Enhanced Balloon Expandable Endoprosthesis with Improved Deliverability and Deployment
Legal Citation
Summary of the Inventive Concept
This invention relates to an improved balloon expandable endoprosthesis with enhanced deliverability and deployment features, addressing the limitations of existing endoprostheses in terms of trackability, pushability, and radial strength.
Background and Problem Solved
The original balloon expandable endoprosthesis patent (US [insert patent number]) has limitations in its deliverability, deployment, and radial strength. The new inventive concept addresses these limitations by introducing an improved radially compressible structure, modified proximal and distal ends, optimized ring patterns, and advanced coating technologies.
Detailed Description of the Inventive Concept
The enhanced balloon expandable endoprosthesis features a stent-graft with an optimized ring pattern for enhanced radial strength and flexibility, and a bio-compatible coating for reduced thrombogenicity. The delivery device is equipped with an integrated pressure monitoring system for real-time feedback during deployment, ensuring precise control over the deployment process. The modified proximal end of the endoprosthesis enables enhanced trackability, while the reinforced distal tip improves pushability. The retractable sheath with a controlled-release mechanism allows for precise deployment.
Novelty and Inventive Step
The new inventive concept introduces several novel features, including the improved radially compressible structure, the integrated pressure monitoring system, and the optimized ring pattern. These features provide a non-obvious solution to the limitations of the original patent, offering enhanced deliverability, deployment, and radial strength.
Alternative Embodiments and Variations
Alternative embodiments of the inventive concept may include variations in the stent-graft material, ring pattern, and coating technologies. Additionally, the delivery device may be modified to accommodate different vasculature sizes and shapes.
Potential Commercial Applications and Market
The enhanced balloon expandable endoprosthesis has significant commercial potential in the medical device industry, particularly in the treatment of vascular diseases. The target market includes hospitals, clinics, and medical research institutions.
CPC Classifications
| Section | Class | Group |
|---|---|---|
| A | A61 | A61F2/958 |
| A | A61 | A61F2/07 |
| A | A61 | A61M25/10 |
| A | A61 | A61F2/89 |
| A | A61 | A61F2002/072 |
| A | A61 | A61F2240/001 |
| A | A61 | A61F2240/008 |
| A | A61 | A61M2025/1004 |
| A | A61 | A61M2025/1068 |
| A | A61 | A61M2025/1075 |
| A | A61 | A61M2025/1084 |
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Interventional medical devices, specifically endovascular stent-grafts and deployment systems for cardiovascular interventions. Requires expertise in materials engineering, medical device design, interventional cardiology, and biomechanical engineering
Person of Ordinary Skill (PHOSITA) Profile
A biomedical engineer or interventional cardiologist with advanced degree, 5-10 years experience in medical device design, familiar with stent technologies, balloon catheter mechanics, and vascular intervention techniques
Obviousness Rationale
A PHOSITA would recognize the PTD's variations as straightforward engineering improvements to the source patent's fundamental stent-graft design. The disclosed modifications represent predictable variations using known techniques in endoprosthesis engineering, addressing common performance limitations through incremental design adjustments. The technical solutions proposed are consistent with established approaches in medical device optimization.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,444 |
|---|---|
| Title | Balloon expandable endoprosthesis |
| Assignee(s) | W. L. Gore & Associates, Inc. |