Bone graft delivery surgical instruments

• US 6,309,395 B1
• Filed: 04/25/2000
• Issued: 10/30/2001
• Est. Priority Date: 11/09/1994
• Status: Expired due to Fees

• Current Assignee: Howmedica Osteonics Corp. (Stryker Corporation)
• Original Assignee: Howmedica Osteonics Corp. (Stryker Corporation)
• Inventors: Cusick, Michael J., Smith, Margaret E.
• Primary Examiner(s): Hirsch, Paul J.
• Assistant Examiner(s): Priddy, Michael B.
• Application Number:
  US09/557,145
• Time in Patent Office: 553 Days
• Field of Search: 606/86, 606/92-95, 606/181, 606/218
• US Class Current: 606/92
• CPC Class Codes: A61B 17/8822 characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
• CPC Class Codes: A61F 2/30723 Plugs or restrictors for sealing a cement-receiving space tools for inserting plugs A61F2/4614; sealing collars for use during cementing A61B17/8808
• CPC Class Codes: A61F 2/30724 Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
• CPC Class Codes: A61F 2/3676 Distal or diaphyseal parts of shafts
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/4607 of hip femoral endoprostheses
• CPC Class Codes: A61F 2/4684 Trial or dummy prostheses
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/4631 the prosthesis being specially adapted for being cemented

Abstract

A kit of surgical instruments comprises a plurality of differently sized/shaped hollow tubes constructed to receive bone graft, and a plurality of differently sized and/or shaped plungers to be inserted into the hollow tube. A surgeon may select a hollow tube and plunger which correspond based upon the size and shape of the graft receiving area and the prosthesis to be implanted. The plungers are further constructed and arranged so that when the hollow tube is moved in a direction away from a graft receiving area, the bone graft is delivered to the graft receiving area. A set of modular plunger portions may be included for constructing a plunger corresponding to a tube.

Claims

1. A kit of surgical instruments comprising a plurality of differently sized and/or shaped hollow tubes and a plurality of differently sized and/or shaped plungers, each of said plungers corresponding to at least one of said hollow tubes, whereby a surgeon may select a hollow tube and a corresponding plunger, said selected hollow tube and said corresponding plunger corresponding with one another depending upon the size and shape of the graft receiving area and the prosthesis to be implanted at such area, said hollow tubes and said plungers being constructed and arranged such that bone graft can be placed within said selected hollow tube with said corresponding plunger, and said selected hollow tube can be moved away from a graft receiving area to leave the graft and said corresponding plunger at such area.

2. The kit of surgical instruments in claim 1, further comprising a plurality of differently sized and/or shaped graft retaining structures, each corresponding to at least one of said hollow tubes and at least one of said plungers.

3. The kit of surgical instruments of claim 1, wherein each plunger of said plungers is constructed and arranged with respect to at least one of said hollow tubes so as to form a positive impression in the bone graft when the bone graft and said each plunger are within said at least one of said the hollow tubes.

4. The kit of surgical instruments of claim 3, wherein each plunger of said plungers is constructed and arranged so that when one of said hollow tubes is moved in a direction away from a graft receiving area, the bone graft is delivered to the graft receiving area with the same positive impression as that formed within said one of said hollow tubes.

5. The kit of surgical instruments of claim 1, wherein each plunger of said plungers includes an elongated rod portion.

6. The kit of surgical instruments of claim 1, further comprising at least one tamp having a configuration which at least in part corresponds in shape to at least a portion of a prosthesis.

7. The kit of surgical instruments of claim 1, further comprising positioning structure at least one of said plungers to maintain said at least one of said plungers in a desirable position with respect to one of said hollow tubes.

8. The kit of surgical instruments of claim 1, wherein at least one of said plungers includes a centralizing cap and a centralizing collar at one end of said at least one of said plungers.

9. The kit of surgical instruments of claim 1, further comprising adjunct positioning means associated with at least one of said plungers to ensure that said at least one of said plungers remains in a desirable position during the packing of bone graft into the hollow tube.

10. The kit of surgical instruments of claim 1, wherein one or more of said hollow tubes are disposable.

11. The kit of instruments of claim 1, further comprising an extractor to facilitate the controlled movement of a tube, while leaving one of said plungers substantially in position, the extractor including a housing, a connector for connecting the housing to the tube, a stem movable within the housing for applying pressure to said one of said plungers in its arranged position, and actuating means for applying pressure.

12. The kit of instruments of claim 11, wherein the extractor further comprises a rod-engaging portion sized to engage one of said plungers in a tube and to permit the tube to be withdrawn from around said one of said plungers so that the tube is disposed around the stem.

13. The kit of instruments of claim 1, further comprising a bone graft packer.

14. A kit of surgical instruments comprising a plurality of differently sized and/or shaped hollow tubes and a plurality of differently sized and/or shaped plunger portions, the plunger portions being connectable to form a modular plunger for each of the hollow tubes, whereby a surgeon may select a hollow tube and construct a modular plunger from said plunger portions which corresponds with said selected hollow tube depending upon the size and shape of the graft receiving area and the prosthesis to be implanted at such area, said selected hollow tube and said plunger portions being constructed and arranged such that bone graft can be placed within said selected hollow tube with said modular plunger, and said selected hollow tube can be moved away from a graft receiving area to leave the graft and said modular plunger at such area.

15. The kit of surgical instruments of claim 14, further comprising modular positioning devices selectable from a group of different devices to fit the particular application and said selected hollow tube.

16. The kit of surgical instruments of claim 14, further comprising modular graft retaining structures selectable from a group of different devices to fit the particular application and said selected hollow tube.

17. The kit of surgical instruments of claim 14, further comprising at least one centralizing cap and centralizing collar for attachment to one end of said modular plunger.