Enhanced Absorbable Polymer Medical Implants with Microstructure-Mediated Absorption Profiles
Legal Citation
Summary of the Inventive Concept
The present invention relates to absorbable polymer medical implants with microstructure-mediated absorption profiles that facilitate controlled tissue deposition, integration, and degradation, offering improved healing outcomes and reduced complications.
Background and Problem Solved
The original patent disclosed devices with microstructure-mediated absorption profiles, but these devices have limitations in terms of tissue integration, inflammation, and degradation rates. The new inventive concept addresses these limitations by introducing hierarchical microfeature patterns, gradients of microfeature sizes, and bioactive coatings to enhance tissue integration, promote non-inflammatory healing, and control degradation rates.
Detailed Description of the Inventive Concept
The enhanced absorbable polymer medical implants feature microstructures arranged in a hierarchical pattern, comprising a gradient of microfeature sizes that facilitate controlled tissue deposition. The microfeatures have varying dimensions, with larger microfeatures promoting fibroblast migration and smaller microfeatures inducing non-inflammatory healing. The implants may be coated with bioactive materials to further enhance tissue integration. The microstructure-mediated absorption profiles enable simultaneous deposition of connective tissue and degradation of the implant, resulting in improved healing outcomes.
Novelty and Inventive Step
The new inventive concept introduces novel hierarchical microfeature patterns, gradients of microfeature sizes, and bioactive coatings that are not disclosed in the original patent. These features provide a non-obvious solution to the limitations of the original patent, offering improved tissue integration, controlled degradation rates, and reduced complications.
Alternative Embodiments and Variations
Alternative embodiments of the inventive concept may include varying the dimensions and patterns of the microfeatures, using different bioactive coatings, or incorporating additional features such as nanoscale textures or surface treatments to further enhance tissue integration. The concept may be applied to various implant types, including surgical meshes, stents, and tissue scaffolds.
Potential Commercial Applications and Market
The enhanced absorbable polymer medical implants have significant commercial potential in the surgical implant market, particularly in the fields of orthopedic, cardiovascular, and general surgery. The improved healing outcomes and reduced complications offered by the inventive concept may lead to increased adoption and market share, with potential applications in human and veterinary medicine.
CPC Classifications
| Section | Class | Group |
|---|---|---|
| A | A61 | A61L27/58 |
| A | A61 | A61L27/18 |
| A | A61 | A61L27/22 |
| A | A61 | A61L27/34 |
| A | A61 | A61L31/06 |
| A | A61 | A61L31/10 |
| A | A61 | A61L31/148 |
| A | A61 | A61L27/30 |
| A | A61 | A61L31/043 |
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Biomedical engineering, specifically surgical implant design with focus on absorbable polymer materials and surface microstructure engineering for tissue integration
Person of Ordinary Skill (PHOSITA) Profile
A biomedical engineer or materials scientist with expertise in polymer science, surface modification techniques, and medical device design, holding at least a master's degree with 3-5 years of specialized experience in biomaterial implant development
Obviousness Rationale
A PHOSITA would recognize that the PTD's hierarchical microfeature design represents a predictable variation of the source patent's microstructure approach. The disclosed gradient of microfeature sizes and bioactive coatings are logical extensions of the original patent's teachings about surface texture and tissue interaction. The modifications represent routine engineering optimization within the known design parameters of absorbable medical implants.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,700 |
|---|---|
| Title | Device with microstructure mediated absorption profile |
| Assignee(s) | BVW Holding AG |