US6736849B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-mineralized spinal implants
Assignee: DePuy Products Inc
•
Filing: 2002-03-29
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Granted: 2004-05-18
•
Expires: 2022-03-29
Abstract
Abstract A spinal implant is provided to integrate with and support vertebrae in a vertebral column. The spinal implant includes a body and a mineralized, bioactive surface coating chemically bonded to a portion of the body. The coating includes a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 mum. The body of the spinal implant is ring-shaped and defines a central passageway.
Inventors
- 👤 Panjian Li
- 👤 Todd Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:28
CPC Classifications
B; B82; B82Y; B82Y30/00; A; A61; A61K; A61K47/00; A61K47/50; A61K47/69; A61K47/6957; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/44; A61F2/4455; A61L; A61L27/00; A61L27/02; A61L27/025; A61L27/04; A61L27/14; A61L27/16; A61L27/18; A61L27/28; A61L27/30; A61L27/32; A61F2310/00; A61F2310/00389; A61F2310/00592; A61F2310/00796; A61L2430/00; A61L2430/38
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
56 words
A spinal implant to integrate with and support vertebrae in a vertebral column, comprising: a body, and a mineralized, bioactive surface coating chemically bonded to a portion of the body, the coating comprising a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 2
Dependent Claim
56 words
A spinal implant to integrate with and support vertebrae in a vertebral column, comprising: a body, and a mineralized, bioactive surface coating chemically bonded to a portion of the body, the coating comprising a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 3
Dependent Claim
17 words
The spinal implant of claim 1 , wherein the body is ring-shaped and defines a central passageway.
Claim 4
Dependent Claim
25 words
The spinal implant of claim 2 , wherein the body includes a plurality of members coupled to each other to form a generally diamond-shaped pattern.
Claim 5
Dependent Claim
40 words
The spinal implant of claim 3 , wherein each member includes an outer surface, an inner surface, and side surfaces, and wherein the coating is chemically bonded to the outer, inner, and side surfaces of the members of the body.
Claim 6
Dependent Claim
22 words
The spinal implant of claim 2 , wherein the body has a plurality of apertures defined by side surfaces of the body.
Claim 7
Dependent Claim
13 words
The spinal implant of claim 5 , wherein the apertures are generally diamond-shaped.
Claim 8
Dependent Claim
52 words
The spinal implant of claim 6 , wherein the body further includes an inner surface defining the passageway, an outer surface, and the side surfaces defining the generally diamond-shaped apertures, and wherein the coating is chemically bonded to at least a portion of the inner, outer, and side surfaces of the body.
Claim 9
Dependent Claim
13 words
The spinal implant of claim 1 , wherein the body comprises a metal.
Claim 10
Dependent Claim
12 words
The spinal implant of claim 8 , wherein the body comprises titanium.
Claim 11
Dependent Claim
13 words
The spinal implant of claim 1 , wherein the body comprises a polymer.
Claim 12
Dependent Claim
13 words
The spinal implant of claim 1 , wherein the body comprises a ceramic.
Claim 13
Dependent Claim
12 words
The spinal implant of claim 1 , wherein the body comprises silicon.
Claim 14
Dependent Claim
12 words
The spinal implant of claim 1 , wherein the body comprises carbon.
Claim 15
Dependent Claim
18 words
The spinal implant of claim 1 , wherein the coating further comprises functional molecules for promoting bone formation.
Claim 16
Dependent Claim
14 words
The spinal implant of claim 1 , wherein the coating further comprises growth factors.
Claim 17
Dependent Claim
14 words
The spinal implant of claim 1 , wherein the coating further comprises a medicine.
Claim 18
Dependent Claim
14 words
The spinal implant of claim 1 , wherein the coating further comprises an antibiotic.
Claim 19
Dependent Claim
48 words
An implantable prosthetic device, comprising: a spinal implant, and a mineralized, bioactive surface coating chemically bonded to a portion of the body, the coating comprising a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 20
Dependent Claim
48 words
An implantable prosthetic device, comprising: a spinal implant, and a mineralized, bioactive surface coating chemically bonded to a portion of the body, the coating comprising a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 21
Dependent Claim
17 words
The device of claim 18 , wherein the spinal implant is ring-shaped and defines a central passageway.
Claim 22
Dependent Claim
29 words
The device of claim 19 , wherein the spinal implant has a plurality of diamond-shaped apertures defined therein, and wherein the apertures are in communication with the central passageway.
Claim 23
Dependent Claim
43 words
The device of claim 19 , wherein the spinal implant includes an outer surface, an inner surface defining the central passageway, and side surfaces defining the apertures, and wherein the coating is bonded to the outer, inner, and side surfaces of the body.
Claim 24
Dependent Claim
12 words
The device of claim 18 , wherein the spinal implant comprises titanium.
Claim 25
Dependent Claim
13 words
The device of claim 18 , wherein the coating further comprises an antibiotic.
Claim 26
Independent Claim
49 words
A method of fabricating an implantable prosthetic device, comprising the step of: coating a body of a spinal implant with a bone-like composite, the composite including a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 27
Independent Claim
49 words
A method of fabricating an implantable prosthetic device, comprising the step of: coating a body of a spinal implant with a bone-like composite, the composite including a non-hydroxyl containing carbonated calcium phosphate bone mineral nano-crystalline apatite with chemically adsorbed water having a crystal size less than about 1 μm.
Claim 28
Dependent Claim
40 words
The method of claim 24 , wherein the body defines an outer surface, an inner surface, and side surfaces, and wherein the coating step comprises coating each of the outer, inner, and side surfaces of the body with the composite.
Claim 29
Dependent Claim
19 words
The method of claim 24 , wherein the coating step comprises chemically bonding the composite to the spinal implant.
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