Systems and Methods for Providing A Femoral Component

Content Provider	The Lens
Abstract	Systems and methods for providing deeper knee flexion capabilities. In some instances, such systems and methods include a femoral knee replacement component that includes an articular surface, a first interior surface, and a second interior surface, wherein the first and second interior surfaces run substantially parallel to each other. In some cases, the articular surface includes an anterior condylar extension that is configured to replace an anterior articular cartilage of a femur such that the anterior extension is configured to terminate adjacent to a proximal limit of the anterior articular cartilage of the femur. Other implementations are also discussed.
Related Links	https://www.lens.org/lens/patent/009-554-773-100-495/frontpage
Language	English
Publisher Date	2019-05-09
Access Restriction	Open
Content Type	Text
Resource Type	Patent
Jurisdiction	United States of America
Date Applied	2018-06-18
Applicant	Samuelson Connor E Samuelson Kent M
Application No.	201816011493
Claim	A knee prosthesis comprising: a femoral component for replacing at least a portion of a distal end of a femur, the femoral component comprising: posterior medial condylar component; a medial femoral articular surface on the posterior medial condylar component; and a proximal extension that extends at a proximal portion of the posterior medial condylar component, wherein an articular surface of the proximal extension provides an indented articulation surface that is configured to articulate against a portion of at least one of a tibia and a tibial component. The knee prosthesis of claim 1 , wherein the femoral component includes a modular attachment, and wherein the proximal extension is formed on the modular attachment. The knee prosthesis of claim 1 , wherein a portion of the femoral component is configured to seat with in a concave, resectioned portion of a popliteal surface of the femur. The knee prosthesis of claim 1 , wherein the femoral component comprises a medial condyle, a lateral condyle, and a patellar groove disposed between the medial and lateral condyles, wherein a medial-lateral width of an articulation surface of the lateral condyle is approximately 75% or less of a medial-lateral width of an articulation surface of the medial condyle. The knee prosthesis of claim 5 , wherein the patellar groove extends medially at an angle from a proximal anterior portion of the femoral component to a distal anterior portion of the femoral component and to a distal posterior portion of the femoral component. The knee prosthesis of claim 1 , wherein the knee prosthesis includes a tibial component comprising a raised articulation surface that is configured to articulate against the articular surface of the proximal extension. The knee prosthesis of claim 1 , wherein the knee prosthesis includes a tibial component, and wherein a lateral condylar surface of the tibial component comprises a concave articulation surface having a center or rotation with a lowest point disposed from a posterior edge of the tibial component by between about 18% and about 30% of a total anteroposterior dimension of the tibial component. The knee prosthesis of claim 2 , wherein the modular attachment includes a first portion roughly perpendicular to a second portion, wherein the first portion of the modular attachment includes a flanged articular area, and wherein the second portion includes an elongated stem. The knee prosthesis of claim 8 , wherein the elongated stem comprises a first side and a second side, and wherein the elongated stem comprises a nodule on at least one of the first side and the second side. The knee prosthesis of claim 1 , wherein the indented articulation surface of the proximal extension comprises a concave articulation surface. A method for placing a femoral component on a femur, the method comprising: resecting articular cartilage from a distal portion of the femur, wherein the articular cartilage is removed from at least one of the femur's anterior condyles to within about 0 mm and about 15 mm of a proximal limit of the articular cartilage; and positioning the femoral component onto the femur so that an anterior-most extension of the femoral component terminates within about 15 mm of the proximal limit. The method of claim 11 , further comprising preparing the femur to receive the femoral component by resecting bone from a popliteal surface of the femur. The method of claim 11 , wherein the femoral component comprises a first interior surface and a second interior surface, and wherein the first and second interior surfaces diverge from being parallel with each other by between about 0° and about 45°. The method of claim 11 , wherein the femoral component comprises a first interior surface and a second interior surface, and wherein the first and the second interior surfaces diverge from being parallel with each other by between approximately 5° and approximately 10°. The method of claim 13 , wherein the first interior surface corresponds to an anterior chamfer cut on the femur. The method of claim 13 , wherein the second interior surface corresponds to a full flexion cut at an antero-proximal portion of a posterior condyle of the femur. The method of claim 11 , wherein the femoral component comprises a complete femoral knee prosthesis. The method of claim 11 , wherein the femoral component comprises a unicompartmental femoral knee prosthesis. The method of claim 11 , further comprising press-fitting the femoral component to the resectioned femur. The method of claim 11 , wherein the femoral component further comprises a concave articulation surface disposed near a posterior and proximal surface of the femoral component, wherein the concave articulation surface is configured to articulate against at least one of a tibia and a tibial component.
CPC Classification	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 Diagnosis; Surgery; Identification
Extended Family	009-004-244-942-244 088-037-788-332-117 048-548-162-884-001 195-149-062-060-410 054-632-798-795-775 016-899-768-267-124 199-925-063-073-226 038-678-474-155-441 000-317-364-695-778 146-984-917-303-214 152-217-542-846-609 164-502-465-792-763 007-822-283-517-680 010-307-225-661-758 190-861-336-836-309 102-303-176-572-608 110-998-861-114-625 174-950-308-062-304 150-637-633-356-419 012-631-048-492-216 116-384-554-797-958 050-034-099-180-506 074-303-839-284-276 066-737-890-185-255 075-276-331-334-004 126-103-981-172-038 184-811-758-144-561 151-594-124-192-160 172-875-854-979-961 187-024-387-723-05X 109-588-683-287-269 064-495-568-620-034 191-875-444-006-437 164-108-826-607-768 146-279-325-891-901 146-953-672-744-641 009-323-452-519-502 051-417-832-790-900 077-619-203-270-653 042-835-671-809-53X 121-692-737-821-717 106-876-001-029-711 156-685-653-137-883 035-675-415-830-862 072-529-785-546-961 037-289-389-149-789 072-654-361-920-983 136-476-083-254-415 040-375-020-526-002 051-600-243-435-463 069-943-950-722-427 020-160-500-250-515 036-073-333-476-394 009-554-773-100-495 029-949-450-197-757 074-528-367-202-46X 158-184-683-388-146 034-940-383-019-888 130-147-213-436-247 020-403-795-521-08X 156-133-631-490-277 160-763-098-068-246 017-562-563-294-172 092-823-668-316-617 137-555-811-785-866 103-886-911-349-095 126-424-219-947-863 084-321-447-953-508 132-889-519-247-866 151-404-468-326-038 101-598-518-925-720 181-178-142-712-655 139-830-021-890-326 111-632-523-616-841 004-614-695-408-493 140-778-573-170-204 101-592-287-586-516 172-841-009-937-267 021-289-039-870-831 075-586-574-205-550 151-392-946-361-650 196-173-177-150-906 076-906-332-901-701 095-584-320-476-226 017-673-683-394-532 116-536-769-663-578 038-591-838-355-013 039-377-404-633-281 108-465-683-558-608 148-524-769-944-524 071-484-202-799-607 144-389-524-082-538 077-065-794-301-965 125-959-985-443-888 105-210-265-421-904 176-279-288-732-036 162-302-277-061-307 051-844-820-322-76X 066-341-948-498-828 093-746-629-262-775 187-465-328-339-633 058-382-849-267-347 114-359-835-019-493 129-330-841-025-991 070-981-960-030-726 141-395-028-467-246 168-069-684-978-091
Patent ID	20190133787
Inventor/Author	Samuelson Connor E Samuelson Kent M
IPC	A61F2/46 A61B17/15 A61B17/16 A61F2/30 A61F2/38
Status	Inactive
Simple Family	017-562-563-294-172 126-424-219-947-863 172-875-854-979-961 160-763-098-068-246 126-103-981-172-038 048-548-162-884-001 076-906-332-901-701 164-108-826-607-768 191-875-444-006-437 064-495-568-620-034 116-536-769-663-578 038-591-838-355-013 054-632-798-795-775 039-377-404-633-281 146-953-672-744-641 016-899-768-267-124 051-417-832-790-900 148-524-769-944-524 101-598-518-925-720 038-678-474-155-441 077-065-794-301-965 146-984-917-303-214 156-685-653-137-883 181-178-142-712-655 072-529-785-546-961 164-502-465-792-763 007-822-283-517-680 072-654-361-920-983 176-279-288-732-036 004-614-695-408-493 162-302-277-061-307 066-341-948-498-828 174-950-308-062-304 093-746-629-262-775 009-554-773-100-495 029-949-450-197-757 058-382-849-267-347 150-637-633-356-419 012-631-048-492-216 129-330-841-025-991 034-940-383-019-888 020-403-795-521-08X
CPC (with Group)	A61F2/30734 A61B17/155 A61F2/30965 A61F2/38 A61F2/3859 A61F2/3877 A61F2/389 A61F2002/30116 A61F2002/30245 A61F2002/30604 A61F2002/30934 A61F2002/3895 A61F2230/0006 A61F2230/0071 A61F2310/00011 A61F2310/00179 A61F2310/00329 A61F2310/00353 A61F2/46 A61B17/1675 A61F2/30756 A61F2/30767 A61F2/3886 A61F2002/30607 A61F2002/3863
Issuing Authority	United States Patent and Trademark Office (USPTO)
Kind	Patent Application Publication