Claims
- 1. A modular prosthesis, comprising:
a stem member having an elongated bore and a threaded aperture defined therein, wherein (i) said stem member has a proximal end surface which has a post-receiving opening defined therein, (ii) said elongated bore extends between said post-receiving opening and said threaded aperture, and (iii) said elongated bore is continuously tapered from said post-receiving opening to said threaded aperture; and a neck member having (i) a neck body, (ii) a head-receiving support member secured to said neck body so as to extend outwardly therefrom, and (iii) a tapered post secured to said neck body so as to extend outwardly therefrom, wherein said tapered post is adapted to be received into said elongated bore of said stem member.
- 2. The modular prosthesis of claim 1, wherein:
said tapered post of said neck member has a proximal end and a distal end, said proximal end of said tapered post is secured to said neck body, and said tapered post is continuously tapered from said proximal end thereof to said distal end thereof.
- 3. The modular prosthesis of claim 2, wherein:
said proximal end of said tapered post has a first cross sectional diameter, said distal end of said tapered post has a second cross sectional diameter, and said first cross sectional diameter is greater than said second cross sectional diameter.
- 4. The modular prosthesis of claim 1, wherein:
said stem member includes a sidewall, said elongated bore is defined in said sidewall, and an outer surface of said tapered post of said neck member contacts said sidewall of said stem member when said tapered post of said neck member is received into said elongated bore of said stem member.
- 5. The modular prosthesis of claim 1, further comprising a head member, wherein said head member is secured to said head-receiving support member of said neck body.
- 6. The modular prosthesis of claim 1, wherein each of said neck body, said head-receiving support member, and said tapered post is integrally formed with one another.
- 7. The modular prosthesis of claim 1, further comprising a shoulder member secured to said neck member.
- 8. A modular femoral prosthesis, comprising:
a stem member adapted to be implanted into a medullary canal of a femur, said stem member having (i) a continuously tapered elongated bore, and (ii) a threaded aperture defined therein, wherein (i) a first end of said elongated bore defines a post-receiving opening, (ii) said post-receiving opening being defined in a proximal end surface of said stem member, and (iii) said continuously tapered elongated bore extends between said post-receiving opening and a threaded aperture; and a neck member having (i) a neck body, (ii) a head-receiving support member secured to said neck body so as to extend outwardly therefrom, and (iii) a tapered post secured to said neck body so as to extend outwardly therefrom, wherein said tapered post is adapted to be received into said continuously tapered elongated bore of said stem member.
- 9. The femoral prosthesis of claim 8, wherein:
said tapered post of said neck member has a proximal end and a distal end, said proximal end of said tapered post is secured to said neck body, and said tapered post is continuously tapered from said proximal end thereof to said distal end thereof.
- 10. The femoral prosthesis of claim 9, wherein:
said proximal end of said tapered post has a first cross sectional diameter, said distal end of said tapered post has a second cross sectional diameter, and said first cross sectional diameter is greater than said second cross sectional diameter.
- 11. The femoral prosthesis of claim 8, wherein:
said stem member includes a sidewall, said continuously tapered elongated bore is defined in said sidewall, and an outer surface of said tapered post of said neck member contacts said sidewall of said stem member when said tapered post of said neck member is received into said continuously tapered elongated bore of said stem member.
- 12. The femoral prosthesis of claim 8, further comprising a head member, wherein said head member is secured to said head-receiving support member of said neck body.
- 13. The femoral prosthesis of claim 8, wherein each of said neck body, said head-receiving support member, and said tapered post is integrally formed with one another.
- 14. The femoral prosthesis of claim 8, further comprising a shoulder member secured to said neck member.
- 15. A method of performing a joint replacement procedure by use of a modular prosthesis which includes (i) a neck member which has (a) a neck body, (b) a head-receiving support member secured to said neck body so as to extend outwardly therefrom, and (c) a tapered post secured to said neck body so as to extend outwardly therefrom, and (ii) a stem member which has an elongated bore and a threaded aperture defined therein, said method comprising the steps of:
advancing said tapered post into a post-receiving opening defined in a proximal end surface of said stem member, wherein (i) said post-receiving opening defines a proximal end of said elongated bore, (ii) said threaded aperture defines a distal end of said elongated bore, and (iii) said elongated bore is continuously tapered from said post-receiving opening to said threaded aperture; and implanting said stem member into a bone.
- 16. The method of claim 15, wherein:
said tapered post of said neck member has a proximal end and a distal end, said proximal end of said tapered post is secured to said neck body, said tapered post is continuously tapered from said proximal end thereof to said distal end thereof, and said advancing step includes the step of advancing distal end of said tapered post into said post-receiving opening.
- 17. The method of claim 15, wherein:
said stem member includes a sidewall, said elongated bore is defined in said sidewall, and said advancing step includes the step of advancing said tapered post into said post-receiving opening such that an outer surface of said tapered post contacts said sidewall of said stem member.
- 18. The method of claim 15, further comprising the step of securing a head member to said head-receiving support member of said neck body.
- 19. The method of claim 15, further comprising the step of securing a shoulder member to said neck member prior to said implanting step.
- 20. A modular prosthesis, comprising:
a neck member having an elongated bore and a threaded aperture defined therein, wherein (i) said neck member has a distal end surface which has a post-receiving opening defined therein, (ii) said elongated bore extends between said post-receiving opening and said threaded aperture, and (iii) said elongated bore is continuously tapered from said post-receiving opening to said threaded aperture; and a stem member having a tapered post which is configured to be received in said elongated bore of said stem member.
- 21. The modular prosthesis of claim 20, wherein:
said tapered post of said stem member has a proximal end and a distal end, and said tapered post is continuously tapered from said proximal end thereof to said distal end thereof.
- 22. The modular prosthesis of claim 21, wherein:
said proximal end of said tapered post has a first cross sectional diameter, said distal end of said tapered post has a second cross sectional diameter, and said second cross sectional diameter is greater than said first cross sectional diameter.
- 23. The modular prosthesis of claim 20, wherein:
said neck member includes an inner sidewall, said elongated bore is defined in said inner sidewall, and an outer surface of said tapered post of said stem member contacts said inner sidewall of said neck member when said tapered post of said stem member is received into said elongated bore of said neck member.
- 24. The modular prosthesis of claim 20, further comprising a head member, wherein:
said neck member further has a head-receiving support member, and said head member is secured to said head-receiving support member.
- 25. A modular prosthesis, comprising:
a first prosthetic component having an elongated bore and a threaded aperture defined therein, wherein (i) said first prosthetic component has an end surface which has a post-receiving opening defined therein, (ii) said elongated bore extends between said post-receiving opening and said threaded aperture, and (iii) said elongated bore is continuously tapered from said post-receiving opening to said threaded aperture; and a second prosthetic component having a tapered post which is configured to be received in said elongated bore of said first prosthetic component.
- 26. The modular prosthesis of claim 25, wherein:
said first prosthetic component includes a stem member, and said second prosthetic component includes a neck member.
- 27. The modular prosthesis of claim 25, wherein:
said first prosthetic component includes a neck member, and said second prosthetic component includes a stem member.
PROVISIONAL PATENT APPLICATION
[0001] This application claims the benefit of U.S. Provisional Application Serial No. 60/246,854, filed Nov. 8, 2000. The disclosure of the above-identified provisional patent application is hereby totally incorporated by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60246854 |
Nov 2000 |
US |