US 12,653,590 B2Granted

Detachable bone fixation device and related methods

AssigneeSurgical Design Innovations, LLC

InventorsJordan Grossman, Shannon M. Rush, Michael Lee, Troy J. Boffeli, Mark Hardy

Life of this patent

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Abstract

Various bone fixation device embodiments include both a fixation device (such as a screw) and a detachable driver device, with the fixation device having an elongate uncannulated fixation shaft, a sharp distal tip, and a proximal head having a first coupling structure and a proximal flat surface, and the detachable driver device having an elongate driver shaft and a distal head having a second coupling structure and a distal flat surface. Further implementations include a combination device comprising both a detachable driver device and a fixation device, along with related systems and methods. In addition, a stabilization device is provided that can be coupled to a detachable driver device and an attachment device to help maintain the coupling of the driver device and the attachment device and help to maintain the coupling thereof during a procedure.

Claims20

Dependent claims

A bone fixation device comprising:

(a) a fixation segment comprising:
(i) an elongate fixation shaft;
(ii) a distal tip;
and
(iii) a proximal head comprising a first coupling structure, wherein the proximal head has a diameter that is greater than the diameter of the elongate fixation shaft;
(b) a detachable driver segment comprising:
(i) an elongate driver shaft;
and
(ii) a distal head comprising a second coupling structure, wherein the second coupling structure is detachably coupleable with the first coupling structure;
and
(c) a stabilization device removably coupleable to the fixation segment and the detachable driver segment, the stabilization device comprising:
(i) an elongate body comprising a lumen defined through the elongate body;
(ii) at least one distal flexible retention structure disposed within the lumen;
and
(iii) at least one proximal flexible retention structure disposed within the lumen proximally of the at least one distal flexible retention structure,
wherein the stabilization device is positionable over the fixation segment and the detachable driver segment such that the proximal head and the distal head are disposed within the lumen between the at least one distal flexible retention structure and the at least one proximal flexible retention structure.

13 more elements

A bone fixation device comprising:

(a) a fixation segment comprising:
(i) an elongate uncannulated fixation shaft having a diameter of less than about 5 mm;
(ii) a sharp distal tip;
and
(iii) a proximal head comprising a first coupling structure, wherein the proximal head has a proximal flat surface comprising a diameter that is greater than the diameter of the elongate fixation shaft;
and
(b) a detachable driver segment comprising:
(i) an elongate driver shaft having a diameter of less than about 5 mm;
and
(ii) a distal head comprising a distal flat surface and a second coupling structure, wherein the second coupling structure is detachably coupleable with the first coupling structure and the distal flat surface is mateable with the proximal flat surface;
and
(c) a stabilization device removably coupleable to the fixation segment and the detachable driver segment, the stabilization device comprising:
(i) an elongate body comprising a lumen defined through the elongate body;
(ii) at least one distal flexible retention structure disposed within the lumen;
and
(iii) at least one proximal flexible retention structure disposed within the lumen proximally of the at least one distal flexible retention structure,
wherein the stabilization device is positionable over the fixation segment and the detachable driver segment such that the proximal head and the distal head are disposed within the lumen between the at least one distal flexible retention structure and the at least one proximal flexible retention structure.

14 more elements

A bone fixation device comprising:

(a) a fixation segment comprising:
(i) an elongate uncannulated threaded fixation shaft having a diameter of less than about 5 mm;
ii) a sharp distal tip;
and
(iii) a proximal head comprising a first coupling structure, wherein the proximal head has a proximal flat surface comprising a diameter that is greater than the diameter of the elongate fixation shaft;
(b) a detachable driver segment comprising:
(i) an elongate driver shaft having a diameter of less than about 5 mm;
and
(ii) a distal head comprising a distal flat surface and a second coupling structure, wherein the second coupling structure is detachably coupleable with the first coupling structure and the distal flat surface is mateable with the proximal flat surface;
and
(c) a stabilization device comprising:
(i) an elongate body comprising a lumen defined through the elongate body;
(ii) at least one distal flexible retention structure disposed within the lumen;
and
(iii) at least one proximal flexible retention structure disposed within the lumen proximally of the at least one distal flexible retention structure,
wherein the fixation segment and the detachable driver segment are positionable through the lumen of the stabilization device such that the proximal head and the distal head are coupled together and disposed between the at least one distal flexible retention structure and the at least one proximal flexible retention structure for transport, storage, and use of the bone fixation device.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/327,271Filed 1 Jun 2023 · us provisional application
Priority: 1 Jun 2022
Published: US 2024/0122635 A118 Apr 2024
Granted: 16 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61B 17/8615
Specially shaped for gripping driver: at the central region of the screw head
A61B 17/8891
Holding the screw head: at its periphery
A61B 17/861
Heads, i.e. proximal ends projecting from bone: specially shaped for gripping driver
A61B 17/8635
Shanks, i.e. parts contacting bone tissue: tips of screws