Patient-specific humeral guide designs

  • US 10,226,262 B2
  • Filed: 06/25/2015
  • Issued: 03/12/2019
  • Est. Priority Date: 06/25/2015
  • Status: Active Grant
First Claim
Patent Images

1. A humeral cut guide member for a humeral head, comprising:

  • a bone-engagement member including a first patient-specific bone-engagement surface that is complementary and made to substantially mate and nest in only one position on a specific patient'"'"'s humeral head;

    a registration member connected to the bone-engagement member including a second patient-specific bone engagement surface that is sized and made to substantially mate and nest in only one position with the specific patient'"'"'s bicipital groove; and

    a cut guide plate connected to and extending away from the bone-engagement member such that, upon the bone-engagement member mating and nesting with the specific patient'"'"'s humeral head, the cut guide plate is spaced apart from the humeral head,wherein the cut guide plate defines an elongated slot having a platform extending from one side of the elongate slot to provide additional surface area beyond the elongate slot for a cutting tool to lie upon before entering the elongate slot and during cutting of the humeral head;

    wherein the cut guide plate is connected to the bone-engagement member by a tube-shaped member extending outward from the registration member, and the cut guide plate includes a connection portion for receipt of the tube-shaped member such that a position of the cut guide plate relative to the specific patient'"'"'s humeral head is selectively adjustable; and

    wherein;

    a first end of the registration member is connected to a first end of the bone-engagement member;

    a second end of the registration member is connected to the tube-shaped member; and

    wherein the registration member includes a protrusion extending from an exterior surface thereof at a juncture with the tube-shaped member so that the protrusion and a second end of the bone-engagement member are disposed on opposite sides of the specific patient'"'"'s humeral head, the protrusion defining a contact surface for manipulation of the humeral cut guide member relative to the humeral head.

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