Hook with rotating saddle and rotatable mono axial pedicle screw
AssigneeBlackstone Medical, Inc.
InventorsMichael Hammer, Tara Ziolo
Life of this patent
Estimating the term…
Abstract
Disclosed herein are a hook with rotating saddle and a rotatable mono axial pedicle screw. In an embodiment, the disclosed hook may include at least one body comprising a hook member and a saddle member. The hook member and saddle member may be rotatably mounted to one another so as to rotate with respect to each other only about a common axis, and the saddle member may be configured for connection to an end of a connecting member. A surgical screw system may include receiver and screw members engagable with one another such that when engaged, only rotation of the receiving member about the longitudinal axis of the screw member and restrain against substantially all other translational or rotational movement.
Claims19
A surgical hook apparatus comprising:
- at least one body comprising a hook member and a saddle member,
- wherein the hook member and saddle member are rotatably mounted to one another so as to rotate with respect to each other only about a common axis,
- and wherein the saddle member is configured for connection to an end of a connecting member.
A surgical screw system, comprising:
- a screw member having a head portion, a body portion and a longitudinal axis;
- a receiver member having upper and lower portions;
- wherein the upper portion is provided with a receiving slot defined therein for receiving a surgical rod;
- wherein the receiving member is provided with a retaining means for engagement with the head portion of the screw member;
- wherein the receiving member is mountable to the screw member by application of force in a direction parallel to the longitudinal axis and towards the body portion so as to engage the retaining means with a receiving surface of the screw member;
- and wherein when mounted to the head portion the retaining means is positioned to slide about the receiving surface to allow rotation of the receiving member about the longitudinal axis of the screw member and restrain against other translational or rotational movement of the screw member.
Dependencies are inferred from the claim text.