Bone fracture reduction and fixation devices with identity tags

• US 4,923,471 A
• Filed: 10/17/1989
• Issued: 05/08/1990
• Est. Priority Date: 10/17/1989
• Status: Expired due to Term

• Current Assignee: Sofamor Danek Properties, Inc. (Medtronic Plc)
• Original Assignee: TiMesh, Inc. (Medtronic Plc)
• Inventors: Morgan, Frank H.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Willse, David H.
• Application Number:
  US07/422,741
• Time in Patent Office: 203 Days
• Field of Search: 623/16, 623/17, 623/18, 623/19, 623/20, 623/21, 623/22, 606/60, 606/61, 606/69, 606/70, 606/71, 128/69
• US Class Current: 606/60
• 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 2090/037 with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 90/90 Identification means for patients or instruments, e.g. tags
• CPC Class Codes: Y10S 606/907 Composed of particular material or coated

Abstract

The present invention relates to a bone fracture reduction device for the internal fixation and immobilization of bone fragments. The device is comprised of a thin malleable bone affixation plate, formed of a biocompatible metallic material with at least two spaced openings extending therethrough each for receiving a bone screw, with a thin bone plate identification tag formed as an integral extension of the bone affixation plate. The identification tag bears at least the name of the plate manufacturer, the manufacturer'"'"'s product number, and the manufacture'"'"'s production lot number for the bone affixation plate to provide full traceability of the device, and the identification tag provides the surgeon using the bone plate with means for handling and manipulating the plate during its affixation to bone fragments at a fracture site and after plate affixation the tag is severable from the plate for archiving.

Claims

1. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site comprising:

(a) a thin malleable bone affixation plate formed of a biocompatible metallic material, said plate having at least two spaced openings extending therethrough each for receiving a bone screw to be driven into bone fragments at a fracture site to affix said plate to said bone fragments; and

(b) a thin bone plate identification tag formed as an integral extension of said bone plate, said identification tag bearing at least the name of the plate manufacturer, the manufacturer'"'"'s product number, and the manufacturer'"'"'s production lot number for said plate to provide full traceability of the device with respect to material specifications, manufacturing procedures and quality controls, and said identification tag providing means for handling and manipulating said bone plate during its affixation to bone fragments at a fracture site and being severable from said bone plate for archiving.

2. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claim 1 wherein said thin malleable bone affixation plate comprises a generally rectangular perforated mesh-type structure fabricated of a biocompatible metal or metallic alloy selected from the group consisting of titanium, titanium alloys, cobalt-chromium alloys and stainless steels, said severable bone plte identification tag extending from one end of said mesh-type structure.

3. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claim 1 wherein said thin malleable bone affixation plate includes two plate sections interconnected by a relatively narrow deformable leg section with at least two screw holes extending through each plate section, the screw holes of each plate section being in general alignment with the long axis of said leg section, said severble bone plate identification tag extending from one of said plate sections.

4. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claim 1 wherein said thin malleable bone affixation plate includes two terminal plate sections with at least two screw holes extending therethrough, an intermediate plate section having at least one screw hole extending therethrough, and two relatively narrow deformable leg sections with each of said leg sections interconnecting one of said terminal plate sections to said intermediate plate section, said severable bone plate identification tag extending from one of said terminal plate sections.

5. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claim 1 wherein said thin malleable bone affixation plate includes three or more terminal plate sections with at least two screw holes extending therethrough, a central hub-type plate section having a single screw hole extending therethrough, and a relatively narrow deformable leg section interconnecting each of said terminal sections with said central plate section, said severable bone plate identification tag extending from one of said terminal plate sections.

6. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claim 1 wherein said thin malleable bone affixation plate includes three or more like bone plate sections each with at least one screw hole extending therethrough, each of said plate sections interconnected by relatively narrow deformable leg sections of equal or unequal length to two adjacent like plate sections whereby said bone plate takes on the form of a closed multiple sided geometrical plane figure, said severable bone plate identification tag extending from one of said plate sections.

7. An implantable bone fracture reduction device for the internal fixation and immobilization of bone fragments at a bone fracture site as claimed in claims 3, 4, 5, 5, or 6 wherein said thin malleable bone affixation plate is fabricated of a biocompatible metal or metallic alloy selected from the group consisting of titanium, titanium alloys, cobalt-chromium alloys and stainless steels.