CA2654570A1 - Sac for use in spinal surgery - Google Patents

Sac for use in spinal surgery Download PDF

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Publication number
CA2654570A1
CA2654570A1 CA002654570A CA2654570A CA2654570A1 CA 2654570 A1 CA2654570 A1 CA 2654570A1 CA 002654570 A CA002654570 A CA 002654570A CA 2654570 A CA2654570 A CA 2654570A CA 2654570 A1 CA2654570 A1 CA 2654570A1
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CA
Canada
Prior art keywords
sac
bone
spine
sections
filling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002654570A
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French (fr)
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CA2654570C (en
Inventor
Francis Pflum
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Individual
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Individual
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/441—Joints for the spine, e.g. vertebrae, spinal discs made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
    • A—HUMAN NECESSITIES
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    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30032—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in absorbability or resorbability, i.e. in absorption or resorption time
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30075—Properties of materials and coating materials swellable, e.g. when wetted
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30252—Three-dimensional shapes quadric-shaped
    • A61F2002/30253—Three-dimensional shapes quadric-shaped ellipsoidal or ovoid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30581—Special structural features of bone or joint prostheses not otherwise provided for having a pocket filled with fluid, e.g. liquid
    • A61F2002/30583—Special structural features of bone or joint prostheses not otherwise provided for having a pocket filled with fluid, e.g. liquid filled with hardenable fluid, e.g. curable in-situ
    • A—HUMAN NECESSITIES
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    • A61F2/02—Prostheses implantable into the body
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    • A—HUMAN NECESSITIES
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    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
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Abstract

A method for fusing spinal bone is provided. The method comprises placing a sac between two or more adjacent sections of the spine to be fused, and filling the sac with bone tissue. The surfaces of the sac abutting the sections of the spine comprise porous material for allowing bone to grow between the spine and the sac. Surfaces of the sac not abutting the sections of the spine are nonporous to bodily fluids and thereby prevent premature deterioration of the bone tissue inside the sac. A sac for fusing spinal bone and a kit comprising the sac are also provided.

Claims (29)

1. A method for fusing spinal bone, the method comprising the steps of:
(a) placing a sac between two or more adjacent sections of the spine to be fused, wherein the surface of the sac abutting the sections of the spine comprises porous material for allowing bone to grow between the spine and the sac, and the surface of the sac not abutting the sections of the spine is nonporous to bodily fluids; and (b) filling the sac with bone tissue.
2. The method according to claim 1, wherein the sections of the spine are vertebra.
3. The method according to claim 1, wherein the sections of the spine are sections of the lumbar spine, cervical spine, or both.
4. The method according to claim 1, wherein the bone tissue comprises bone chips, bone fragments, osteocytes, bone cement, cartilage chips, cartilage-forming material, or combinations thereof.
5. The method according to claim 1, wherein the sac further comprises an inorganic bone growth support.
6. The method according to claim 3, wherein the inorganic bone growth support is calcium phosphate.
7. The method according to claim 1, wherein the sac further comprises a hydrogel.
8. The method according to claim 1, wherein step (b) is performed before step (a).
9. The method according to claim 1, wherein the sac is bio-resorbable or non-bioresorbable.
10. The method according to claim 1, wherein the sac is flexible or rigid.
11. The method according to claim 1, wherein the sac has the general appearance of a pill.
12. The method according to claim 1, wherein the sac is formed from a synthetic material, a natural material, or both.
13. The method according to claim 1, wherein the sac further comprises a rigid structural element for maintaining the sac in an expanded state upon filling.
14. The method according to claim 13, wherein the rigid element is opaque to medical imaging equipment.
15. The method according to claim 1, wherein the surfaces of the sac abutting the sections of the spine are flat.
16. The method according to claim 1, wherein the height of the sac generally corresponds to the distance between the sections of the spine to be fused.
17. The method according to claim 1, wherein the method is performed during an endoscopic or arthroscopic surgery procedure.
18. A sac for fusing spinal bone, the sac having generally flat upper and lower surfaces and a peripheral surface between the upper and lower surfaces, the surfaces defining an interior volume intended to be filled with bone tissue, wherein the upper and lower surfaces of the sac are porous to bone ingrowth and the peripheral surface is nonporous to bodily fluids.
19. The sac according to claim 18, wherein the sac is bio-resorbable or non-bioresorbable.
20. The sac according to claim 18, further comprising a rigid structural element for maintaining the sac in an expanded state upon filling.
21. The sac according to claim 20, wherein the rigid structural element is opaque to medical imaging equipment.
22. The sac according to claim 18, wherein the bone tissue comprises bone chips, bone fragments, osteocytes, bone cement, cartilage chips, cartilage-forming material, or combinations thereof.
23. The sac according to claim 18, wherein the sac comprises a hydrogel.
24. The sac according to claim 18, wherein the sac has the overall appearance of a pill.
25. The sac according to claim 18, wherein the upper surface of the sac, the lower surface of the sac, or both, are generally non-rectilinear, round, or oblate.
26. The sac according to claim 18, wherein the sac is formed from a synthetic material, a natural material, or combination of both.
27. A kit comprising:
(a) the sac according to claim 18; and (b) an device for filling the sac.
28. The kit according to claim 27, wherein the device for filling the sac is a disposable or reusable syringe or cannula.
29. The kit according to claim 27, further comprising bone tissue.
CA2654570A 2006-06-08 2007-06-07 Sac for use in spinal surgery Active CA2654570C (en)

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PCT/US2007/070602 WO2007146738A2 (en) 2006-06-08 2007-06-07 Sac for use in spinal surgery

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US20070299523A1 (en) 2007-12-27
WO2007146738A2 (en) 2007-12-21
US20130090734A1 (en) 2013-04-11
WO2007146738A3 (en) 2008-07-17
CA2654570C (en) 2012-08-21
US8226722B2 (en) 2012-07-24

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