Protection and Delivery of Multiple Therapeutic Proteins for Specialized Wound Healing
Legal Citation
Summary of the Inventive Concept
An innovative system for delivering multiple therapeutic proteins to wounds in specific, challenging environments, enhancing wound healing outcomes in extreme cold, high-altitude, disaster relief, and compromised immune system scenarios.
Background and Problem Solved
The original patent disclosed a composition for delivering multiple therapeutic proteins for wound healing. However, this composition may not be suitable for use in extreme or specialized environments. The present inventive concept addresses this limitation by adapting the original composition for use in these specific scenarios, ensuring effective wound healing in challenging conditions.
Detailed Description of the Inventive Concept
The new inventive concept comprises a hydrogel and a complex or coacervate of a polycationic polymer, a polyanionic polymer, fibroblast growth factor 2 (FGF-2), and stromal cell-derived factor 1 alpha (SDF-1α) embedded in the hydrogel. The polycationic polymer is specifically designed to remain stable in extreme temperatures (below 0°C or above 37°C) or to be biodegradable within a certain timeframe (7-10 days). The polyanionic polymer is heparin or heparan sulfate. The system is designed for use in wound healing in extreme cold environments, high-altitude environments, disaster relief situations, and for treating chronic wounds in patients with diabetes or compromised immune systems.
Novelty and Inventive Step
The new claims introduce novel and non-obvious adaptations of the original composition for use in specialized environments, including the use of thermoresponsive polymers, biodegradable polymers, and specific polyanionic polymers. These adaptations provide a significant advantage in wound healing outcomes in these challenging scenarios.
Alternative Embodiments and Variations
Alternative embodiments of the inventive concept could include the use of different polycationic or polyanionic polymers, varying the concentration of the therapeutic proteins, or incorporating additional components to enhance wound healing. Variations could also include adapting the system for use in other specialized environments, such as high-humidity or high-radiation settings.
Potential Commercial Applications and Market
The inventive concept has significant commercial potential in the wound care market, particularly in niches such as extreme environment wound care, disaster relief, and chronic wound treatment. The system could be marketed to hospitals, clinics, and emergency response organizations, offering a unique solution for wound healing in challenging scenarios.
CPC Classifications
| Section | Class | Group |
|---|---|---|
| A | A61 | A61K47/36 |
| A | A61 | A61K9/0019 |
| A | A61 | A61K9/06 |
| A | A61 | A61K35/16 |
| A | A61 | A61K35/19 |
| A | A61 | A61K38/177 |
| A | A61 | A61K38/18 |
| A | A61 | A61K38/1825 |
| A | A61 | A61K38/195 |
| A | A61 | A61K47/34 |
| A | A61 | A61K47/42 |
| A | A61 | A61L15/225 |
| A | A61 | A61L15/40 |
| A | A61 | A61L15/44 |
| A | A61 | A61L27/18 |
| A | A61 | A61L27/20 |
| A | A61 | A61L27/225 |
| A | A61 | A61L27/26 |
| A | A61 | A61L27/3616 |
| A | A61 | A61L27/52 |
| A | A61 | A61L27/54 |
| A | A61 | A61L27/56 |
| A | A61 | A61L31/041 |
| A | A61 | A61L31/042 |
| A | A61 | A61L31/046 |
| A | A61 | A61L31/145 |
| A | A61 | A61L31/16 |
| A | A61 | A61P9/10 |
| A | A61 | A61L2300/25 |
| A | A61 | A61L2300/252 |
| A | A61 | A61L2300/414 |
| A | A61 | A61L2300/418 |
| A | A61 | A61L2400/04 |
| A | A61 | A61L2430/20 |
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Biomedical engineering, specifically biomaterials and protein delivery systems for wound healing and tissue repair, with expertise in polymer chemistry, protein stabilization, and controlled drug delivery mechanisms
Person of Ordinary Skill (PHOSITA) Profile
A researcher or engineer with advanced degrees in biomedical engineering or related fields, possessing knowledge of polymer synthesis, protein interactions, hydrogel formulations, and wound healing technologies
Obviousness Rationale
A person of ordinary skill would recognize that the source patent's fundamental composition of hydrogel-embedded protein complexes provides a clear technological foundation for adapting the delivery system to specialized environmental conditions. The PTD's variations represent predictable extensions of the original patent's core technology, utilizing known polymer modification techniques to address specific wound healing challenges. The modifications demonstrate standard engineering problem-solving by applying known polymer design principles to enhance the original composition's utility in extreme environments.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,631 |
|---|---|
| Title | Protection and delivery of multiple therapeutic proteins |
| Assignee(s) | UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION |