Modular humeral prosthesis for reconstruction of the humerus

Details Modular humeral prosthesis for reconstruction of the humerus Modular humeral prosthesis for reconstruction of the humerus

1994-02-22

1996-04-16

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 23, 606 60, 606 73, A61F 230, A61F 236, A61B 1756

Patent

active

055078176

ABSTRACT:
The invention is directed to a modular humeral prosthesis for implantation into a humerus of a patient. The prosthesis includes a proximal humeral component having a platform disposed on an upper end. A tapered projection is disposed on the platform. A cup-shaped fracture cap having a tapered opening with generally the same shape as the tapered projection is removably disposable on the tapered projection. The fracture cap is shaped so as to allow for space between the cap and the glenoid of a patient into whom the prosthesis is to be implanted and thereby allow the bones of the patient's humeral head to be reconstructed by reassembling and securing the bone fragments about the fracture cap. The prosthesis further includes a humeral head having a tapered opening which may be disposed on the proximal humeral component. The humeral head is interchangeable with the fracture cap. The prosthetic humeral head may be inserted into the patient's glenoid to replace the patient's natural humeral head in fracture cases where the natural humeral head is not viable, in arthritis cases where cartilage is degenerated, or where head fracture reconstruction is attempted but fails. The fracture cap and humeral head are both modular so as to allow caps and heads of differing sizes to be disposed on the proximal humeral component. The prosthesis also includes a modular distal stem extension which may be secured and locked on the distal end of the proximal humeral component. The distal stem extension allows the overall length of the prosthesis to be selectively increased, thereby allowing the prosthesis to be fitted to patient's having humeral shafts of differing sizes.

REFERENCES:
patent: 3694820 (1972-10-01), Scales et al.
patent: 3803641 (1974-04-01), Golyakhovsky
patent: 3842442 (1974-10-01), Kolbel
patent: 3916451 (1975-11-01), Buechel et al.
patent: 3979778 (1976-09-01), Stroot
patent: 4003095 (1977-01-01), Gristina
patent: 4040131 (1977-08-01), Gristina
patent: 4042980 (1977-08-01), Swanson et al.
patent: 4045825 (1977-09-01), Stroot
patent: 4115875 (1978-09-01), Rambert et al.
patent: 4206517 (1980-06-01), Pappas et al.
patent: 4261062 (1981-04-01), Amstutz et al.
patent: 4355427 (1982-10-01), Schneider
patent: 4404691 (1983-09-01), Buning et al.
patent: 4550450 (1985-11-01), Kinnett
patent: 4693723 (1987-09-01), Gabard
patent: 4822370 (1989-04-01), Schelhas
patent: 4865605 (1989-09-01), Dines et al.
patent: 4878917 (1989-11-01), Kranz et al.
patent: 4919669 (1990-04-01), Lannelongue
patent: 4919670 (1990-04-01), Dale et al.
patent: 4995883 (1991-02-01), Demane et al.
patent: 5002578 (1991-03-01), Luman
patent: 5002581 (1991-03-01), Paxson et al.
patent: 5074879 (1991-12-01), Pappas et al.
patent: 5080685 (1992-01-01), Bolesky et al.
patent: 5181928 (1993-01-01), Bolesky et al.
patent: 5209753 (1993-05-01), Biedermann et al.
patent: 5314426 (1994-05-01), Pohl et al.
patent: 5314479 (1994-05-01), Rockwood, Jr. et al.
patent: 5358524 (1994-10-01), Richelsoph
Craig, Edward V., "Prosthetic Replacement for Four-Part Fractures of the Proximal Humerus," in Operative Techniques in Shoulder Surgery, Lonnie E. Paulos and James E. Tibone (eds.), Aspen Publishers, Inc., 1991.
"True/Flex.TM. Humerus Rod System," Applied Osteo Systems, Inc. 1991.
"Russel-Taylor.RTM. Humeral Interlocking Nail System," Smith & Nephew Richards, Inc.
Burkhead, Jr., Wayne Z., "The Intermedics Select Shoulder System," Intermedics Orthopedics.TM., Inc. 1992.
Endotec Product Brochure, "Buechel-Pappas.TM. Femoral Stem System".
Endotec Product Brochure, "Buechel-Pappas.TM. Total Shoulder System," Implants and Instruments.
Endotec Product Brochure, "Buechel-Pappas.TM. Total Shoulder System," Surgical Procedure.
Biomet Product Brochure, "Bio-Modular.RTM. Total Shoulder," Biomet, Inc. 1989.
Biomet Product Brochure, "Bio-Modular.RTM. Total Shoulder," Surgical Technique, Biomet, Inc.
Biomet Product Brochure, "Uniflex.TM. Humeral Nail System," Biomet, Inc. 1991.
Matsen, et al., "Global.TM. Total Shoulder Arthroplasty System," DePuy Inc.
Product Brochure, "the Intermedics Select.RTM. Shoulder System," Intermedics Orthopedics.TM., Inc.

Affiliated with

Also associated with

Rating

Modular humeral prosthesis for reconstruction of the humerus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modular humeral prosthesis for reconstruction of the humerus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular humeral prosthesis for reconstruction of the humerus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-322114