Patents Assigned to Mathys AG Bettlach
-
Patent number: 11957590Abstract: A shell (1) for a prosthetic joint to be driven into a bone substance. The shell having an outer lateral surface (4) which is convexly curved in cross section and on which a plurality of ribs (5) is arranged. All ribs extend in the same direction at a preferably increasing gradient angle of 45° to 85° at the equatorial end (6) to a pole-side end (7). The cumulative flank projection area of all ribs (5) corresponds to at least a fifth of the entire outer lateral surface. As a result of this measure, a very high primary stability is achieved once the shell has been driven in, the shell being screwed into the bone substance very precisely and without bone material being sheared off. This arrangement can also be applied, similarly, to a concavely curved inner lateral surface.Type: GrantFiled: November 19, 2019Date of Patent: April 16, 2024Assignee: MATHYS AG BETTLACHInventors: Christian Gugler, Armin Jossi, Martin Schmidt, Andreas Meyenhofer
-
Patent number: 11589993Abstract: A hemi-prosthesis implant comprises a replacement-joint part with an articulation surface for tribological pairing with a joint surface of a natural joint counterpart. The articulation surface is embodied with a coating applied on a substrate. The substrate provides a relief for the adhesion of the coating. The relief may comprise one or more of a plurality of grooves, a plurality of teeth, a ribbing, and a roughened surface. The relief may be embodied entirely or partially outside the articulation surface. The replacement joint part may optionally comprise a ventilation feature, and the articulation surface may be formed by injection molding on the substrate. The hemi-prosthesis implant may be part of an implant set that includes both a hemi-prosthesis implant and a total prosthesis implant, either of which can be chosen intraoperatively.Type: GrantFiled: January 22, 2019Date of Patent: February 28, 2023Assignee: Mathys AG BettlachInventors: Reto Lerf, Stefan Scheurer
-
Patent number: 11377352Abstract: The method is for producing porous calcium deficient hydroxyapatite granules and comprises the following steps: (a) subjecting granules of calcium sulfate anhydrous (CSA), calcium sulfate dihydrate (CSD) or calcium sulfate hemihydrate (CSH), the granules comprising interconnected pores with a minimum mean diameter of 3 microns, to a first incubation in an alkaline aqueous solution having a pH-value of less than 10 and containing PO43? ions; (b) subjecting the granules to a second incubation in an alkaline aqueous solution having a pH-value of more than 10 and optionally PO43? ions; (c) filtering and drying the obtained porous granules of calcium deficient hydroxyapatite; and wherein (d) the sum of the amounts of PO43? ions present in the first and second incubation is at least as large as the amount of SO42? ions of the granules used for step (a).Type: GrantFiled: October 16, 2018Date of Patent: July 5, 2022Assignees: Bioventus, LLC, Mathys AG BettlachInventors: Alex De Gasparo, Noemie Van Garderen, Marc Bohner, Howard Seeherman, Eric Vanderploeg
-
Patent number: 11033379Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).Type: GrantFiled: April 17, 2018Date of Patent: June 15, 2021Assignee: Mathys AG BettlachInventors: Daniel Delfosse, Alessandro De Cesaris, Clemens Dransfeld, Christian Rytka
-
Patent number: 10807869Abstract: The method is for producing porous calcium deficient hydroxyapatite granules and comprises the following steps: (a) subjecting granules of calcium sulfate anhydrous (CSA), calcium sulfate dihydrate (CSD) or calcium sulfate hemihydrate (CSH) to an incubation in an alkaline aqueous solution having a pH-value of less than 10 and containing PO43? ions; whereby the granules of calcium sulfate anhydrous (CSA), calcium sulfate dihydrate (CSD) or calcium sulfate hemihydrate (CSH) comprise interconnected pores with a minimum mean diameter of 3 microns; (b) washing with water the granules obtained after incubation of step a); (c) drying the obtained porous granules of calcium deficient hydroxyapatite; whereby (d) the amount-of PO43? ions present in the incubation of step a) is at least as large as the amount of SO42? ions of the granules used for step (a).Type: GrantFiled: October 4, 2018Date of Patent: October 20, 2020Assignees: Mathys AG Bettlach, Bioventus, LLCInventors: Alex De Gasparo, Noemie Van Garderen, Marc Bohner, Howard Seeherman, Eric Vanderploeg
-
Patent number: 10350071Abstract: A hemi-prosthesis implant comprises a replacement-joint part with an articulation surface for tribological pairing with a joint surface of a natural joint counterpart. The articulation surface is embodied with a coating applied on a substrate. The substrate provides a relief for the adhesion of the coating. The relief may comprise one or more of a plurality of grooves, a plurality of teeth, a ribbing, and a roughened surface. The relief may be embodied entirely or partially outside the articulation surface. The replacement joint part may optionally comprise a ventilation feature, and the articulation surface may be formed by injection molding on the substrate. The hemi-prosthesis implant may be part of an implant set that includes both a hemi-prosthesis implant and a total prosthesis implant, either of which can be chosen intraoperatively.Type: GrantFiled: November 18, 2014Date of Patent: July 16, 2019Assignee: Mathys AG BettlachInventors: Reto Lerf, Stefan Scheurer
-
Publication number: 20190151097Abstract: A hemi-prosthesis implant comprises a replacement-joint part with an articulation surface for tribological pairing with a joint surface of a natural joint counterpart. The articulation surface is embodied with a coating applied on a substrate. The substrate provides a relief for the adhesion of the coating. The relief may comprise one or more of a plurality of grooves, a plurality of teeth, a ribbing, and a roughened surface. The relief may be embodied entirely or partially outside the articulation surface. The replacement joint part may optionally comprise a ventilation feature, and the articulation surface may be formed by injection molding on the substrate. The hemi-prosthesis implant may be part of an implant set that includes both a hemi-prosthesis implant and a total prosthesis implant, either of which can be chosen intraoperatively.Type: ApplicationFiled: January 22, 2019Publication date: May 23, 2019Applicant: Mathys AG BettlachInventors: Reto Lerf, Stefan Scheurer
-
Patent number: 10131543Abstract: The method is for producing porous calcium deficient hydroxyapatite granules and comprises the following steps: (a) subjecting granules of calcium sulfate anhydrous (CSA), calcium sulfate dihydrate (CSD) or calcium sulfate hemihydrate (CSH), the granules comprising interconnected pores with a minimum mean diameter of 3 microns, to a first incubation in an alkaline aqueous solution having a pH-value of less than 10 and containing PO43? ions; (b) subjecting the granules to a second incubation in an alkaline aqueous solution having a pH-value of more than 10 and optionally PO43? ions; (c) filtering and drying the obtained porous granules of calcium deficient hydroxyapatite; and wherein (d) the sum of the amounts of PO43? ions present in the first and second incubation is at least as large as the amount of SO42? ions of the granules used for step (a).Type: GrantFiled: June 23, 2014Date of Patent: November 20, 2018Assignees: Bioventus, LLC., Mathys AG BettlachInventors: Alex DeGasparo, Noemie Van Garderen, Marc Bohner, Howard Seeherman, Eric Vanderploeg
-
Patent number: 9993333Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).Type: GrantFiled: November 15, 2012Date of Patent: June 12, 2018Assignee: Mathys AG BettlachInventors: Daniel Delfosse, Alessandro De Cesaris, Clemens Dransfeld, Christian Rytka
-
Patent number: 9611173Abstract: A calcium phosphate cement composition that includes the following two components: A) one or several calcium phosphate powders suspended in an aqueous solution including inhibitor cations inhibiting a reaction of the calcium phosphate powders with water, the inhibitor cations being selected from Mg2+, Sr2+ and Ba2+ at a concentration greater than 0.01 M; and B) an aqueous solution including Ca2+ cations at a concentration greater than 0.1 M. This calcium phosphate cement compositions can be safely stored for years yet still retain its full reactivity when mixed.Type: GrantFiled: April 22, 2013Date of Patent: April 4, 2017Assignee: Mathys AG BettlachInventors: Nicola Döbelin, Hanna Tiainen, Marc Bohner
-
Publication number: 20170000613Abstract: A hemi-prosthesis implant comprises a replacement-joint part with an articulation surface for tribological pairing with a joint surface of a natural joint counterpart. The articulation surface is embodied with a coating applied on a substrate. The substrate provides a relief for the adhesion of the coating. The relief may comprise one or more of a plurality of grooves, a plurality of teeth, a ribbing, and a roughened surface. The relief may be embodied entirely or partially outside the articulation surface. The replacement joint part may optionally comprise a ventilation feature, and the articulation surface may be formed by injection molding on the substrate. The hemi-prosthesis implant may be part of an implant set that includes both a hemi-prosthesis implant and a total prosthesis implant, either of which can be chosen intraoperatively.Type: ApplicationFiled: November 18, 2014Publication date: January 5, 2017Applicant: Mathys AG BettlachInventors: Reto LERF, Stefan SCHEURER
-
Patent number: 9289285Abstract: A device for implantation in a bone is disclosed, wherein this device is a component part of a system, for controlled loading of the reconstructure anterior crucual ligament (ACL) of a knee joint. The device may comprise an outer body, which is provided with a damping mechanism between a distal end and a proximal end. Arranged inside the damping mechanism there is at least one securing element for fixing at least one thread which, at the proximal end of the device, is guided out from the outer body through an aperture in the base.Type: GrantFiled: July 23, 2014Date of Patent: March 22, 2016Assignee: Mathys AG BettlachInventor: Stefan Eggli
-
Patent number: 9271826Abstract: The invention relates to a system for controlled loading of a reconstructed human or animal tissue during the healing phase, comprising an anchor element (10) for implanting in a first bone (50), at least one connecting element (20), and one retaining element (30) for the at least one connecting element (20) on a second bone (40). The anchor element (10) and/or the connecting element (20) and/or the retaining element (30) are made of self-dissolving bioresorbable material.Type: GrantFiled: March 4, 2010Date of Patent: March 1, 2016Assignee: Mathys AG BettlachInventors: Stefan Eggli, Daniel Delfosse, Alessandro De Cesaris, Sandro Kohl, Marianne Herwig
-
Patent number: 9205174Abstract: A bone graft substitute in the form of an implantable three-dimensional scaffold that includes calcium phosphate and has pores. The scaffold is impregnated with a calcium and/or phosphate containing substance, and the dissolution rate DRS of the scaffold is slower than the dissolution rate DRD of the calcium and/or phosphate containing substance.Type: GrantFiled: May 21, 2014Date of Patent: December 8, 2015Assignee: MATHYS AG BETTLACHInventors: Marc Bohner, Reto Luginbühl
-
Patent number: 9060866Abstract: A knee joint endoprosthesis (1) for forming an articulation between a femur and a tibia includes a femur component (2), which is connected to the femur, a tibia component (4), which is connected to the tibia, and an intermediate element (3) which is mounted between the tibia component (4) and the femur component (2). This intermediate element lies against the femur component (2) with a modular sliding surface (9) which includes a lateral sliding surface (9a) and a medial sliding surface (9b), and can be connected in a releasable manner to the tibia component (4). The lateral sliding surface (9a) and the medial sliding surface (9b) of the intermediate element (3) have different sagittal cross-sectional profiles.Type: GrantFiled: November 28, 2005Date of Patent: June 23, 2015Assignee: MATHYS AG BETTLACHInventors: Christoph Fankhauser, Walter Supper, Daniel Delfosse, Tobias Wyss
-
Publication number: 20140336760Abstract: A device for implantation in a bone is disclosed, wherein this device is a component part of a system, for controlled loading of the reconstructure anterior crucual ligament (ACL) of a knee joint. The device may comprise an outer body, which is provided with a damping mechanism between a distal end and a proximal end. Arranged inside the damping mechanism there is at least one securing element for fixing at least one thread which, at the proximal end of the device, is guided out from the outer body through an aperture in the base.Type: ApplicationFiled: July 23, 2014Publication date: November 13, 2014Applicant: MATHYS AG BETTLACHInventor: Stefan Eggli
-
Publication number: 20140257514Abstract: A bone graft substitute in the form of an implantable three-dimensional scaffold that includes calcium phosphate and has pores. The scaffold is impregnated with a calcium and/or phosphate containing substance, and the dissolution rate DRS of the scaffold is slower than the dissolution rate DRD of the calcium and/or phosphate containing substance.Type: ApplicationFiled: May 21, 2014Publication date: September 11, 2014Applicant: Mathys AG BettlachInventors: Marc Bohner, Reto Luginbühl
-
Patent number: 8808374Abstract: A device for implantation in a bone is disclosed, wherein this device is a component part of a system, for controlled loading of the reconstructure anterior crucual ligament (ACL) of a knee joint. The device may comprise an outer body, which is provided with a damping mechanism between a distal end and a proximal end. Arranged inside the damping mechanism there is at least one securing element for fixing at least one thread which, at the proximal end of the device, is guided out from the outer body through an aperture in the base.Type: GrantFiled: September 19, 2008Date of Patent: August 19, 2014Assignee: Mathys AG BettlachInventor: Stefan Eggli
-
Patent number: 8690952Abstract: A shoulder prosthesis comprising a socket and a condyle that cooperates with the socket. The condyle also cooperates with a base plate facing the scapula similar to a clamping connection. The condyle is plugged onto the base plate by means of a receptacle that is embodied on the condyle. The base plate can be anchored to the glenoid fossa of the scapula with the aid of two peg-type protrusions.Type: GrantFiled: April 25, 2007Date of Patent: April 8, 2014Assignee: Mathys AG BettlachInventor: Frank Dallmann
-
Publication number: 20120330436Abstract: A bone graft substitute in the form of an implantable three-dimensional scaffold that includes calcium phosphate and has pores. The scaffold is impregnated with a calcium and/or phosphate containing substance, and the dissolution rate DRS of the scaffold is slower than the dissolution rate DRD of the calcium and/or phosphate containing substance.Type: ApplicationFiled: March 9, 2010Publication date: December 27, 2012Applicant: MATHYS AG BETTLACHInventors: Marc Bohner, Reto Luginbuhl