IP Library Granted Patent US 10,166,315
Granted Patent B2
US 10,166,315 · App. 15/146,417 · Granted Jan 1, 2019

Chitosan-enhanced electrospun fiber compositions

Inventors: Jed Johnson (London, OH); Ronald Lloyd Bracken (Monroe, GA); Jason Chakroff (Columbus, OH)
Assignee: NANOFIBER SOLUTIONS, INC.
A61L27/3834A61L27/20A61L2400/06A61L2430/24
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Quick Facts
Patent No.
US 10,166,315
App. No.
15/146,417
Granted
Jan 1, 2019
Kind
B2
Abstract

A composition may comprise a plurality of polymeric electrospun fiber fragments, and a carrier medium comprising an effective amount of chitosan. Such a composition may further include a plurality of polymeric electrospun fiber fragment clusters. A kit may comprise a first component of a plurality of polymeric electrospun fiber fragments, and a second component of a carrier medium comprising an effective amount of chitosan. A method of treatment may comprise injecting into a portion of a body a composition which may comprise a plurality of polymeric electrospun fiber fragments, and a carrier medium comprising an effective amount of chitosan. The treatment may be directed to one or more of joint inflammation, osteoarthritis, a tissue injury, a muscle tear, a ligament tear, a tendon tear, a void, incontinence, an aneurysm, and a tumor.

Claims (19)

1. A composition comprising:

a plurality of synthetic polymeric electrospun fiber fragments; and

an aqueous carrier medium comprising an effective amount of chitosan;

wherein the plurality of synthetic polymeric electrospun fiber fragments are present in an amount from about 1 fragment per mm 3 to about 100,000 fragments per mm 3 ; and

wherein the effective amount of chitosan to the aqueous carrier medium is from about 0.0001 wt % to about 5 wt %.

2. The composition of claim 1 , further comprising a plurality of synthetic polymeric electrospun fiber fragment clusters.

3. The composition of claim 2 , wherein the plurality of synthetic polymeric electrospun fiber fragment clusters have, independently, an average length of about 1 μm to about 1000 μm, an average width of about 1 μm to about 1000 μm, and an average height of about 1 μm to about 1000 μm.

4. The composition of claim 2 , wherein a weight percent of the plurality of synthetic polymeric electrospun fiber fragments and the plurality of synthetic polymeric electrospun fiber fragment clusters to the aqueous carrier medium is about 0.0001 wt % to about 10 wt %.

5. The composition of claim 1 , wherein the plurality of synthetic polymeric electrospun fiber fragments have, independently, an average length of about 1 μm to about 1000 μm, and an average diameter of about 0.1 μm to about 10 μm.

6. The composition of claim 1 , further comprising at least one biological cell selected from the group consisting of an autologous cell, a syngeneic cell, an allogeneic cell, a differentiated cell, a stem cell, a multipotent stem cell, a pluripotent stem cell, an induced pluripotent stem cell, a totipotent stem cell, a bone marrow-derived stem cell, a cord blood stem cell, a mesenchymal cell, an embryonic stem cell, platelet-rich plasma, stromal vascular fraction, and combinations thereof.

7. A kit comprising:

a first component comprising a plurality of synthetic polymeric electrospun fiber fragments; and

a second component comprising an aqueous carrier medium comprising an effective amount of chitosan;

wherein the plurality of synthetic polymeric electrospun fiber fragments are present in an amount from about 1 fragment per mm 3 to about 100,000 fragments per mm 3 ; and

wherein the effective amount of chitosan to the aqueous carrier medium is from about 0.0001 wt % to about 5 wt %.

8. The kit of claim 7 , wherein the first component further comprises a plurality of synthetic polymeric electrospun fiber fragment clusters.

9. A method of treatment comprising injecting, into a portion of a body, the composition of claim 1 .

10. The method of claim 9 , wherein the composition further comprises a plurality of synthetic polymeric electrospun fiber fragment clusters.

11. The method of claim 9 , wherein the portion of the body comprises one or more of a portion of cartilage, a meniscus, a ligament, a tendon, a joint, a muscle, a portion of skin, a sphincter, and a blood vessel.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2022
From: NANOFIBER SOLUTIONS, LLC
To: NFS IP HOLDINGS, LLC
Reel/Frame 061882/0663 →
CHANGE OF NAME Recorded Mar 21, 2019
From: NANOFIBER SOLUTIONS, INC.
To: NANOFIBER SOLUTIONS, LLC
Reel/Frame 048680/0973 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2016
From: JOHNSON, JED
To: NANOFIBER SOLUTIONS, INC.
Reel/Frame 038995/0449 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2016
From: BRACKEN, RONALD LLOYD
To: NANOFIBER SOLUTIONS, INC.
Reel/Frame 038995/0520 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2016
From: CHAKROFF, JASON
To: NANOFIBER SOLUTIONS, INC.
Reel/Frame 038995/0674 →
Continuity (2)
Provisional Application 62156625 · May 4, 2015
Related Publication 20160325015A1 · Nov 10, 2016
Cited By (5)
US 12,201,749 US 12,246,114 US 12,263,269 US 12,491,061 US 12,564,658