Expandable hip implant

• US 6,361,565 B1
• Filed: 06/23/2000
• Issued: 03/26/2002
• Est. Priority Date: 08/12/1991
• Status: Expired due to Fees

• Current Assignee: Bonutti Skeletal Innovations LLC (Acacia Research Corporation)
• Original Assignee: Peter M. Bonutti
• Inventors: Bonutti, Peter M.
• Primary Examiner(s): Prebilic, Paul B.
• Application Number:
  US09/602,743
• Time in Patent Office: 641 Days
• Field of Search: 623/22.12, 623/23.72, 623/11.11, 623/23.28, 623/23.26, 623/23.34, 623/23.46, 623/901, 623/16.11, 623/23.23, 623/23.25, 623/23.14, 623/23.44, 623/908, 606/76, 606/77, 600/36
• US Class Current: 623/22.12
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 17/1606 of forceps type, i.e. having two jaw elements moving relative to each other
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 17/885 Tools for expanding or compacting bones or discs or cavities therein A61B17/8805, A61B17/7097 take precedence
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/00969 used for transplantation
• CPC Class Codes: A61F 2/08 Muscles; Tendons; Ligaments sutures A61B17/04
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/3094 Designing or manufacturing processes
• CPC Class Codes: A61F 2/3662 Femoral shafts
• CPC Class Codes: A61F 2/4644 Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material bone material A61F2/28; disintegrating or milling devices B02C
• CPC Class Codes: A61F 2002/2839 Bone plugs or bone graft dowels
• CPC Class Codes: A61F 2002/30062 (bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
• CPC Class Codes: A61F 2002/30075 swellable, e.g. when wetted
• CPC Class Codes: A61F 2002/30224 cylindrical
• CPC Class Codes: A61F 2002/30545 for adjusting a diameter
• CPC Class Codes: A61F 2002/30579 with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2210/0004 : bioabsorbable
• CPC Class Codes: A61F 2210/0061 : swellable
• CPC Class Codes: A61F 2230/0069 : cylindrical
• CPC Class Codes: A61F 2240/001 : Designing or manufacturing processes
• CPC Class Codes: A61F 2250/001 : for adjusting a diameter
• CPC Class Codes: B30B 1/04 : operated by hand or foot
• CPC Class Codes: B30B 11/02 : using a ram exerting pressure on the material in a moulding space
• CPC Class Codes: Y10S 623/901 : Method of manufacturing prosthetic device
• CPC Class Codes: Y10S 623/908 : Bone
• CPC Class Codes: Y10S 623/919 : Bone
• CPC Class Codes: Y10S 623/92 : Method or apparatus for preparing or treating prosthetic

Abstract

An implant is formed of an expandable material. An opening is formed in a bone in a patient'"'"'s body. At least a portion of the implant is positioned in the opening in the bone in the patient'"'"'s body. The implant is retained against movement relative to the bone in the patient'"'"'s body by absorbing body fluid with the implant and expanding the implant while the implant is disposed in the opening in the bone in the patient'"'"'s body. The implant may be a hip replacement member.

Claims

1. A method of repairing a patient'"'"'s hip, said method comprising the steps of providing a hip replacement member which is at least partially formed of a material which absorbs body fluid and expands, forming an opening in a bone in a patient'"'"'s body, positioning at least a portion of the hip replacement member in the opening in the bone in the patient'"'"'s body, said step of positioning at least a portion of the hip replacement member in the opening in the bone in the patient'"'"'s body includes positioning a first end portion of the hip replacement member in the opening in the bone with a second end portion of the hip replacement member outside of the opening in the bone, and retaining the hip replacement member against movement relative to the bone in the patient'"'"'s body and expanding the portion of the hip replacement member disposed in the opening in the bone in the patient'"'"'s body as fluid is absorbed by the portion of the hip replacement member in the bone in the patient'"'"'s body.