US 12,391,015 B2
Production device and process for producing an intraocular lens blank, intraocular lens blank
Thorben Badur, Oberkochen (DE); Stephen Q. Zhou, Oberkochen (DE); Minh Cao, Oberkochen (DE); Christoph Zumbach, Oberkochen (DE); Vincent Sunio, Oberkochen (DE); Alex Pfotenhauer, Oberkochen (DE); and Karen Hong, Oberkochen (DE)
Assigned to CARL ZEISS MEDITEC AG, Jena (DE)
Appl. No. 18/834,285
Filed by CARL ZEISS MEDITEC AG, Jena (DE)
PCT Filed Feb. 1, 2022, PCT No. PCT/US2022/014746
§ 371(c)(1), (2) Date Jul. 30, 2024,
PCT Pub. No. WO2023/149862, PCT Pub. Date Aug. 10, 2023.
Prior Publication US 2025/0107885 A1, Apr. 3, 2025
Int. Cl. B29D 11/00 (2006.01); A61F 2/16 (2006.01); B29D 11/02 (2006.01)
CPC B29D 11/023 (2013.01) [A61F 2/16 (2013.01); A61F 2240/004 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A production device for producing an intraocular lens blank, with a first mold half, which has an outer ring, and a second mold half, which have a spacing state, in which the second mold half is arranged outside the outer ring, and a proximity state, in which the second mold half is clamped in the outer ring as a result of inserting the second mold half in an inserting direction, and the first mold half and the second mold half delimit a molding space in which a curable liquid is intended to be arranged for producing the intraocular lens blank, wherein the first mold half has a central region of the first mold half and the second mold half has a central region of the second mold half, the central region of the first mold half and the central region of the second mold half respectively having the form of one of the two end faces of an optical body of the intraocular lens blank, wherein the end faces are those faces of the optical body at which light passing through the lens is refracted in order to carry out optical imaging, and the second mold half has a bellows, which extends fully circumferentially around the central region of the second mold half in a circumferential direction with respect to an optical axis of the optical body and has a first bellows portion and a second bellows portion, which is arranged directly outside the first bellows portion in a radial direction with respect to the optical axis and, in the spacing state, forms with the first bellows portion a first angle (α), which is smaller than 180°, and, in the proximity state, forms with the first bellows portion a second angle (β), which is smaller than the first angle.