood cells. - [How Doctors Implant a Permanent Stent Using a Balloon](https://patentbrief.org/patent/us/4733665/palmaz-balloon-expandable-stent) — This patent describes the method for placing a permanent, expandable wire mesh tube inside a blood vessel or other body tube using a balloon-tipped catheter to widen it and keep it open. - [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 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.