Granted Patent B2

US 12,383,287 · App. 17/930,235 · Granted Aug 12, 2025

Inventors: Paul Stemniski (Arlington, TN); Sarah Lancianese (Orlando, FL); Richard Obert (Poway, CA)

Assignee: MICROPORT ORTHOPEDICS HOLDINGS, INC.

A61B17/1775A61B17/15A61B17/1633A61B17/1682A61B17/1703A61B17/1717A61B17/1728A61B17/1739A61F2/4202A61B2017/0046A61B2017/00477A61B2017/568A61B2034/108

Abstract

Claims (19)

1. A surgical device, comprising:

an elongate body having a proximal end and a distal end with a step formed along at least one side of the body, the distal end of the elongate body defining a notch sized and configured to receive a reamer;

a coupling assembly supported by the elongate body including (i) a reamer guide body disposed at the distal end of the elongate body and configured to move between a first position and a second position, and (ii) first and second rods disposed within a channel defined by the elongate body, the first rod coupled to a head extending outwardly from the longitudinal channel, and the second rod pivotably coupled to the first rod and to an end of the reamer guide body; and

a locking assembly supported by the elongate body, the locking assembly configured to releasably engage the coupling assembly to maintain the reamer guide body in the second position, wherein the reamer guide body extends at least partially across the notch in the second position.

2. The surgical device of claim 1 , wherein the coupling assembly includes a biasing member disposed within the channel, the biasing member configured to bias the head in a proximal direction.

3. The surgical device of claim 1 , wherein the locking assembly includes a button slidably positioned within a cavity defined at the proximal end of the elongate body, and a biasing member configured to urge the button in a direction towards the coupling assembly.

4. The surgical device of claim 3 , wherein a lower portion of the button includes an angled surface that complements an angled surface of the head of the coupling assembly.

5. The surgical device of claim 1 , further comprising a second coupling assembly coupled to the elongate body, the second coupling assembly configured to releasably secure the surgical device to another instrument in combination with the step.

6. The surgical device of claim 5 , wherein the second coupling assembly includes a button pivotably coupled to the at least one side of the elongate body, and a biasing member disposed within a cavity formed along the at least one side of the elongate body, the biasing member configured to exert a force on the button.

7. The surgical device of claim 6 , wherein the button includes a detent at a first end that is disposed opposed an end on which the biasing member exerts the force.

8. The surgical device of claim 1 , wherein the reamer guide body includes an arcuate surface configured to support the reamer, the reamer guide body disposed adjacent to a first hole configured to receive a first pin for pivotably coupling the reamer guide body to the distal end of the elongate body, and a second hole is defined adjacent to the first hole, the second hole configured to receive a second pin for pivotably coupling the reamer guide body to the pivotable second rod of the coupling assembly.

9. The surgical device of claim 1 , wherein the coupling assembly includes a plunger rod disposed within a channel defined by the elongate body, a first end of the plunger rod is coupled to the pivotable second rod, and a second end of the plunger rod is coupled to the head including an upper portion that is disposed outwardly of the channel; and a first biasing member disposed within the channel, the biasing member disposed between a lower portion of the head and a reduced diameter area of the channel defined by the elongate body, the biasing member configured to urge the head in a proximal direction.

10. The surgical device of claim 9 , wherein the locking assembly includes a button slidably positioned within a cavity defined at the proximal end of the elongate body, and a second biasing member configured to urge the button in a direction towards the head of the coupling assembly.

11. The surgical device of claim 10 , wherein a lower portion of the button includes an angled surface that complements an angled surface of the head of the coupling assembly.

12. A reamer stabilizer, comprising: an elongate body extending from a proximal end to a distal end, the distal end of the elongate body defining a notch for receiving a reamer; a slidable guide assembly supported by the elongate body, the slidable guide assembly including a reamer guide body pivotably coupled to the distal end of the elongate body, the reamer guide body configured to move between a first position and a second position and including an arcuate surface for supporting the reamer wherein the reamer guide body defines first and second holes, the first hole is configured to receive a first pin for pivotably coupling the reamer guide body to the distal end of the elongate body, and the second hole is configured to receive a second pin for pivotably coupling the reamer guide body to a pivoting rod of the slidable guide assembly; and a locking assembly slidably supported by the elongate body, the locking assembly configured to move between a third position and a fourth position in which the locking assembly releasably engages the slidable guide assembly to maintain the reamer guide body in the second position, wherein the reamer guide body extends at least partially across the notch in the second position.

13. The reamer stabilizer of claim 12 , wherein the slidable guide assembly includes a plunger rod disposed within a longitudinal channel defined by the elongate body, a first end of the plunger rod is coupled to the pivoting rod, and a second end of the plunger rod is coupled to a head including an upper portion that is disposed outwardly of the elongate channel; and a first biasing member disposed within the elongate channel, the biasing member disposed between a lower portion of the head and a reduced diameter area of the longitudinal channel defined by the elongate body, the biasing member configured to urge the head in a proximal direction.

14. The reamer stabilizer of claim 12 , wherein the locking assembly includes a button slidably positioned within a cavity defined at the proximal end of the elongate body, and a second biasing member configured to urge the button in a direction towards the slidable guide assembly.

15. The reamer stabilizer of claim 12 , further comprising a coupling assembly includes a button pivotably coupled to a side of the elongate body, and a biasing member disposed within a cavity formed along the side of the elongate body, the biasing member configured to exert a force on the button.

16. The reamer stabilizer of claim 15 , wherein the button includes a detent at a first end that is disposed opposed an end on which the biasing member exerts the force.

Continuity (11)

References Cited (400)