US20010041941A1
Expired / Lapsed
US
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Multipiece implants formed of bone material
Assignee: Synthes USA LLC
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Filing: 2001-03-22
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Granted: —
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Expires: 2021-03-22
Abstract
Abstract The present invention relates to an implant comprising two or more bone fragments that are combined to form a single unit. Cancellous bone or cortical bone is removed from a source and fashioned into bone components with desirable shapes and sizes. The bone components may be integrated to form implants for implantation in the body. Bone stock may be formed by combining sections of various bones of the body, and the bone stock may be further fashioned for use as implants with particular geometries.
Inventors
- 👤 Michael Boyer
- 👤 David Paul
- 👤 Thomas Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:08
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4644; A61F2/28; A61F2/30721; A61F2/30744; A61F2/3094; A61F2/30942; A61F2/44; A61F2/4455; A61F2/4465; B; B29; B29C; B29C43/00; B29C43/006; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8875; A61F2/30724; A61F2/30965; A61F2/442; A61F2/4603; A61F2/4611; A61F2002/2817; A61F2002/2825; A61F2002/2835; A61F2002/2839; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30011; A61F2002/30057; A61F2002/3006; A61F2002/30062; A61F2002/30075; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30115; A61F2002/30125; A61F2002/30126; A61F2002/30131; A61F2002/30133; A61F2002/30138; A61F2002/30148; A61F2002/30151; A61F2002/30153; A61F2002/30154; A61F2002/30158; A61F2002/30159; A61F2002/30166; A61F2002/30168; A61F2002/30179; A61F2002/30199; A61F2002/302; A61F2002/30205; A61F2002/3021; A61F2002/30212; A61F2002/30224; A61F2002/30225; A61F2002/30228; A61F2002/3023; A61F2002/30232; A61F2002/30233; A61F2002/30235; A61F2002/30237; A61F2002/30261; A61F2002/3028; A61F2002/30299; A61F2002/30316; A61F2002/30317; A61F2002/30322; A61F2002/30324; A61F2002/30327; A61F2002/30329; A61F2002/30331; A61F2002/30332; A61F2002/30354; A61F2002/30362; A61F2002/30364; A61F2002/30367; A61F2002/30383; A61F2002/30387; A61F2002/30405; A61F2002/30411; A61F2002/30426; A61F2002/30433; A61F2002/30448; A61F2002/30459; A61F2002/30462; A61F2002/30476; A61F2002/30477; A61F2002/30481; A61F2002/30484; A61F2002/30487; A61F2002/30492; A61F2002/30494; A61F2002/305; A61F2002/30507; A61F2002/30515; A61F2002/30535; A61F2002/30537; A61F2002/30538; A61F2002/3054; A61F2002/3055; A61F2002/30593; A61F2002/30599; A61F2002/30604; A61F2002/30616; A61F2002/30617; A61F2002/30667; A61F2002/3071; A61F2002/30733; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30782; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/3079; A61F2002/3082; A61F2002/30841; A61F2002/30843; A61F2002/30878; A61F2002/30891; A61F2002/30892; A61F2002/30894; A61F2002/30904; A61F2/30907; A61F2002/30909; A61F2002/30957; A61F2002/30971; A61F2002/30975; A61F2002/4635; A61F2/4637; A61F2002/4638; A61F2002/4649; A61F2210/00; A61F2210/0004; A61F2210/0061; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0041; A61F2220/005; A61F2220/0066; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0013; A61F2230/0015; A61F2230/0017; A61F2230/0019; A61F2230/0021; A61F2230/0026; A61F2230/0028; A61F2230/0043; A61F2230/0058; A61F2230/0063; A61F2230/0065; A61F2230/0067; A61F2230/0069; A61F2230/0082; A61F2230/0093; A61F2250/00; A61F2250/0004; A61F2250/0006; A61F2250/0014; A61F2250/0023; A61F2250/0026; A61F2250/0036; A61F2250/0039; A61F2250/0058; A61F2250/006; A61F2250/0063; A61F2250/0085; A61F2250/0089; A61F2250/0096; A61F2250/0097; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00179; A61F2310/00293; A61F2310/00353; B29C33/00; B29C33/20; B29C33/26; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B29L2031/3041
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
43 words
1 . An implant comprising a body having two outer annular members and at least one inner annular member, wherein at least one of the annular members is formed from bone and the annular members are coupled together to define a central chamber.
Claim 2
Dependent Claim
43 words
1 . An implant comprising a body having two outer annular members and at least one inner annular member, wherein at least one of the annular members is formed from bone and the annular members are coupled together to define a central chamber.
Claim 3
Dependent Claim
27 words
2 . The implant of claim 1 , wherein each annular member has at least one surface that is press-fit with the surface of another annular member.
Claim 4
Dependent Claim
31 words
3 . The implant of claim 2 , wherein the outside diameter of the outer annular members is smaller than the outside diameter of the at least one inner annular member.
Claim 5
Dependent Claim
35 words
4 . The implant of claim 2 , wherein the implant is symmetrical about an innermost annular member, the diameter of the implant progressively decreasing from the innermost annular member to each outer annular member.
Claim 6
Dependent Claim
25 words
5 . The implant of claim 2 , wherein the central chamber is packed with at least one of bone material and bone inducing substances.
Claim 7
Dependent Claim
30 words
6 . The implant of claim 2 , wherein at least one annular member is formed of cancellous bone and at least one annular member is formed of cortical bone.
Claim 8
Dependent Claim
24 words
7 . The implant of claim 2 , wherein the annular member bones comprise at least one of autograft, allograft, and xenograft bone tissue.
Claim 9
Dependent Claim
22 words
8 . The implant of claim 7 , wherein the bone tissue of at least one bone is partially demineralized or demineralized.
Claim 10
Dependent Claim
22 words
9 . The implant of claim 2 , wherein a plurality of annular members are coupled together with at least one fastener.
Claim 11
Dependent Claim
41 words
10 . The implant of claim 9 , wherein the at least one fastener is selected from a screw, key, pin, peg, rivet, cotter, nail, spike, bolt, stud, staple, boss, clamp, clip, dowel, stake, hook, anchor, tie, band, crimp, and wedge.
Claim 12
Dependent Claim
21 words
11 . The implant of claim 2 , wherein a plurality of annular members are bonded together with a bonding agent.
Claim 13
Dependent Claim
28 words
12 . The implant of claim 2 , wherein at least one of the annular members is at least partially dehydrated to fit against a surrounding mating surface.
Claim 14
Dependent Claim
27 words
13 . The implant of claim 2 , wherein at least one of the annular members is at least partially dehydrated to mate with another annular member.
Claim 15
Dependent Claim
30 words
14 . The implant of claim 1 , wherein contacting surfaces of adjacent annular members are machined surfaces so that the contour of the contacting surfaces is about the same.
Claim 16
Dependent Claim
20 words
15 . The implant of claim 14 , wherein the machined surfaces permit press-fitting of one sheath into another sheath.
Claim 17
Dependent Claim
24 words
16 . The implant of claim 1 , wherein the annular member bones are selected from a femur, tibia, humerus, fibula, ulna, and radius.
Claim 18
Dependent Claim
14 words
17 . The implant of claim 1 , wherein the annular members are noncircular.
Claim 19
Dependent Claim
15 words
18 . The implant of claim 17 , wherein the annular members are generally oblong.
Claim 20
Dependent Claim
49 words
19 . The implant of claim 1 , further comprising at least one supplemental annular member coupled to at least one of the annular members formed from bone, wherein the at least one supplemental annular member is formed of a material selected from metals, alloys, ceramics, polymers, and composites.
Claim 21
Dependent Claim
18 words
20 . The implant of claim 1 , wherein at least one annular member further comprises alignment indicia.
Claim 22
Dependent Claim
23 words
21 . The implant of claim 1 , wherein adjacent surfaces of at least two annular members do not completely contact each other.
Claim 23
Dependent Claim
25 words
22 . An implant comprising a body having at least two ring-shaped members formed from bone that are coupled together to define a central chamber.
Claim 24
Dependent Claim
25 words
22 . An implant comprising a body having at least two ring-shaped members formed from bone that are coupled together to define a central chamber.
Claim 25
Dependent Claim
19 words
23 . The implant of claim 22 , wherein the ring-shaped members have surfaces that mate and press-fit together.
Claim 26
Dependent Claim
30 words
24 . The implant of claim 22 , further comprising a pair of members each being coupled to a different outermost ring, wherein the chamber is closed on all sides.
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