# US 2013/0158671 A1 · Method And Apparatus For Manufacturing An Implant

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- Number: US 2013/0158671 A1
- Document ID: US20130158671A1
- Status: Published application
- Kind: A1
- Application number: 13/766,419
- Filed: 2013-02-13
- Published: 2013-06-20
- Earliest claimed: 2007-04-17
- Assignees: Biomet Manufacturing, LLC
- Inventors: Brian A. UTHGENANNT; Robert Metzger; Nathan E. Belcher; Joshua B. Catanzarite
- Web page: https://patentgrep.com/patent/US20130158671A1

## CPC

- A61B 17/1675: {for the knee}
- A61B 17/1764: {for the knee}
- A61B 90/96: using barcodes
- A61B 90/98: using electromagnetic means, e.g. transponders
- A61F 2/30942: {for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques}
- A61F 2/38: for elbows or knees
- A61F 2/3859: {Femoral components}
- B33Y 50/00: Data acquisition or data processing for additive manufacturing
- B33Y 80/00: Products made by additive manufacturing
- G16H 50/50: for simulation or modelling of medical disorders
- G16Z 99/00: Subject matter not provided for in other main groups of this subclass
- A61B 17/155: {Cutting femur}
- A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations
- A61B 2017/00526: {Methods of manufacturing}
- A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations}
- A61F 2002/30617: {Visible markings for adjusting, locating or measuring}
- A61F 2002/30708: {Means for distinguishing between left-sided and right-sided devices, Sets comprising both left-sided and right-sided prosthetic parts}
- A61F 2002/3071: {Identification means; Administration of patients}
- A61F 2002/30884: {Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity}
- A61F 2002/30948: {using computerized tomography, i.e. CT scans}
- A61F 2002/30952: {using CAD-CAM techniques or NC-techniques}
- A61F 2002/30953: {using a remote computer network, e.g. Internet}
- A61F 2002/3096: {trimmed or cut to a customised size}
- A61F 2002/30962: {using stereolithography}
- A61F 2002/3863: {Condyles fitted on an anchored base}
- A61F 2002/4633: {for selection of endoprosthetic joints or for pre-operative planning}
- A61F 2250/0084: Means for distinguishing between left-sided and right-sided devices; Sets comprising both left-sided and right-sided prosthetic parts
- A61F 2250/0085: Identification means; Administration of patients
- A61F 2250/0097: Visible markings, e.g. indicia
- Y10T 29/49: Method of mechanical manufacture
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16Z: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An orthopedic device includes a femoral implant having a non-custom internal bone engagement surface. The femoral implant includes at least nine parameters adjusted preoperatively to correspond to a specific patient. The parameters can include patient-specific lengths, such as, for example, medial and lateral condyle widths and notch height, and patient-specific medial and lateral angles.

## Claims

### Claim 1

An orthopedic device comprising:
a femoral implant having a non-custom internal bone engagement surface, the femoral implant further including at least nine parameters adjusted preoperatively to correspond to a specific patient.

### Claim 2 (depends on 1)

The orthopedic device of claim 1, wherein the parameters include three patient-specific lengths.

### Claim 3 (depends on 2)

The orthopedic device of claim 2, wherein the patient-specific lengths include a medial condyle width.

### Claim 4 (depends on 2)

The orthopedic device of claim 2, wherein the patient-specific lengths include a lateral condyle width.

### Claim 5 (depends on 2)

The orthopedic device of claim 2, wherein the patient-specific lengths include a notch height.

### Claim 6 (depends on 1)

The orthopedic device of claim 1, wherein the parameters include six patient-specific angles.

### Claim 7 (depends on 1)

The orthopedic device of claim 1, wherein the six patient-specific angles include three medial angles and three lateral angles.

### Claim 8 (depends on 1)

The orthopedic device of claim 1, further comprising a surgical kit including the femoral implant and a patient-specific alignment guide.

### Claim 9 (depends on 9)

The orthopedic device of claim 9, wherein the surgical kit includes reusable instruments.

### Claim 10 (depends on 8)

The orthopedic device of claim 8, wherein the surgical kit includes a drill guide and a cutting block.

### Claim 11 (depends on 8)

The orthopedic device of claim 8, wherein the surgical kit includes a tracking tag.

### Claim 12 (depends on 8)

The orthopedic device of claim 8, wherein the patient-specific alignment guide includes a removable tracking tag.

### Claim 13

An orthopedic device comprising:
a femoral implant having a non-custom internal engagement surface, the femoral implant further including three patient-specific lengths, three patient specific medial angles and three patient-specific lateral angles, wherein the lengths and medial and lateral angles are selected preoperatively based on a three-dimensional image of an anatomy of a patient to match the anatomy of the patient.

### Claim 14 (depends on 13)

The orthopedic device of claim 13, wherein the patient specific lengths include a medial condyle width, a lateral condyle width and a notch height.

### Claim 15 (depends on 13)

The orthopedic device of claim 13, further comprising a surgical kit including the femoral implant and a patient-specific alignment guide including a removable tracking tag.

### Claim 16 (depends on 13)

The orthopedic device of claim 13, further comprising a disposable instrument kit including only disposable instruments.

### Claim 17 (depends on 16)

The orthopedic device of claim 16, wherein the instrument kit includes disposable patient-specific alignment guides.