Granted Patent B2

US 12,740,873 · App. 18/504,276 · Granted Sep 22, 2026

Inventors: Pierric Deransart (Saint Martin d'uriage, FR); Emmanuel Francois Marie Lizee (Saint Ismier, FR); Delphine Claire Michelle Henry (Saint Ismier, FR); Jean Chaoui (Locmaria-Plouzane, FR); Gilles Walch (Lyons, FR); Pascal Boileau (Nice, FR)

Assignee: TORNIER SAS

A61F2/4612A61B17/1739A61B17/1778A61B2017/568A61F2/4081A61F2/4603A61F2002/4677

Abstract

Claims (23)

1 . A system for guiding a glenoid prosthesis that includes a glenoid component, the system comprising:

a glenoid guide that comprises:

a central tubular element defining a lumen;

at least three arms radially extending from the central tubular element, each arm of the at least three arms having a first end coupled with the central tubular element and a second end disposed away from the central tubular element;

at least three peripheral pegs, each peripheral peg extending from the second end of a corresponding arm, extending away from a bone-facing surface of the corresponding arm, and comprising an engagement surface configured to engage a peripheral border of a glenoid cavity of a patient; and

a strut radially extending from the central tubular element, the strut comprising a positioning opening; and

a pin guide configured to be at least partially received within the lumen defined by the central tubular element,

wherein a longitudinal direction of each of the at least three peripheral pegs extends substantially orthogonally from an axis defined by the corresponding arm of the at least three arms such that each arm of the at least three arms is spaced apart from a glenoid when each engagement surface of the at least three peripheral pegs engages the peripheral border of the glenoid cavity.

2 . The system of claim 1 , wherein the central tubular element comprises a tapered surface configured to engage a corresponding tapered surface of the pin guide.

3 . The system of claim 1 , wherein the positioning opening is provided to be positioned along a supero-inferior axis of the glenoid component when the glenoid guide is being used to guide the glenoid component with respect to the glenoid cavity of the patient.

4 . The system of claim 1 , wherein a position and orientation of the central tubular element is provided to control a translational and rotational position of the glenoid component during implantation.

5 . The system of claim 4 , wherein the position and orientation of the central tubular element provides translational control along an axis.

6 . The system of claim 1 , wherein the central tubular element is configured so that one or more pins are insertable through the glenoid guide to establish one or more axes about which subsequent bone preparation procedures can be carried out.

7 . The system of claim 1 , wherein the glenoid guide comprises two or more lumens having parallel axes.

8 . The system of claim 1 , wherein the at least three peripheral pegs comprises four peripheral pegs.

9 . The system of claim 8 , wherein three peripheral pegs of the four peripheral pegs are positioned to engage an anterior border of the glenoid cavity and a fourth peripheral peg of the four peripheral pegs is positioned to engage a supero-posterior border of the glenoid cavity.

10 . The system of claim 1 , wherein the at least three peripheral pegs have a cross-section that is round.

11 . A system for guiding a glenoid prosthesis that includes a glenoid component, the system comprising:

a glenoid guide, including:

a central tubular element defining a lumen configured to receive a pin guide;

a plurality of arms, each arm having a first end coupled with central tubular element and a second end disposed away from the guide feature such that each arm of the plurality of arms extends radially outwardly from the guide feature; and

a plurality of peripheral pegs having a circular cross-section, wherein each peripheral peg includes a lateral end being coupled to the second end of a corresponding one of the plurality of arms, the peripheral peg extending away from a bone-facing surface of the corresponding arm, and comprising an engagement surface at a medial end, the engagement surface configured to conform to a three dimensional shape of a glenoid cavity border of a scapula of a patient such that each arm of the plurality of arms is spaced apart from a lateral surface of a glenoid when each of the engagement surfaces contacts the border of the glenoid cavity,

wherein a longitudinal direction of each of the plurality peripheral pegs extends substantially orthogonally from an axis defined by the corresponding arm of the plurality of arms such that each arm of the plurality of arms is spaced apart from a glenoid when each engagement surface of the plurality of peripheral pegs engages the glenoid cavity border of the scapula.

Assignments (1)

Continuity (5)

References Cited (400)