Patient specific alignment guide with cutting surface and laser indicator
First Claim
1. A patient-specific guiding system for guiding an instrument relative to a portion of an anatomical feature of a patient, the patient-specific guiding system comprising:
- a patient-specific guide having;
a first portion having a first patient-specific inner surface that is configured to conform to and mate with a first surface of the anatomical feature in only one position and an outer surface opposite the first patient-specific inner surface, the first portion including a guide surface for use in guiding the instrument relative to the anatomical feature and a fixation feature for coupling the first portion to the first surface of the anatomical feature; and
a second portion having a second patient-specific inner surface that is configured to conform to and mate with a second surface of the anatomical feature in only one position and an outer surface opposite the second patient-specific inner surface, the second portion being removably connected to the first portion;
wherein the first and second patient-specific inner surfaces each have a three dimensional contour that is configured to nest and closely conform to the first and second surfaces, respectively, of the anatomical features, to align the guide relative to the anatomical feature; and
wherein the first and second portions are non-adjustably conformable with the first and second surfaces when the first and second portions are connected to each other to facilitate engagement in a single desired orientation; and
wherein the guide surface is an opening in the first patient-specific inner surface that is configured to receive the instrument.
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Abstract
A patient-specific guiding system for guiding an instrument relative to a portion of an anatomical feature of a patient. The patient-specific guiding system includes a patient-specific guide. The guide includes a first portion having a first patient-specific inner surface that conforms to a first surface of the anatomical feature and an outer surface opposite the first patient-specific inner surface. The first portion also includes a guide surface for use in guiding the instrument relative to the anatomical feature. The guide also includes a second portion having a second patient-specific inner surface that conforms to a second surface of the anatomical feature and an outer surface opposite the second patient-specific inner surface. The second portion is removably connected to the first portion.
1672 Citations
20 Claims
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1. A patient-specific guiding system for guiding an instrument relative to a portion of an anatomical feature of a patient, the patient-specific guiding system comprising:
a patient-specific guide having; a first portion having a first patient-specific inner surface that is configured to conform to and mate with a first surface of the anatomical feature in only one position and an outer surface opposite the first patient-specific inner surface, the first portion including a guide surface for use in guiding the instrument relative to the anatomical feature and a fixation feature for coupling the first portion to the first surface of the anatomical feature; and a second portion having a second patient-specific inner surface that is configured to conform to and mate with a second surface of the anatomical feature in only one position and an outer surface opposite the second patient-specific inner surface, the second portion being removably connected to the first portion; wherein the first and second patient-specific inner surfaces each have a three dimensional contour that is configured to nest and closely conform to the first and second surfaces, respectively, of the anatomical features, to align the guide relative to the anatomical feature; and wherein the first and second portions are non-adjustably conformable with the first and second surfaces when the first and second portions are connected to each other to facilitate engagement in a single desired orientation; and wherein the guide surface is an opening in the first patient-specific inner surface that is configured to receive the instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A guiding system comprising:
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a first component configured to extend along a surface of a bone, the first component comprising; at least one fixation feature disposed on the first component; a first coupling feature; a cutting guide surface located between the at least one fixation feature and the first coupling feature; and a first interior surface that is patient-specific so as to be configured to conform to the surface of the bone; and a second component configured to engage a portion of the bone to be resected, the second component comprising; a second coupling feature configured to interface with the first coupling feature; and a second interior surface that is patient-specific so as to be configured to conform to an anatomical surface of the portion of the bone to be resected, wherein the second component does not include any fixation features; wherein the second interior surface is configured to engage the anatomic surface to position the at least one fixation feature at a patient-specific location on the bone when the first component and the second component are coupled together; and wherein the second component separable from the first component at the interface between the first and second coupling features; wherein the first and second interior surfaces each have a three-dimensional contour that is configured to nest and closely conform to the surface and the anatomical surface, respectively, of the bone, to align the guide relative to the anatomical surface; wherein the surface comprises an anterior surface of a distal portion of a femur and the anatomical surface comprises an inferior surface of the distal portion of the femur. - View Dependent Claims (11, 12, 13, 14, 15, 16, 20)
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17. A guiding system comprising:
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a first portion having a first interior surface including a first three-dimensional contour that is configured to nest and closely conform to an anterior surface of a femur, the first portion comprising; at least one through-bore extending through the first portion; a distal side surface; a pin extending through the through-bore to form a fixation feature; and a cutting guide slot defined by an opening extending through the first portion and disposed between the at least one through-bore and the distal side surface; and a second portion having a second interior surface including a second three-dimensional contour that is configured to nest and closely conform to a distal end of the femur, the second portion comprising; a proximal side surface configured to join with the distal side surface; wherein the second portion is separable from the first portion along a joint formed by a coupling feature and configured to extend along the anterior surface of the femur; wherein the first and second portions are configured to position the cutting guide slot at a patient-specific location on the anterior surface of the femur, and wherein the second portion does not include any fixation features. - View Dependent Claims (18, 19)
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Specification