Patent ID: 9039772
Filing Date: 2015-05-26
Classification: A61B,A61F

Abstract:
1. An image-based, patient-specific medical spinal prosthesis comprising: a prosthesis body on which a plurality of supporting insert holes are formed, each of the plurality of supporting insert holes having a predetermined shape corresponding to a size and a shape of a corresponding one of a plurality of vertebral processes of a patient in a surgical site, wherein each of the plurality of supporting insert holes of the prosthesis body is configured to receive the corresponding one of the plurality of vertebral processes to support between the plurality of vertebral processes, wherein the prosthesis body is modifiable according to a movement of a spine, wherein the prosthesis body is manufactured in a bio-compatible polymer material which undergoes thermal expansion that is activated by a body temperature of the patient, the prosthesis body thereby being more tightly fixed to the plurality of vertebral processes, wherein the prosthesis body includes a first side and a second side opposite to the first side, and the plurality of supporting insert holes includes, when taken from a sectional view of the prosthesis body, a blind hole that extends inwardly from the first side towards the second side but does not break through to the second side of the prosthesis body, and a through hole that extends through the prosthesis body from the first side to the second side, the through hole being configured to have the corresponding one of the plurality of vertebral processes enter the through hole from the first side, pass through the through hole, and protrude from the second side, wherein, when taken from a plan view viewed from the second side, the through hole is exposed to the second side and is entirely surrounded by the prosthesis body, wherein the prosthesis body is configured to be coupled to the plurality of vertebral processes only by the thermal expansion of the bio-compatible polymer material, and without a fastener for fixing the prosthesis body to the plurality of vertebral processes.