US2019388595A1PendingUtilityA1
Medical glass element
Est. expirySep 22, 2035(~9.2 yrs left)· nominal 20-yr term from priority
Inventors:Sabine Pichler-WilhelmOliwia MakarewiczChristian LautenschlaegerMareike Klinger-StrobelAndreas StallmachMathias W. R. Pletz
A61F 2/00A61L 31/14A61L 29/106A61L 31/16A61L 2300/404A61L 31/088A61L 29/14A61L 29/02A61L 2420/06G02C 7/049A61L 27/306C03C 3/093A61L 27/54C03C 4/0007C03C 10/0018C03C 8/04A61L 29/16C03C 2204/02A61L 31/026A61L 27/10A61L 27/12A61L 27/58A61L 27/105
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Claims
Abstract
A material that is less populated by biofilms than known materials and is well tolerated by the body is provided. The material is an element introducible into or attachable on a human or animal body and includes a glass and/or glass ceramic and/or ceramic material at least in some areas thereof, which inhibits the formation of biofilms and/or on which human or animal cells grow if the element is introduced into the human or animal body or attached thereto, wherein the glass and/or glass ceramic material comprises at least: SiO 2 in a range from 60 to 75 wt % and ZnO in a range from 1 to 7 wt %.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A structural article, comprising a material of glass, glass ceramic, or ceramic having
SiO 2 in a range from 60 to 75 wt %, ZnO in a range from 1 to 7 wt %, Al 2 O 3 in a range from 1 to 6 wt %, and wherein the material exhibits a property selected from the group consisting of antibacterial, cytocompatible, hemocompatible, inhibitory against biofilm formation, and a combination of two or more of the foregoing.
2 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material comprises:
SiO 2 in a range from 60 to 70 wt %, Al 2 O 3 in a range from 1 to 5 wt %, B 2 O 3 in a range from 0 to 10 wt %, TiO 2 in a range from 0 to 8 wt %, FeO in a range from 0 to 5 wt %, and Na 2 O in a range from 2 to 10 wt %, and/or K 2 O in a range from 3.5 to 10 wt %.
3 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material comprises:
a content of Ag of less than 0.3 wt %; and/or a content of P 2 O 5 of less than 0.5 wt %; and/or a content of F of less than 1 wt %.
4 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material is configured as an element introducible into a human or animal body.
5 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material is configured as an element implantable into a human or animal body.
6 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material is configured as an element attachable on a human or animal body.
7 . The structural article as claimed in claim 1 , wherein the glass and/or glass ceramic and/or ceramic material is configured as an element selected from the group consisting of an implant, a casing feedthrough of an implant, a vascular support, a stent, a catheter, an artificial heart valve, a casing of a transponder, a casing of a defibrillator, a casing of a pacemaker, a lab-on-chip, and a contact lens.
8 . The structural article of a material as claimed in claim 2 , wherein the material comprises
SiO 2 in a range from 62 to 66 wt %, Al 2 O 3 in a range from 3.8 to 4.5 wt %, B 2 O 3 in a range from 0 to 10 wt %, TiO 2 in a range from 3.5 to 4.5 wt %, ZnO in a range from 5 to 7 wt %, FeO in a range from 0.001 to 0.005 wt %, Na 2 O in a range from 5.9 to 6.5 wt %, K 2 O in a range from 8.3 to 9.1 wt %, and SeO 2 in a range from 0 to 0.04 wt %.
9 . The structural article of claim 1 , wherein the property is antibacterial.
10 . The structural article of claim 1 , wherein the property is cytocompatible.
11 . The structural article of claim 1 , wherein the property is hemocompatible.
12 . The structural article of claim 1 , wherein the property is inhibitory against biofilm formation.Cited by (0)
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