公开(公告)号：US20230355285A1

公开(公告)日：2023-11-09

申请号：US17920653

申请日：2020-04-22

Applicant: ARCTIC BIOMATERIALS OY

Inventor： Mikko HUTTUNEN ,  Harri HEINO ,  Miika LEHTOLA ,  Ville ELLÄ ,  Mika LAAKKONEN

IPC: A61B17/86 ,  A61L31/12

CPC classification number: A61B17/866 ,  A61L31/128 ,  A61B17/846

Abstract: A method is disclosed for manufacturing a fiber-reinforced implant structure. A fiber-reinforced rigid insert is provided, comprising continuous fibers impregnated with a first thermoplastic polymer. A molding cycle is performed by overmolding. The insert is placed into a mold cavity; and a second thermoplastic polymer in melted form is injection or compression molded into the mold cavity. The insert is thus at least partly covered by the second thermoplastic polymer. The second thermoplastic polymer injection or compression in the mold cavity is cooled, thereby obtaining a molded fiber-reinforced implant structure containing the at least partly covered insert. The insert is in a predefined location in the mold cavity during said injection or compression molding and during said cooling. The first thermoplastic polymer and the second thermoplastic polymer are the same or different. Also disclosed is an implant structure, and an implant comprising said implant structure.

公开(公告)号：US20200323573A1

公开(公告)日：2020-10-15

申请号：US16756271

申请日：2018-10-15

Applicant: ARCTIC BIOMATERIALS OY

Inventor： Harri HEINO ,  Timo LEHTONEN ,  Mikko HUTTUNEN ,  Miika LEHTOLA

IPC: A61B17/80 ,  A61L31/02 ,  A61L31/12 ,  A61L31/14

Abstract: The present invention provides an orthopedic implant comprising a continuous reinforced composite filament in a freely predetermined fiber orientation in multiple continuous successive layers, wherein the continuous reinforced composite filament comprises a bioabsorbable polymer matrix and a continuous bioabsorbable reinforcing fiber or fiber bundle, and whereby the continuous bioabsorbable reinforcing fiber or fiber bundle of consecutive layers at least partly intermingles and/or intertwines forming a three dimensionally interlocked continuous fiber structure.

公开(公告)号：US20240001630A1

公开(公告)日：2024-01-04

申请号：US18255091

申请日：2020-11-30

Applicant: ARCTIC BIOMATERIALS OY

Inventor： Mikko HUTTUNEN ,  Vesa VUORISALO ,  Harri HEINO

IPC: B29C70/46 ,  B29C43/36 ,  B29C43/52 ,  B29C35/02 ,  B29C70/14

CPC classification number: B29C70/46 ,  B29C43/3607 ,  B29C43/361 ,  B29C43/52 ,  B29C35/02 ,  B29C70/14 ,  B29C2043/3602 ,  B29K2105/253

Abstract: A method of forming a fiber reinforced article comprising following steps: 101) providing a composite preform comprising of thermoplastic polymer matrix and reinforcing fibers, wherein the preform comprises an initial volume and initial fiber orientation, 102) loading the preform inside a radial molding apparatus comprising of at least three adjacent die segments next to each other forming a mold cavity in an initial position having an initial volume, 103) molding the preform by moving the die segments, which are in direct contact with each other during the initial position and movement and a compressed position, and which are perpendicular to a common longitudinal axis of the preform, wherein the initial volume of the mold cavity decreases and the die segments compress the preform to a form defined by the mold cavity in the compressed position having a final volume, which is smaller or equal to the initial volume of the preform, 104) opening the mold cavity, and 105) removing the obtained fiber reinforced article, which comprises a tailored fiber orientation, from the mold cavity, wherein the continuous reinforcing fibers follow to a surface contour of said article.