Bone anchor prosthesis and system

• US 20050059972A1
• Filed: 04/20/2004
• Published: 03/17/2005
• Est. Priority Date: 09/16/2003
• Status: Active Grant

• Current Assignee: Spineco, Inc.
• Original Assignee: Spineco, Inc.
• Inventors: Biscup, Robert S.
• Granted Patent: US 8,070,785 B2
• Time in Patent Office: Days
• US Class Current: 606/308
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/686 Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
• CPC Class Codes: A61B 17/7032 Screws or hooks with U-shaped head or back through which longitudinal rods pass
• CPC Class Codes: A61B 17/7061 for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange intraosseous injection devices A61B17/3472
• CPC Class Codes: A61B 17/7098 wherein the implant is permeable or has openings, e.g. fenestrated screw hollow surgical screws A61B17/864
• CPC Class Codes: A61B 17/8605 Heads, i.e. proximal ends projecting from bone
• CPC Class Codes: A61B 17/864 hollow, e.g. with socket or cannulated
• CPC Class Codes: A61B 17/8685 comprising multiple separate parts
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61F 2310/00389 The prosthesis being coated or covered with a particular material
• CPC Class Codes: A61N 1/326 for promoting growth of cells, e.g. bone cells
• CPC Class Codes: A61N 1/40 Applying electric fields by inductive or capacitive coupling microwave apparatus A61N5/00; Applying radio-frequency signals

Abstract

A prosthetic screw system that includes a prosthetic screw for at least partial insertion into a bone and/or cartilage. The prosthetic screw includes a head and a lower portion connected to the head. The prosthetic screw system also includes a set of head-pieces that can be connected to the head of the prosthetic screw. The head-pieces have differing configurations that are designed to be connected to different types of components of a prosthetic system. The universal connection arrangement between the prosthetic screw and the set of head-pieces enables the prosthetic screw to be customized for connection with a variety of components of a prosthetic system. The head-pieces can alternatively or additionally include a mechanical and/or electrical mechanism that provides one or more substances (e.g., medicine and/or other biological agent, etc.) and/or electrostimulation to a surgical site.

Claims

1. A bone implant system to connect bone and/or cartilage to a support system comprising a set of head-pieces and a screw, nail or post having a head and lower portion, said set of head-pieces including a plurality of head-pieces, each of said head-pieces including a head-piece connector having a substantially similar configuration, a plurality of said head-pieces in said set of head-pieces having a differently configured upper portion designed to connect to differing components of said support system, said head including a head connector designed to connect to said head-piece connector of each of said head-pieces in said set of head-pieces.

2. The bone implant system as defined in claim 1, wherein said head of said screw, nail or post includes a male extension member, each of said head-pieces includes a connection cavity, said male extension member designed to connect to said connection cavity of each of said head-pieces.

3. The bone implant as defined in claim 2, wherein said male extension member includes at least one thread and said connection cavity includes at least one corresponding thread.

4. The bone implant system as defined in claim 1, wherein said head of said screw, nail or post includes a female internal chamber, each of said head-pieces includes an anchor, said female internal chamber designed to connect to said anchor of each of said head-pieces.

5. The bone implant as defined in claim 4, wherein said anchor includes at least one thread and said female internal chamber includes at least one corresponding thread.

6. The bone implant as defined in claim 1, wherein said lower portion includes at least one thread.

7. The bone implant as defined in claim 1, wherein at least one of said head-pieces includes a mechanical mechanism, an electrical mechanism or combinations thereof.

8. The bone implant as defined in claim 7, wherein said lower portion includes at least one interface designed to at least partially discharge an electrical current, a medical substance or combinations thereof.

9. The bone implant as defined in claim 1, wherein said lower portion, head, head-piece or combinations thereof are at least partially including a coating material, said coating material including a compound that facilitates in the insertion and/or securing of the lower portion in said bone and/or cartilage, promotes and/or inhibits bone and/or other tissue growth, inhibits rejection of said bone implant, inhibits rejection of components connected to and/or located adjacent to said bone implant, reduces infection, reduces inflammation, reduces pain, promotes healing of surrounding tissue, combats cancer and/or other diseases, combats biological abnormalities, functions as a location and/or visual indicator or combinations thereof.

10. The bone implant as defined in claim 1, wherein said lower portion, head, head-piece or combinations thereof at least partially includes at least one medical substance.

11. The bone implant as defined in claim 10, wherein said medical substance includes at least one antithrombogenic agent, steroid, thioprotese inhibitor, antimicrobial, antibiotic, tissue plasma activator, monoclonal antibody, antifibrosis compound, hormone, growth factor, anti-mitotic agent, immunosuppressive agent, sense or antisense oligonucleotide, nucleic acid analogue, inhibitor of transcription factor activity, anti-neoplastic compound, chemotherapeutic compound, radioactive agent, growth factor, antiplatlet compound, antitabolite compound, anti-inflammatory compound, anticoagulent compound, antimitotic compound, antioxidant, antimetabolite compound, anti-migratory agent, anti-matrix compound, anti-vital compound, anti-proliferative, anti-fungal compound, anti-protozoal compound, human tissue, animal tissue, synthetic tissue, human cells, animal cells, synthetic cells, bone-stimulation matter, bone-growth matter, bone activating matter or combinations thereof.

12. The bone implant as defined in claim 1, wherein said lower portion, head or combinations thereof are at least partially biodegradable.

13. The bone implant as defined in claim 1, wherein said head-pieces are at least partially biodegradable.

14. The bone implant as defined in claim 1, wherein said head-pieces and said screw, nail or post include a marking to indicate that said head-pieces and said screw, nail or post belong to the same family or type.

15. A set of head-pieces for use in a bone implant system, said set of head-pieces including a plurality of differently shaped head-pieces, each of said head-pieces designed to be connected to a screw, nail, post or combinations thereof, each of said head-pieces having a differently configured upper portion designed to connect to differing components of said support system and a uniform head-piece connector designed to connect to the head of the same screw, nail or post.

16. The set of head-pieces as defined in claim 15, wherein said head-pieces include a marking to indicate that said head-pieces belong a family or type for use with the same family or type of screw, nail or post.

17. The set of head-pieces as defined in claim 15, wherein each of said head-pieces includes a connection cavity designed to receive a male extension member on a screw, nail or post used to connect said head-piece to the screw, nail or post.

18. The set of head-pieces as defined in claim 17, wherein said connection cavity includes at least one thread.

19. The set of head-pieces as defined in claim 15, wherein each of said head-pieces includes an anchor designed to be insertable into a female internal chamber of the screw, nail or post.

20. The set of head-pieces as defined in claim 19, wherein said anchor includes at least one thread.

21. The set of head-pieces as defined in claim 15, wherein at least one of said head-pieces includes a mechanical mechanism, an electrical mechanism or combinations thereof.

22. The set of head-pieces as defined in claim 15, wherein at least one head-piece at least partially includes a coating material, said coating material including a compound that facilitates in the insertion and/or securing of the lower portion in said bone and/or cartilage, promotes and/or inhibits bone and/or other tissue growth, inhibits rejection of said bone implant, inhibits rejection of components connected to and/or located adjacent to said bone implant, reduces infection, reduces inflammation, reduces pain, promotes healing of surrounding tissue, combats cancer and/or other diseases, combats biological abnormalities, functions as a location and/or visual indicator or combinations thereof.

23. The set of head-pieces as defined in claim 15, wherein at least one head-piece at least partially includes at least one medical substance, said medical substance includes at least one antithrombogenic agent, steroid, thioprotese inhibitor, antimicrobial, antibiotic, tissue plasma activator, monoclonal antibody, antifibrosis compound, hormone, growth factor, anti-mitotic agent, immunosuppressive agent, sense or antisense oligonucleotide, nucleic acid analogue, inhibitor of transcription factor activity, anti-neoplastic compound, chemotherapeutic compound, radioactive agent, growth factor, antiplatlet compound, antitabolite compound, anti-inflammatory compound, anticoagulent compound, antimitotic compound, antioxidant, antimetabolite compound, anti-migratory agent, anti-matrix compound, anti-vital compound, anti-proliferative, anti-fungal compound, anti-protozoal compound, human tissue, animal tissue, synthetic tissue, human cells, animal cells, synthetic cells, bone-stimulation matter, bone-growth matter, bone activating matter or combinations thereof.

24. The set of head-pieces as defined in claim 15, wherein at least one head-piece is at least partially biodegradable.

25. A bone implant system to connect bone and/or cartilage to a support system comprising a head-piece and a screw, nail or post having a head and lower portion, said head-piece including a head-piece connector and an upper portion designed to connect to at least one component of said support system, said head including a head connector designed to connect to said head-piece connector, said head-piece and said screw, nail or post including a marking to indicate that said head-piece and said screw, nail or post belong to the same family or type.

26. The bone implant system as defined in claim 25, wherein said head of said screw, nail or post includes a male extension member and said head-piece includes a connection cavity, said male extension member designed to connect to said connection cavity of said head-piece.

27. The bone implant as defined in claim 26, wherein said male extension member includes at least one thread and said connection cavity includes at least one corresponding thread.

28. The bone implant system as defined in claim 25, wherein said head of said screw, nail or post includes a female internal chamber and said head-piece includes an anchor, said female internal chamber designed to connect to said anchor of said head-piece.

29. The bone implant as defined in claim 28, wherein said anchor includes at least one thread and said female internal chamber includes at least one corresponding thread.

30. The bone implant as defined in claim 25, wherein said lower portion includes at least one thread.

31. The bone implant as defined in claim 25, wherein said head-piece includes a mechanical mechanism, an electrical mechanism or combinations thereof.

32. The bone implant as defined in claim 31, wherein said lower portion includes at least one interface designed to at least partially discharge an electrical current, a medical substance or combinations thereof.

33. The bone implant as defined in claim 25, wherein said lower portion, head, head-piece or combinations thereof at least partially include a coating material, said coating material including a compound that facilitates in the insertion and/or securing of the lower portion in said bone and/or cartilage, promotes and/or inhibits bone and/or other tissue growth, inhibits rejection of said bone implant, inhibits rejection of components connected to and/or located adjacent to said bone implant, reduces infection, reduces inflammation, reduces pain, promotes healing of surrounding tissue, combats cancer and/or other diseases, combats biological abnormalities, functions as a location and/or visual indicator or combinations thereof.

34. The bone implant as defined in claim 25, wherein said lower portion, head, head-piece or combinations thereof at least partially include at least one medical substance.

35. The bone implant as defined in claim 34, wherein said medical substance includes at least one antithrombogenic agent, steroid, thioprotese inhibitor, antimicrobial, antibiotic, tissue plasma activator, monoclonal antibody, antifibrosis compound, hormone, growth factor, anti-mitotic agent, immunosuppressive agent, sense or antisense oligonucleotide, nucleic acid analogue, inhibitor of transcription factor activity, anti-neoplastic compound, chemotherapeutic compound, radioactive agent, growth factor, antiplatlet compound, antitabolite compound, anti-inflammatory compound, anticoagulent compound, antimitotic compound, antioxidant, antimetabolite compound, anti-migratory agent, anti-matrix compound, anti-vital compound, anti-proliferative, anti-fungal compound, anti-protozoal compound, human tissue, animal tissue, synthetic tissue, human cells, animal cells, synthetic cells, bone-stimulation matter, bone-growth matter, bone activating matter or combinations thereof.

36. The bone implant as defined in claim 25, wherein said lower portion, head, head-piece or combinations thereof are at least partially biodegradable.

37. The bone implant as defined in claim 25, including a sleeve designed to at least partially telescopically receive said lower portion.

38. A head-piece for use in a bone implant system, said head-piece designed to be connected to a screw, nail, post or combinations thereof, said head-piece having an upper portion designed to connect to at least one component of a support system and a head-piece connector designed to connect to the head of a screw, nail or post, said head-piece including a marking to indicate that said head-piece belongs to a family or type for use with the same family or type of screw, nail or post.

39. The head-piece as defined in claim 38, including a connection cavity designed to receive a male extension member on a screw, nail or post used to connect said head-piece to the screw, nail or post.

40. The head-piece as defined in claim 39, wherein said connection cavity includes at least one thread.

41. The head-piece as defined in claim 38, including an anchor designed to be insertable into a female internal chamber of the screw, nail or post.

42. The head-piece as defined in claim 41, wherein said anchor includes at least one thread.

43. The head-piece as defined in claim 38, including a mechanical mechanism, an electrical mechanism or combinations thereof.

44. The head-piece as defined in claim 38, wherein said head-piece at least partially including a coating material, said coating material including a compound that facilitates in the insertion and/or securing of the lower portion in said bone and/or cartilage, promotes and/or inhibits bone and/or other tissue growth, inhibits rejection of said bone implant, inhibits rejection of components connected to and/or located adjacent to said bone implant, reduces infection, reduces inflammation, reduces pain, promotes healing of surrounding tissue, combats cancer and/or other diseases, combats biological abnormalities, functions as a location and/or visual indicator or combinations thereof.

45. The head-piece as defined in claim 38, wherein said head-piece at least partially including at least one medical substance, said medical substance includes at least one antithrombogenic agent, steroid, thioprotese inhibitor, antimicrobial, antibiotic, tissue plasma activator, monoclonal antibody, antifibrosis compound, hormone, growth factor, anti-mitotic agent, immunosuppressive agent, sense or antisense oligonucleotide, nucleic acid analogue, inhibitor of transcription factor activity, anti-neoplastic compound, chemotherapeutic compound, radioactive agent, growth factor, antiplatlet compound, antitabolite compound, anti-inflammatory compound, anticoagulent compound, antimitotic compound, antioxidant, antimetabolite compound, anti-migratory agent, anti-matrix compound, anti-vital compound, anti-proliferative, anti-fungal compound, anti-protozoal compound, human tissue, animal tissue, synthetic tissue, human cells, animal cells, synthetic cells, bone-stimulation matter, bone-growth matter, bone activating matter or combinations thereof.

46. The head-piece as defined in claim 38, wherein said head-piece is at least partially biodegradable.

47. A method of at least partially inserting a connector into a bone and/or cartilage comprising:

a) selecting a connector belonging to a particular family, said connector including a bone screw, nail or post having a head and a lower portion connected to the head, said head including at least one head connector;

b) selecting a head-piece belonging to the same family as said connector, said head-piece including a bottom portion and an upper portion, said bottom portion including a head-piece connector;

c) at least partially inserting said connector into said bone and/or cartilage;

d) connecting said connector to said head-piece by said head connector and said head-piece connector; and

,

e) securing a component of a support system to said upper portion of said head-piece.

48. The method as defined in claim 47, including the step of inserting a sleeve into an opening in a bone and subsequently inserting the lower portion of said screw, nail or post into a cavity in the sleeve.

49. A method of at least partially inserting a connector into a bone and/or cartilage comprising:

a) selecting a connector belonging to a particular family, said connector including a bone screw, nail or post having a head and a lower portion connected to the head;

b) selecting a sleeve that includes a cavity designed to at least partially telescopically receive said lower portion of said connector;

c) forming an opening in said bone and/or cartilage;

d) at least partially inserting said sleeve into an opening in the bone and/or cartilage inserting a sleeve into said opening in said bone and/or cartilage; and

,

e) at least partially inserting said lower portion of said connector into said cavity of said sleeve.

50. The method as defined in claim 49, wherein said head of said connector includes at least one head connector, and including the step of connecting said head connector to a head-piece, said head-piece including a mechanical mechanism, and electrical mechanism, a connector to secure at least one component of a support system, or combinations thereof.

51. The method as defined in claim 49, including the step allowing a period of time to pass after said sleeve is inserted in said opening in said bone and/or cartilage and prior to said lower portion of said implant being at least partially inserted and secured into said chamber of said sleeve, said period of time enabling said sleeve to at least partially set in said opening in said bone before said lower portion of said implant is at least partially inserted and secured into said chamber of said sleeve.

52. The method as defined in claim 51, wherein said period of time is at least about 1 week.

53. The method as defined in claim 49, wherein said step of inserting said sleeve is performed on an outpatient basis.