Fixation device
OwnerIan Ross Griggsinventor
Life of this patent
Estimating the term…
Abstract
A fixation device comprises an outer hollow elongate member having a plurality of holes in its outer wall, and an inner member carrying a plurality of pins, such that the device is placed in a suitable cavity and the pins are extended through the respective holes.
Claims36
An intramedullary bone fixation device comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a medullary canal of a bone, and
- an inner member sized to be slidably receivable within the hollow elongate member, the inner member carrying at least one pin, the inner member having at least one groove in an outer surface thereof, said at least one groove extending in a direction that is generally transverse to a longitudinal axis of the inner member, said at least one pin being positioned in the at least one groove when the at least one pin is in a retracted position, at least one said pin being pivotally connected at one end thereof to the inner member, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, and wherein the at least one pin is moved to the extended position by placing free ends of the at least one pin into alignment with the at least one opening and rotating the inner member to thereby extend the at least one pin through the at least one opening.
An intramedullary bone fixation device comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a medullary canal of a bone,
- an inner member sized to be slidably receivable within the hollow elongate member, the inner member carrying at least one pin, the inner member having at least one groove in an outer surface thereof, said at least one pin being positioned in the at least one groove when the at least one pin is in a retracted position, at least one said pin being pivotally connected at one end thereof to the inner member, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, and wherein the at least one pin is moved to the extended position by placing free ends of the at least one into alignment with the at least one opening and rotating the inner member to thereby extend the at least one pin through the at least one opening, and
- the hollow elongate member and the inner member are of adjustable length.
An intramedullary bone fixation device comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a medullary canal of a bone, and
- an inner member sized to be slidably receivable within the hollow elongate member, the inner member carrying at least one pin, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, wherein at least one said pin has an enlargement at one end thereof and the enlargement rests in a respective hole formed in the inner member and the at least one pin extends along respective grooves formed in an outer surface of the inner member when in the retracted position, said groove extending in a direction that is generally transverse to a longitudinal axis of said inner member, wherein the at least one pin is retained in place by an inner wall of the hollow elongate member and the at least one pin is extended by aligning free ends thereof with the at least one opening in the hollow elongate member and rotating the inner member.
An intramedullary bone fixation device comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a medullary canal of a bone,
- an inner member sized to be slidably receivable within the hollow elongate member, the inner member carrying at least one pin, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, wherein at least one said pin has an enlargement at one end thereof and the enlargement rests in a respective hole formed in the inner member and the at least one pin extends along respective grooves formed in an outer surface of the inner member when in the retracted position, wherein the at least one pin is retained in place by an inner wall of the hollow elongate member and the at least one pin is extended by aligning free ends thereof with the at least one opening in the hollow elongate member and rotating the inner member, and
- the hollow elongate member and the inner member are of adjustable length.
An apparatus for fixing to a structure, beam, member or the like, comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a hole in a structure, beam, member or the like, and
- an inner member that is insertable into the hollow elongate member, the inner member carrying at least one fixing pin, the inner member having at least one groove in an outer surface thereof, said at least one groove extending in a direction that is generally transverse to a longitudinal axis of the inner member, said at least one fixing pin being positioned in the at least one groove when the at least one fixing pin is in a retracted position, the at least one fixing pin being pivotally connected at one end thereof to the inner member, the at least one fixing pin being movable from a retracted position to an extended position in which the at least one fixing pin extends through respective ones of the at least one opening in the hollow elongate member, and wherein the at least one fixing pin is moved to the extended position by placing free ends of the at least one fixing pin into alignment with the at least one opening and rotating the inner member to thereby extend the at least one fixing pin through the at least one opening and into at least one wall defining the hole in a structure, beam, member or the like to fix the apparatus to the structure, beam, member or the like.
An apparatus for fixing to a structure, beam, member or the like, comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a hole in a structure, beam, member or the like,
- an inner member that is insertable into the hollow elongate member, the inner member carrying at least one pin, the inner member having at least one groove in an outer surface thereof, said at least one pin being positioned in the at least one groove when the at least one pin is in a retracted position, the at least one pin being pivotally connected at one end thereof to the inner member, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, and wherein the at least one pin is moved to the extended position by placing free ends of the at least one pin into alignment with the at least one opening and rotating the inner member to thereby extend the at least one pin through the at least one opening, and
- the hollow elongate member and the inner member are of adjustable length.
An apparatus for fixing to a structure, beam, member or the like, comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a hole in a structure, beam, member of the like, and
- an inner member that is insertable into the hollow elongate member, the inner member carrying at least one fixing pin, the at least one fixing pin being movable from a retracted position to an extended position in which the at least one fixing pin extends through respective ones of the at least one opening in the hollow elongate member, wherein the at least one fixing pin has an enlargement at one end thereof and the enlargement rests in a respective hole formed in the inner member and the at least one fixing pin extends along respective grooves formed in the inner member when in the retracted position, said grooves extending in a direction that is generally transverse to a longitudinal axis of said inner member, wherein the at least one fixing pin is retained in place by an inner wall of the hollow elongate member and the at least one fixing pin is extended by aligning free ends thereof with the at least one opening in the hollow elongate member and rotating the inner member so that the at least one fixing pin extends out of the at least one opening and into at least one wall defining the hole in the structure, beam, member or the like to fix the apparatus to the structure, beam, member or the like.
An apparatus for fixing to a structure, beam, member or the like, comprising:
- a hollow elongate member having at least one opening in a side wall thereof, the hollow elongate member being adapted for insertion into a hole in a structure, beam, member of the like,
- an inner member that is insertable into the hollow elongate member, the inner member carrying at least one pin, the at least one pin being movable from a retracted position to an extended position in which the at least one pin extends through respective ones of the at least one opening in the hollow elongate member, wherein the at least one pin has an enlargement at one end thereof and the enlargement rests in a respective hole formed in the inner member and the at least one pin extends along respective grooves formed in the inner member when in the retracted position, wherein the at least one pin is retained in place by an inner wall of the hollow elongate member and the at least one pin is extended by aligning free ends thereof with the at least one opening in the hollow elongate member and rotating the inner member, and
- the hollow elongate member and the inner member are of adjustable length.
Dependencies are inferred from the claim text.