IP Library Granted Patent US 10,441,683
Granted Patent B2
US 10,441,683 · App. 15/710,071 · Granted Oct 15, 2019

Method for restoring bone using shapeable bone graft substitute and instruments for delivery thereof

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Quick Facts
Patent No.
US 10,441,683
App. No.
15/710,071
Granted
Oct 15, 2019
Kind
B2
Abstract

Disclosed is directed to a method for restoring bone in an animal comprising: accessing a site to be restored; loading a syringe body with a flowable bone graft material; mating the syringe body with a delivery tube; positioning the delivery tube at the site to be restored; using a syringe piston to advance the said material into the delivery tube; using the syringe piston or a plunger that mates with the delivery tube after removal of the syringe body to deliver the bone graft to the site at a force of less than 50 lbs. extrusion force; wherein said material is at least 75% porous with a mineral to polymer ratio of 80:20.

Claims (16)

1. A method for restoring bone in an animal comprising:

accessing a site to be restored;

loading a syringe body with a flowable bone graft material;

imbibing the flowable bone graft material with bone marrow aspirate, blood or saline with application of positive pressure for a sufficient period of time to form a homogeneous injectable mass;

mating the syringe body with a delivery tube;

positioning the delivery tube at the site to be restored;

using a syringe piston to advance the said material into the delivery tube;

using the syringe piston or a plunger that mates with the delivery tube after removal of the syringe body to deliver the homogeneous injectable mass to the site at a force of less than 50 lbs. extrusion force;

wherein the flowable bone graft material is at least 75% porous,

wherein the flowable bone graft material comprises a dry bone graft material having a homogeneous mixture comprising collagen in the amount of about 15% to about 30% by weight and a calcium phosphate,

wherein a ratio of the collagen and the calcium phosphate is same throughout the homogeneous mixture, and

wherein the dry bone graft material has macro-porosity, meso-porosity, and microporosity.

2. The method of claim 1 , wherein the extrusion force is between about 20 lbs to about 25 lbs.

3. The method of claim 1 , wherein the syringe body and delivery tube are threadingly engaged.

4. The method of claim 1 , wherein said flowable bone graft material is 80% porous.

5. The method of claim 1 , wherein said flowable bone graft material is 90% porous.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2023
From: ORTHOVITA, INC.
To: STRYKER CORPORATION
Reel/Frame 065735/0360 →
MERGER Recorded Jun 13, 2018
From: VITA SPECIAL PURPOSE CORPORATION
To: VITA LICENSING, INC.
Reel/Frame 046339/0726 →
MERGER Recorded May 11, 2018
From: VITA LICENSING, INC.; PARTISYN CORP.
To: ORTHOVITA, INC.
Reel/Frame 045779/0456 →
MERGER Recorded May 11, 2018
From: VITA SPECIAL PURPOSE CORPORATION
To: VITA LICENSING, INC.
Reel/Frame 046137/0306 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2017
From: BAGGA, CHARANPREET S.; CLINEFF, THEODORE D.; ERBE, ERIK M.; PARIS, MICHAEL W.; NAGVAJARA, GINA M.; KOBLISH, ANTONY
To: VITA SPECIAL PURPOSE CORPORATION
Reel/Frame 043960/0523 →