Modular bone plate system

• US 8,343,154 B2
• Filed: 09/26/2007
• Issued: 01/01/2013
• Est. Priority Date: 09/26/2007
• Status: Active Grant

• Current Assignee: Biomet Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Incorporated (Zimmer Biomet Holdings, Inc.)
• Inventors: Long, Jack F., Marbaugh, Kelly R., Huffman, Bart R.
• Primary Examiner(s): Truong, Kevin T
• Assistant Examiner(s): Waggle, Jr., Larry E
• Application Number:
  US11/904,078
• Publication Number:
  US 20090082813A1
• Time in Patent Office: 1,924 Days
• Field of Search: 294/28, 294/46, 294/53, 59/78, 59 84- 93, 59/95, 474/206, 606 70- 71, 606151-158, 606280-299, 606902-906
• US Class Current: 606/71
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 17/8052 immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
• CPC Class Codes: A61B 17/8057 the interlocking form comprising a thread
• CPC Class Codes: A61B 17/8085 with pliable or malleable elements or having a mesh-like structure, e.g. small strips A61B17/8071, A61B17/8076 take precedence
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: Y10T 29/49778 with aligning, guiding, or instruction

Abstract

A modular bone plating system in one embodiment is a bone plate kit including a plurality of bone plates, each of the plurality of bone plates including a male coupling portion, a female coupling portion and a shaft extending between the male coupling portion and the female coupling portion, wherein each of the male coupling portions of each of the plurality of bone plates is configured to couple with each of the female coupling portions of each of the other of the plurality of bone plates.

Claims

1. A bone plate kit, comprising:

a plurality of bone plate modules including (i) a first bone plate module having a first male coupling portion, a first female coupling portion, and a first shaft extending therebetween, and (ii) a second bone plate module having a second male coupling portion, a second female coupling portion, and a second shaft extending therebetween; and

at least one bone fastener having a fastener head and a fastener shaft,

wherein said first male coupling portion includes (i) a first base defining a first fastener passage, and (ii) a first receptacle structure extending from said first base, said first receptacle structure including a first tapered inner receptacle surface that tapers toward said first fastener passage so as to define a first fastener head space, said first receptacle structure further including a first outer receptacle surface having a first snap-fit mating feature,

wherein said first female coupling portion includes a first bore structure having a first inner bore surface that defines a first bore, and said first inner bore surface having a second snap-fit mating feature,

wherein said second male coupling portion includes (i) a second base defining a second fastener passage, and (ii) a second receptacle structure extending from said second base, said second receptacle structure including a second inner receptacle surface that tapers toward said second fastener passage so as to define a second fastener head space, said second receptacle structure further including a second outer receptacle surface having a third snap-fit mating feature,

wherein said second female coupling portion includes a second bore structure having a second inner bore surface that defines a second bore, and said second inner bore surface having a fourth snap-fit mating feature,

wherein said first receptacle structure is received within said second bore so that said first snap-fit mating feature mates with said fourth snap-fit mating feature to secure said first male coupling portion to said second female coupling portion,

wherein, when said first snap-fit mating feature is mated with said fourth snap-fit mating feature to secure said first male coupling portion to said second female coupling portion, said first tapered inner receptacle surface is located within said second bore,

wherein said fastener head is located within one of said first fastener head space and said second fastener head space, and

wherein said fastener shaft extends through one of said first fastener passage and said second fastener passage.

2. The bone plate kit of claim 1, wherein:

said first snap-fit mating feature includes one of a first ridge and a first recess, and

said fourth snap-fit mating feature includes the other of said first ridge and said first recess.

3. The bone plate kit of claim 2, wherein:

said second snap-fit mating feature includes one of a second ridge and a second recess, and

said third snap-fit mating feature includes the other of said second ridge and said second recess.

4. The bone plate kit of claim 1, wherein each of said first fastener passage and said second fastener passage is internally threaded.

5. The bone plate kit of claim 1, wherein:

said first receptacle structure includes a first receptacle structure portion and a second receptacle structure portion that are spaced apart from each other to define a first slot and a second slot, and

said first receptacle structure is configured so that said first receptacle structure portion and said second receptacle structure portion are urged toward each other when mating said first snap-fit mating feature with said fourth snap-fit mating feature.

6. The bone plate kit of claim 1, wherein, when said fastener head is located within said second fastener head space, said fastener head is positioned adjacent to said second tapered inner receptacle surface.

7. The bone plate kit of claim 1, wherein:

said first receptacle structure defines an upper rim, and

said first tapered inner receptacle surface extends from said upper rim toward said first fastener passage.

8. The bone plate kit of claim 7, wherein said upper rim is located within said bore when said first snap-fit mating feature is mated with said fourth snap-fit mating feature.

9. The bone plate kit of claim 7, wherein said first snap-fit mating feature extends around said first tapered inner receptacle surface.

10. A bone plate kit, comprising:

a plurality of bone plate modules including (i) a first bone plate module having a first male coupling portion, a first female coupling portion, and a first shaft extending therebetween, and (ii) a second bone plate module having a second male coupling portion, a second female coupling portion, and a second shaft extending therebetween; and

at least one bone fastener having a fastener head and a fastener shaft,

wherein said first male coupling portion includes (i) a first base defining a first fastener passage, and (ii) a first receptacle structure extending from said first base, said first receptacle structure including a first tapered inner receptacle surface that tapers toward said first fastener passage so as to define a first fastener head space, said first receptacle structure further including a first outer receptacle surface having a first snap-fit mating feature,

wherein said second female coupling portion includes a second bore structure having a second inner bore surface that defines a second bore, and said second inner bore surface having a fourth snap-fit mating feature,

wherein said first receptacle structure is received within said second bore so that said first snap-fit mating feature mates with said fourth snap-fit mating feature to secure said first male coupling portion to said second female coupling portion,

wherein, when said first snap-fit mating feature is mated with said fourth snap-fit mating feature to secure said first male coupling portion to said second female coupling portion, said first tapered inner receptacle surface is located within said second bore,

wherein said fastener head is located within one of said first fastener head space and said second fastener head space, and

wherein said fastener shaft extends through one of said first fastener passage and said second fastener passage.

11. The bone plate kit of claim 10, wherein:

said first snap-fit mating feature includes one of a first ridge and a first recess, and

said fourth snap-fit mating feature includes the other of said first ridge and said first recess.

12. The bone plate kit of claim 10, wherein each of said first fastener passage and said second fastener passage is internally threaded.

13. The bone plate kit of claim 10, wherein:

said first receptacle structure includes a first receptacle structure portion and a second receptacle structure portion that are spaced apart from each other to define a first slot and a second slot, and

said first receptacle structure is configured so that said first receptacle structure portion and said second receptacle structure portion are urged toward each other when mating said first snap-fit mating feature with said fourth snap-fit mating feature.

14. The bone plate kit of claim 10, wherein, when said fastener head is located within said second fastener head space, said fastener head is positioned adjacent to said second tapered inner receptacle surface.

15. The bone plate kit of claim 10, wherein:

said first receptacle structure defines an upper rim, and

said first tapered inner receptacle surface extends from said upper rim toward said first fastener passage.

16. The bone plate kit of claim 15, wherein said upper rim is located within said bore when said first snap-fit mating feature is mated with said fourth snap-fit mating feature.

17. The bone plate kit of claim 10, wherein said first snap-fit mating feature extends around said first tapered inner receptacle surface.