Patent ID: 11903875
Assignee: VALSIGNA GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A glaucoma implant device (1) comprising a connection portion (21) and a mesh portion (11) coupled to each other,
wherein said connection portion (21) is able to direct aqueous humour from Schlemm canal and anterior chamber to said mesh portion (11) and said mesh portion (11) is able to drain aqueous humour into subconjunctival or suprachoroidal space when said glaucoma implant device (1) is implanted,
wherein said mesh portion (11) is defined by a plurality of polygonal cells (111) arranged side-by-side in contact to each other according to a predefined number of rows and a predefined number of columns,
wherein each of said polygonal cells (111) has perimetral sides (1111) and a through opening in-between defining a liquid collecting area (2111),
wherein each of said perimetral sides (1111) defines an inner duct (1111′), said inner ducts (1111′) being in hydraulic connection to each other,
wherein one or more of said inner ducts (1111′) are in hydraulic connection with said connection portion (21) allowing said directing aqueous humour from Schlemm canal to said mesh portion (11), and
wherein each of said polygonal cells (111) is provided with at least an opening (3111) at a perimetral side (1111) able to connect said inner duct to said liquid collecting area (2111) allowing said draining of aqueous humour into subconjunctival or suprachoroidal space by flowing out from said inner ducts to said liquid collecting areas (2111); wherein each of said polygonal cell (111) is provided with an outlet duct (112) departing from said inner duct (1111′) and ending with said opening (3111) and extending in said liquid collecting area (2111), and wherein said plurality of polygonal cells (111) includes:
a first group of polygonal cells provided with a first group of said outlet ducts having a first length and a first diameter; and at least a second group of polygonal cells provided with a second group of said outlet ducts having a second length different from said first length and a second diameter different from said first diameter;
wherein, said first group of outlet ducts and second group of outlet ducts are configured such that said mesh portion (11) has a predefined hydraulic resistance threshold whereby the first length is greater than the second length and the first group of polygonal cells is nearer to the connection portion (21) than the second group of polygonal cells.