Delivery system for bone growth promoting material

• US 20070071791A1
• Filed: 10/13/2006
• Published: 03/29/2007
• Est. Priority Date: 01/28/2004
• Status: Active Grant

• Current Assignee: Ultradent Products Incorporated
• Original Assignee: Ultradent Products Incorporated
• Inventors: Fischer, Dan
• Granted Patent: US 8,277,828 B2
• Time in Patent Office: Days
• US Class Current: 424/423
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 2017/564 Methods for bone or joint treatment
• CPC Class Codes: A61C 5/62 Applicators, e.g. syringes or guns
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2310/00359 Bone or bony tissue
• CPC Class Codes: A61L 2430/02 for reconstruction of bones; weight-bearing implants
• CPC Class Codes: A61L 27/32 Phosphorus-containing materials, e.g. apatite
• CPC Class Codes: A61L 27/3608 Bone, e.g. demineralised bone matrix [DBM], bone powder
• CPC Class Codes: A61L 27/365 Bones
• CPC Class Codes: A61L 27/46 with phosphorus-containing inorganic fillers

Abstract

A delivery system that includes a bone growth promoting material encapsulated within a water absorptive gelatinizable covering is used to promote bone growth in order to repair a bone defect and/or strengthen a weakened bone region. The delivery system may be shaped and sized in order to fit within a bleeding wound (e.g. one that is formed in the gingiva when a tooth is extracted). The covering may be formed of a gelatinizable gauze that forms a gel-like material when moistened with water. The delivery system is contained within a moisture resistant package prior to use. Alternatively, the delivery system comprises a bone growth promoting material and thickening agent contained within a syringe that, upon adding water, form a viscous gel or stiff putty. A polymerizable resin may be placed over the bone growth composition after placement on a bone to form a protective barrier layer.

Claims