-
公开(公告)号：US20250073041A1
公开(公告)日：2025-03-06
申请号：US18948855
申请日：2024-11-15
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Matthew P. Poggie , Nicholas Nai Guang Dong
Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
-
公开(公告)号：US20240382313A1
公开(公告)日：2024-11-21
申请号：US18792007
申请日：2024-08-01
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Zongtao Zhang , Daniel E. Lawrynowicz , Shi-Shen Yau
Abstract: An orthopedic prosthetic joint comprising a joint couple having a first bearing surface made of a poly aryl ether ketone (PAEK) and a second joint component having a second bearing made of a polymer that is softer than the PAEK such as UHMWPE the first and second bearing surfaces in sliding engagement with one another.
-
公开(公告)号：US12076246B2
公开(公告)日：2024-09-03
申请号：US15879886
申请日：2018-01-25
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Zongtao Zhang , Daniel E. Lawrynowicz , Shi-Shen Yau
CPC classification number: A61F2/32 , A61F2/30767 , A61F2/38 , A61L27/16 , A61L27/18 , A61F2002/30014 , A61F2002/30016 , A61F2002/30067 , A61F2002/30563 , A61F2002/30934 , A61F2/40 , A61F2/42 , A61F2/44 , A61F2250/0018 , A61F2250/0019 , A61L27/18 , C08L71/00 , A61L27/16 , C08L23/06 , A61L27/18 , C08L75/04 , A61L27/18 , C08L77/00
Abstract: An orthopedic prosthetic joint comprising a joint couple having a first bearing surface made of a poly aryl ether ketone (PAEK) and a second joint component having a second bearing made of a polymer that is softer than the PAEK such as UHMWPE the first and second bearing surfaces in sliding engagement with one another.
-
4.发明授权公开(公告)号：US09776246B2
公开(公告)日：2017-10-03
申请号：US14553343
申请日：2014-11-25
Applicant: Howmedica Osteonics Corp.
Inventor： Daniel E. Lawrynowicz , Aiguo Wang , Zongtao Zhang , Haitong Zeng
IPC: B22F3/115 , B22F3/08 , C23C4/00 , C23C4/04 , C23C4/06 , C23C4/067 , C23C4/10 , C23C4/12 , C23C4/123 , C23C4/126 , C23C4/129 , C23C4/131 , C23C4/134 , C23C4/137 , B22F9/08 , A61L27/42 , B22D23/00 , B22F1/00 , C22C32/00 , A61F2/02
CPC classification number: B22F9/082 , A61F2/02 , A61L27/427 , B22D23/00 , B22F1/0007 , B22F2009/0848 , B22F2302/10 , C22C32/0052
Abstract: A method of fabricating a material having a high concentration of a carbide constituent. The method may comprise adding a carbide source to a biocompatible material in which a weight of the carbide source is at least approximately 10% of the total weight, heating the carbide source and the biocompatible material to a predetermined temperature to melt the biocompatible material and allow the carbide source to go into solution to form a molten homogeneous solution, and impinging the molten homogeneous solution with a high pressure fluid to form spray atomized powder having carbide particles. The size of a particle of carbide in the atomized powder may be approximately 900 nanometers or less. The biocompatible material may be cobalt chrome, the carbide source may be graphite, and the fluid may be a gas or a liquid.
-
公开(公告)号：US09181409B2
公开(公告)日：2015-11-10
申请号：US14174035
申请日：2014-02-06
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , John H. Dumbleton , Aaron Essner , Shi-Shen Yau
CPC classification number: C08J3/28 , A61L27/16 , C08J3/247 , C08L23/06 , C08L2312/06
Abstract: A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part.
Abstract translation: 制备改进的聚乙烯，特别是超高分子量聚乙烯的方法利用连续的照射和退火方法形成高度交联的聚乙烯材料。 在每次照射之后使用顺序照射，然后进行顺序退火，允许在一系列剂量中的每个剂量的照射相对较低，同时实现足够高的交联材料的总剂量。 该方法可以应用于预成型材料，例如由聚乙烯树脂制成的棒或棒或片，或者可以施加到成品聚乙烯部分上。
-
Patent Agency Ranking
公开(公告)号：US20140194548A1
公开(公告)日：2014-07-10
申请号：US14174035
申请日：2014-02-06
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , John H. Dumbleton , Aaron Essner , Shi-Shen Yau
IPC: C08J3/28
CPC classification number: C08J3/28 , A61L27/16 , C08J3/247 , C08L23/06 , C08L2312/06
Abstract: A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part.
Abstract translation: 制备改进的聚乙烯，特别是超高分子量聚乙烯的方法利用顺序的照射和退火方法形成高度交联的聚乙烯材料。 在每次照射之后使用顺序照射，然后进行顺序退火，允许在一系列剂量中的每个剂量的照射相对较低，同时实现足够高的交联材料的总剂量。 该方法可以应用于预成型材料，例如由聚乙烯树脂制成的棒或棒或片，或者可以施加到成品聚乙烯部分上。
-
公开(公告)号：US20250161060A1
公开(公告)日：2025-05-22
申请号：US19028645
申请日：2025-01-17
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Matthew P. Poggie , Nicholas Nai Guang Dong
Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
-
公开(公告)号：US20240293233A1
公开(公告)日：2024-09-05
申请号：US18657278
申请日：2024-05-07
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Matthew P. Poggie , Nocholas Nai Guang Dong
CPC classification number: A61F2/389 , A61F2/30767 , A61F2/30907 , A61F2/3877 , A61F2/461 , A61F2002/30011 , A61F2002/30179 , A61F2002/30322 , A61F2002/30451 , A61F2/30749 , A61F2002/30878 , A61F2002/30879 , A61F2002/30884 , A61F2002/30891 , A61F2002/30892 , A61F2002/3092 , A61F2002/3093 , A61F2/3094 , A61F2002/3097 , A61F2002/4619 , A61F2002/4641
Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
-
公开(公告)号：US20190314160A1
公开(公告)日：2019-10-17
申请号：US16429807
申请日：2019-06-03
Applicant: Howmedica Osteonics Corp.
Inventor： Aiguo Wang , Matthew P. Poggie , Nicholas Nai Guang Dong
Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
-
公开(公告)号：US09763791B2
公开(公告)日：2017-09-19
申请号：US13760449
申请日：2013-02-06
Applicant: Howmedica Osteonics Corp.
Inventor： Daniel E. Lawrynowicz , Haitong Zeng , Zongtao Zhang , Aiguo Wang , Keenan Michael Hanson
CPC classification number: A61F2/3609 , A61F2/30767 , A61F2002/30051 , A61F2002/30107 , A61F2002/30332 , A61F2002/30973 , A61F2002/3611
Abstract: A prosthetic head for a femoral component has a metal shell with a tapered cavity. The shell has a part-spherical outer surface defining an inner portion terminating in an open end. A polymeric material completely fills the inner portion of the hollow shell extending from an inner surface of the shell to the open end. The polymeric material includes a conically tapered socket centered about the polar axis intermediate ends of the open end wherein the shell is a hollow titanium shell having an inner surface with a porous structure for receiving a portion of the polymeric material. The hollow titanium shell inner surface has at least one rib extending inwardly toward the conically tapered socket.
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.025 seconds)
