Device for the resection of bones, method for producing such a device, endoprosthesis suited for this purpose and method for producing such an endoprosthesis
First Claim
1. A method for manufacturing a device for resecting of bones with at least one tool guide and at least one support suitable for orienting the at least one tool guide, with the following steps:
- a) Preparation of images of the bone, wherein the bone needs to be prepared,b) Determination of linear contours of the bone at the images,c) Determination of areas on the bone that need to be prepared and selection of areas on the bone for positioning of the at least one tool guide at a joint element, andd) Manufacture of a template with the at least one support which enables the at least one tool guide to be oriented and positioned at the joint element or enables orientation or positioning of the at least one tool guide distally to the areas to be prepared and/or outside a surgical area at the joint element; and
to the at least one tool guide positioned and located relatively to the support;
wherein the at least one support includes a surface conforming to the linear contours of the bone in the areas on the bone for positioning of the at least one tool guide.
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Abstract
The present invention refers to a device for the resection of bones (1) for preparing the attachment of an endoprosthesis to the joints which consists of at least two joint elements cooperating with each other, comprising at least one tool guide (3, 4, 5, 7, 14) and at least one support (6, 9, 10, 15, 21) suitable for orienting the at least one tool guide (3, 4, 5, 7, 14), wherein, either in the immediate vicinity of the joint and/or across joints, the at least one support (15, 21) enables the at least one tool guide (3, 4, 5, 7, 14) to be oriented and positioned on a further joint element, or enables the at least one tool guide (3, 4, 5, 7, 14) to be oriented and positioned at the same joint element distally to the area to be treated and/or outside the surgical area. The at least one tool guide (3, 4, 5, 7, 14) and the at least one support are preferably immovably connected to each other so as to manufacture an individual single-use template. The invention also relates to a method for manufacturing such a device or template, an endoprosthesis suited for this purpose, a method for manufacturing such an endoprosthesis, and a surgical set consisting of said parts.
1083 Citations
23 Claims
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1. A method for manufacturing a device for resecting of bones with at least one tool guide and at least one support suitable for orienting the at least one tool guide, with the following steps:
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a) Preparation of images of the bone, wherein the bone needs to be prepared, b) Determination of linear contours of the bone at the images, c) Determination of areas on the bone that need to be prepared and selection of areas on the bone for positioning of the at least one tool guide at a joint element, and d) Manufacture of a template with the at least one support which enables the at least one tool guide to be oriented and positioned at the joint element or enables orientation or positioning of the at least one tool guide distally to the areas to be prepared and/or outside a surgical area at the joint element; and
to the at least one tool guide positioned and located relatively to the support;wherein the at least one support includes a surface conforming to the linear contours of the bone in the areas on the bone for positioning of the at least one tool guide. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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3. A method for manufacturing an endoprosthesis or for manufacturing a support for locating and positioning at least one tool guide to a joint element for attachment to a bone, with the following procedures:
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a) Preparation of images including linear contours of the bone, wherein the bone needs to be prepared, b) Determination of areas on the bone that need to be prepared and selection and positioning of at least one area on the bone that needs to be removed from the bone, c) Virtual correction of the images for an adjustment of contours of the bone to contours of a healthy bone, and d) Manufacture of an endoprosthesis or support including a surface conforming to the linear contours based at least in part on the areas on the bone that need to be prepared and the virtual correction of the images. - View Dependent Claims (4, 15, 16)
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17. A method for manufacturing a surgical guide for locating and positioning relative to a bone of a specific patient, the method comprising:
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obtaining images of the bone of the specific patient in sagittal or coronal planes of the bone; determining contours of the bone in the sagittal or coronal planes of the bone; designing shapes of a plurality of elongate supports to mate with the contours of the bone in each sagittal or coronal plane; and manufacturing the surgical guide to include the plurality of elongate supports having the shapes. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification