Cross pin fixator for bone fragments and use thereof
AssigneeA.M. Surgical, Inc.
InventorsRomi MIRZA, Ather MIRZA
Life of this patent
Estimating the term…
Abstract
The present application relates to a cross pin fixator device comprising a plate member with spherical cavities that are open to the front and to the back of the plate, collapsible pin holder members having a central channel for insertion of a bone pin, the collapsible pin holder member being press-fit into the spherical cavities, and bone pins individually inserted into the central channel of a pin holder. The application also relates to a method for treating a fracture of the proximal humerus using the proximal humerus cross pin fixator and to a kit for treating a fracture of a bone.
Claims21
A cross pin fixator device comprising:
- a plate member having a plurality of spherical cavities that are open to the front and to the back of the plate;
- a plurality of collapsible pin holder members having a central channel for insertion of a bone pin, wherein each collapsible pin holder member is press-fit into one of the spherical cavities;
- and
- threaded holes in the plate comprising set screws that contact the collapsible pin holder members from the side and immobilize or deform the pin holder members in the cavities.
15-17. (canceled)
A method for treating a fracture of a proximal humerus in a patient comprising:
- inserting one end of each of a plurality of bone pins through a site of bone fracture, wherein the bone pins traverse the site of bone fracture in a multi-angle and multi-planar configuration so as to secure fractured bone segments against rotation and axial movement;
- inserting the opposite end of each of the plurality of bone pins through a collapsible pin holder member of a proximal humerus cross pin fixator having a central channel for insertion of a bone pin, wherein each collapsible pin holder member is press-fit into a spherical cavity of a plate member of the proximal humerus cross pin fixator;
- and
- immobilizing a collapsible pin holder by tightening a set screw inserted into a threaded hole in the plate member of the proximal humerus cross pin fixator.
(canceled)
A kit for the treatment of a fracture of a bone, comprising:
- a plate member of a cross pin fixator having a plurality of spherical cavities that are open to the front and to the back of the plate, the plate member further having a plurality of threaded holes in the plate for set screws, and a plurality of set screws that, when fastened, contact collapsible pin holder members from the side and immobilize or deform the pin holder members in the cavities;
- a plurality of collapsible pin holder members having a central channel for insertion of a bone pin, wherein each collapsible pin holder member can be press-fit into one of the spherical cavities of the plate member;
- and
- a plurality of bone pins.
Dependencies are inferred from the claim text.