IP Library Granted Patent US 12,097,645
Granted Patent B2
US 12,097,645 · App. 17/474,197 · Granted Sep 24, 2024

Automation mechanism for pre/clinical production of resorbable nerve guides

Inventors: Alexander James Repko (Pittsburgh, PA); Kacey Gribbin Marra (Canonsburg, PA); Benjamin Schilling (Pittsburgh, PA)
Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
B29C41/14B29C41/22B29C41/52A61L27/18B29K2995/006B29L2031/7532
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Quick Facts
Patent No.
US 12,097,645
App. No.
17/474,197
Granted
Sep 24, 2024
Kind
B2
Abstract

The presently disclosed subject matter relates to systems for making an implantable construct comprising a reservoir coupled to the at least one frame; a mandrel base coupled to the at least one frame; a mandrel coupled to the mandrel base; a first mechanism configured to be coupled to the at least one frame and configured to move the at least one frame along a first axis; a second mechanism configured to be coupled to the at least one frame and configured to rotate the least one mandrel base along a second axis between a first orientation and a second orientation; and a container configured to be coupled to the at least one frame and configured to receive the mandrel in the second orientation. The disclosed mechanisms can manually, semi-automatically, or automatically control the movements of the at least one frame, reservoir, mandrel, mandrel base, and container to produce the construct with a lumen. The presently disclosed subject matter also relates to methods for making the construct.

Claims (21)

1. A system for making a construct comprising:

at least one frame;

a reservoir coupled to the at least one frame;

a mandrel base coupled to the at least one frame;

a mandrel coupled to the mandrel base, wherein the mandrel is selected from the group consisting of a biodegradable structure, a biologically-derived structure, a bioactive structure, and combinations thereof;

a first mechanism configured to be coupled to the at least one frame and configured to move the at least one frame along a first axis;

a second mechanism configured to be coupled to the at least one frame and configured to rotate the least one mandrel base along a second axis between a first orientation and a second orientation; and

a container configured to be coupled to the at least one frame and configured to receive the mandrel in the second orientation.

2. The system of claim 1 , wherein the construct comprises a tube having a lumen.

3. The system of claim 2 , wherein the tube comprises an inner layer and an outer layer, wherein the inner layer is selected from the group consisting of a first biodegradable polymer, a particle, an active agent, and combinations thereof, wherein the outer layer is selected from the group consisting of a second biodegradable polymer, the particle, the active and combinations thereof.

4. The system of claim 3 , wherein the particle is selected from the group consisting of a microsphere, a nanosphere, and a combination thereof.

5. The system of claim 3 , wherein the particle comprises a double-walled particle, wherein the double-walled particle comprises the active agent that is released over a pre-determined period of time.

6. The system of claim 1 , wherein the mandrel comprises a cylindrical structure of purified collagen or a decellularized scaffold.

7. The system of claim 1 , wherein the first axis is a vertical axis, and the first mechanism changes a location of the mandrel from a first position at least in part within the reservoir to a second position outside the reservoir, or vice versa.

8. The system of claim 1 , wherein the second axis is a horizontal axis, wherein the first orientation is a vertical orientation, wherein the second orientation is a horizontal orientation.

9. The system of claim 1 , wherein the container includes a particle, wherein the particle is selected from the group consisting of a microsphere, a nanosphere, and a combination thereof.

10. The system of claim 8 , further comprising a third mechanism configured to move the container from a first position away from the mandrel in the second orientation to a second position to receive the mandrel in the second orientation.

11. The system of claim 1 , wherein the reservoir comprises a polymer solution, optionally, wherein the polymer solution is a polycaprolactone (PCL) solution.

12. The system of claim 1 , further comprising a housing configured to monitor and regulate temperature and humidity within the housing, wherein the system is located in the housing.

13. The system of claim 1 , further comprising a microcontroller, wherein the first and second mechanisms are manually, semi-automatically, or automatically controlled by the microcontroller, wherein the microcontroller monitors, records, and saves data related to conditions of the disclosed system, wherein the conditions include the temperature and the humidity.

14. The system of claim 1 , wherein the system comprises two or more mandrel bases and reservoirs, wherein the first and second mechanisms control movement of the two or more mandrel bases together or independently.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 20, 2022
From: REPKO, ALEXANDER JAMES; MARRA, KACEY GRIBBIN; SCHILLING, BENJAMIN
To: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
Reel/Frame 061490/0241 →
CONFIRMATORY LICENSE Recorded Jan 26, 2022
From: UNIVERSITY OF PITTSBURGH
To: THE GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE SECRETARY OF THE ARMY
Reel/Frame 058859/0670 →
Continuity (3)
Continuation PCTUS2020023708 · Mar 19, 2020
Provisional Application 62820425 · Mar 19, 2019
Related Publication 20210402654A1 · Dec 30, 2021