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US 2026/0083565 A1Published application
Dry hydrogel implants
AssigneeSparta Biomedical, Inc.
InventorsBenjamin J. WILEY, Dushyanth SURAKANTI
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Abstract
Dry cellulose-reinforced hydrogels may include a cellulose nanofiber network and an interstitial hydrogel portion within interstitial regions of the cellulose nanofiber network, the interstitial hydrogel portion comprising a hydrogel that is dry. The dry hydrogel implant may be inserted into the body and allowed to rehydrate in situ.
Claims20
An implant, comprising:
- an implant body having a bearing surface;
- an anchoring base coupled to the implant body;
- and
- a cellulose-reinforced dry hydrogel comprising:
- a cross-linked cellulose nanofiber network secured over the bearing surface of the implant body;
- and
- an interstitial hydrogel portion within interstitial regions of the cross-linked cellulose nanofiber network, wherein the interstitial hydrogel portion has a water content of 20% or less.
4 more elements
(canceled)
A method of forming an implant having a cellulose-reinforced hydrogel, comprising:
- attaching a cross-linked cellulose nanofiber network to a top bearing surface of the implant;
- infiltrating a hydrogel material within interstitial regions of the cross-linked cellulose nanofiber network to form the cellulose-reinforced hydrogel;
- and
- heating the cellulose-reinforced hydrogel so that a water content of the cellulose-reinforced hydrogel is 20% or less.
1 more element
-19. (canceled)
A method of implanting a resurfacing implant, the method comprising:
- forming an opening in a bone;
- inserting the resurfacing implant into the opening in the bone so that a bearing surface of the resurfacing implant faces away from the bone, wherein the bearing surface comprises a cellulose-reinforced hydrogel having a water content of 20% or less, wherein the cellulose-reinforced hydrogel comprises a cross-linked cellulose nanofiber network that is impregnated with a polyvinyl alcohol (PVA) hydrogel;
- and
- allowing the cellulose-reinforced hydrogel to rehydrate in situ to have a water content of greater than 30%.
1 more element
Dependencies are inferred from the claim text.