System for performing hip prosthesis revision surgery

• US 5,470,336 A
• Filed: 10/26/1993
• Issued: 11/28/1995
• Est. Priority Date: 08/10/1990
• Status: Expired due to Term

• Current Assignee: Zimmer Technology Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Graham A. Gie, Jacques J. Vanderlinden, James J. Elting, Mikhail W E Michael, Robin S.M. Ling, Tom J. J. H. Slooff
• Inventors: Ling, Robin S. M., Gie, Graham A., Slooff, Tom J. J. H., Vanderlinden, Jacques J., Elting, James J., Mikhail, W. E. Michael
• Primary Examiner(s): Prebilic, Paul B.
• Application Number:
  US08/143,272
• Time in Patent Office: 763 Days
• Field of Search: 623/16, 623/18, 623/23, 606/92, 606/93, 606/94, 606/95, 606/96, 606/99, 606/105
• US Class Current: 606/105
• CPC Class Codes: A61B 17/164 intramedullary
• CPC Class Codes: A61B 17/1659 Surgical rasps, files, planes, or scrapers
• CPC Class Codes: A61B 17/1668 for the upper femur A61B17/164 takes precedence
• CPC Class Codes: A61B 17/175 for preparing the femur for hip prosthesis insertion
• CPC Class Codes: A61B 17/8847 for removing cement from a bone cavity using surgical bone chisels, drills, mills, rasps, reamers or scrapers A61B17/16; using laser A61B18/20; using ultrasonic surgical instruments A61N7/00
• CPC Class Codes: A61B 2090/062 penetration depth
• 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 2/36 Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/3662 Femoral 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 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4614 of plugs for sealing a cement-receiving space
• CPC Class Codes: A61F 2/4657 Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• 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 2002/3069 Revision endoprostheses
• CPC Class Codes: A61F 2002/30726 Centering or guiding rods, e.g. for insertion of femoral shafts
• CPC Class Codes: A61F 2002/368 with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
• CPC Class Codes: A61F 2002/3694 with longitudinal bores
• CPC Class Codes: A61F 2002/4619 : for extraction
• CPC Class Codes: A61F 2002/4631 : the prosthesis being specially adapted for being cemented
• CPC Class Codes: A61F 2002/4662 : for measuring penetration depth
• CPC Class Codes: A61F 2002/4677 : using a guide wire
• CPC Class Codes: A61F 2002/4681 : by applying mechanical shocks, e.g. by hammering

Abstract

An apparatus for performing hip prosthesis revision surgery includes means for preparation of the cavity left after removal of the original prosthesis. A tamp having a longitudinal passageway extending longitudinally through the stem portion thereof and a guidewire positioned in the cavity function to compact bone graft material in the cavity and form a precisely contoured new hip prosthesis receiving cavity.

Claims

1. Apparatus for use in preparing a femoral cavity to receive (1) bone graft material and (2) a femoral hip prosthesis of predetermined size and configuration comprising in combination:

(a) an elongate handle which is made of a material of suitable strength to transmit impacts made thereto;

(b) a guidewire;

(c) means for supporting said guidewire longitudinally in said cavity;

(d) a cannulated tamp having a stem extending from a proximal end having a relatively large cross-sectional size and tapering to a distal end having a relatively small cross-sectional size, said stem having (1) a size larger than and a configuration similar to said femoral hip prosthesis and (2) a passageway sized to slideably receive said guidewire, said passageway extending from said proximal end to said distal end; and

(e) means offset from said passageway extending from said proximal end for engagement by said handle, said proximal end and means for engagement being positioned to transmit impacts directed to said handle to said distal end, said tamp is made of a material having suitable strength to transmit impacts which compact crushed cancellous bone graft material to a desired density.

2. Apparatus according to claim 1, wherein said stem is polished to a smooth finish.

3. Apparatus according to claim 1, wherein said cannulated tamp is sized in relation to said femoral hip prosthesis to provide 2-4 millimeters of bone cement in all portions of said stem.