WO1998046169B1 - Bone-growth promoting implant - Google Patents

Bone-growth promoting implant

Info

Publication number
WO1998046169B1
WO1998046169B1 PCT/IB1998/000820 IB9800820W WO9846169B1 WO 1998046169 B1 WO1998046169 B1 WO 1998046169B1 IB 9800820 W IB9800820 W IB 9800820W WO 9846169 B1 WO9846169 B1 WO 9846169B1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
interface portion
deformable
support structure
implant
Prior art date
Application number
PCT/IB1998/000820
Other languages
French (fr)
Other versions
WO1998046169A1 (en
Filing date
Publication date
Priority claimed from US08/842,680 external-priority patent/US7255712B1/en
Application filed filed Critical
Priority to JP54367298A priority Critical patent/JP2001519704A/en
Priority to EP98919435A priority patent/EP0977524A4/en
Priority to IL13222898A priority patent/IL132228A0/en
Priority to CA002286706A priority patent/CA2286706A1/en
Priority to AU72297/98A priority patent/AU7229798A/en
Publication of WO1998046169A1 publication Critical patent/WO1998046169A1/en
Publication of WO1998046169B1 publication Critical patent/WO1998046169B1/en

Links

Abstract

A stem-like bone implant (10) includes longitudinal structural members (16A) and tension cables (31) that provide curvature control, support and rigidity against bending and buckling. The longitudinal structural members (16A) and tension cables (31) may become an integral part of a composite regenerated bone having a substantially increased strength over natural bone. The flexibility of the implant (10) is controlled by specifically varying the structural geometry of certain portions of the implant and by adjusting the tension in the tension cables (31) before, during and after the implantation operation to thereby adjust the stiffness of the implant. The tension cables (31) may be adjusted to produce asymmetric or non-uniform levels of tension in the longitudinal structural members (16A).

Claims

AMENDED CLAIMS
[received by the International Bureau on 30 October 1998 (30.10.98); original claims 1-3 cancelled; original claims 4-8, 12, 14 and 18 amended remaining claims unchanged (4 pages)]
4. A deformable bone implant comprising: an interface portion for interfacing with a bone,- and a support structure for supporting the interface portion, wherein the support structure is comprised of a mesh of fibers or wires arranged to have opens areas within the mesh.
5. A deformable bone implant comprising; an interface portion for interfacing with a bone; and a support structure for supporting the interface portion, wherein the support structure is comprised of at least one helical spring element.
6. A deformable bone implant comprising: an interface portion for interfacing with a bone; and a support structure for supporting the interface portion, wherein the support structure is formed of at least two types of materials each having a different Young's modulus, and the at least two types of materials are arranged to provide a varying Young's modulus along a longitudinal axis of the support structure.
7. A deformable bone implant comprising:
48 an interface portion for interfacing with a bone; and a support structure for supporting the interface portion, wherein the support structure comprises an inflatable portion.
8. A deformable bone implant comprising: an interface portion for interfacing with a bone; and a support structure for supporting the interface portion, wherein the interface portion comprises a plurality of support elements protruding therefrom.
9. A deformable bone implant according to claim 8, wherein at least a portion of each of the plurality of support elements is resiliently deformable.
10. A deformable bone implant according to claim 8, wherein at least one of the plurality of support elements is adapted to fit snugly within a bone canal .
11. A deformable bone implant according to claim 8, wherein the plurality of support elements comprises protrusions that resiliently deform and deflect during insertion of the bone implant into a bone canal such that the plurality of support elements exerts a force against a wall of the bone canal and the implant fits snugly within the bone canal .
12. A deformable bone implant comprising: an interface portion for interfacing with a bone; a support structure for supporting the interface portion; and an adjustable cable for adjusting a tension in the support structure to thereby adjust stiffness and/or curvature of the implant.
13. A deformable bone implant according to claim 12, wherein the adjustable cable is supported by at least one bridge element .
14. A deformable bone implant comprising-. an interface portion for interfacing with a bone; a support structure for supporting the interface portion; and a plurality of adjustable cables for adjusting a tension in the support structure to thereby adjust stiffness and/or curvature of the implant.
15. A deformable bone implant according to claim 14, wherein the adjustable cables are adjusted to provide an asymmetric or non-uniform level of tension to the plurality of adjustable cables.
16. A deformable bone implant according to claim 14, wherein the adjustable cables are adjusted before, during, and/or after implantation of the bone implant.
17. A deformable bone implant according to claim 14, wherein the adjustable cables are adjusted to provide a variable rigidity to the bone implant.
18. A deformable bone implant comprising: an interface portion for interfacing with a bone; and a support structure for supporting the interface portion, wherein the interface portion contains at least one type of prescribed medication that is administered into a bone canal of the bon .
19. A deformable bone implant according to claim
18, wherein the interface portion is coated with a material selected from the group consisting essentially of a hydroxyapatite-based substance, a porous bone substance, an inorganic bovine bone substance, an osteoconductive bone graft substitute, and a synthetic bone graft substitute.
20. A deformable bone implant according to claim
19, wherein the material contains a bone morphogenic protein and/ r medication for preventing bone diseases.
21. A bone brace, comprising:
51
PCT/IB1998/000820 1997-04-15 1998-04-14 Bone-growth promoting implant WO1998046169A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP54367298A JP2001519704A (en) 1997-04-15 1998-04-14 Bone growth promoting implant
EP98919435A EP0977524A4 (en) 1997-04-15 1998-04-14 Bone-growth promoting implant
IL13222898A IL132228A0 (en) 1997-04-15 1998-04-14 Bone-growth promoting implant
CA002286706A CA2286706A1 (en) 1997-04-15 1998-04-14 Bone-growth promoting implant
AU72297/98A AU7229798A (en) 1997-04-15 1998-04-14 Bone-growth promoting implant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/842,680 US7255712B1 (en) 1997-04-15 1997-04-15 Bone growth promoting implant
US08/842,680 1997-04-15

Publications (2)

Publication Number Publication Date
WO1998046169A1 WO1998046169A1 (en) 1998-10-22
WO1998046169B1 true WO1998046169B1 (en) 1998-12-23

Family

ID=25287980

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000820 WO1998046169A1 (en) 1997-04-15 1998-04-14 Bone-growth promoting implant

Country Status (7)

Country Link
US (2) US7255712B1 (en)
EP (1) EP0977524A4 (en)
JP (1) JP2001519704A (en)
AU (1) AU7229798A (en)
CA (1) CA2286706A1 (en)
IL (1) IL132228A0 (en)
WO (1) WO1998046169A1 (en)

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