Patents by Inventor Silvio Schaffner
Silvio Schaffner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230157825Abstract: A sutureless implant for replacing damaged natural chordae tedineae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: ApplicationFiled: January 24, 2023Publication date: May 25, 2023Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Patent number: 11571304Abstract: A sutureless implant for replacing damaged natural chordae tendineae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: GrantFiled: September 28, 2020Date of Patent: February 7, 2023Assignee: COREMEDIC AGInventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Patent number: 11564795Abstract: A sutureless implant for replacing damaged natural chordae tendineae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: GrantFiled: September 28, 2020Date of Patent: January 31, 2023Assignee: COREMEDIC AGInventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20220183841Abstract: An instrument for repairing an atrioventricular heart valve, mitral heart valve or tricuspid heart valve includes a first tube having a tube axis defining an axial direction. A leaflet grabbing structure is arranged at a distal part of the first tube and contiguous to the first tube. The leaflet grabbing structure has a main body and a jaw, the jaw being movable relative to the main body. The jaw has a first proximally facing abutment surface and the main body has a second, distally facing abutment surface. The instrument has a needle that is cannulated and forms an inner tube. The needle is releasable from the first tube and movable relative to the main body in axial directions. The leaflet grabbing structure clamps a leaflet of the heart valve between the first and second abutment surfaces, while the jaw allows the needle to extend therethrough.Type: ApplicationFiled: March 17, 2020Publication date: June 16, 2022Inventors: Thomas Bauer, Tommaso Sironi, Michael Roth, Silvio Schaffner, Andrea Guidotti, David Zarbatany, Jesus Flores, Georgios Stefopoulos, Luca Vicentini, Mattia Arduini
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Patent number: 10966830Abstract: An instrument for repairing an atrioventricular heart valve, the instrument including a tubular element having an outer, distal end; a distal implant part arranged in the tubular element; an artificial chord arranged in the tubular element; a proximal implant part arranged in the tubular element; and, an anchor carrier arranged in the tubular element. The distal implant part and the proximal implant part are arranged in the tubular element beside one another, with the distal implant part being closer to the distal end of the tubular element than the proximal implant part The proximal implant part is assembled with the anchor carrier inside the tubular element so that the tubular element prevents the proximal implant part from escaping from the anchor carrier as long as the anchor carrier is within the tubular element.Type: GrantFiled: October 19, 2016Date of Patent: April 6, 2021Assignee: COREMEDIC AGInventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20210022866Abstract: A sutureless implant for replacing damaged natural chordae tedineae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: ApplicationFiled: September 28, 2020Publication date: January 28, 2021Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20210007848Abstract: A sutureless implant for replacing damaged natural chordae tendineae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: ApplicationFiled: September 28, 2020Publication date: January 14, 2021Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Patent number: 10874770Abstract: The present invention relates to a drug-eluting medical device, in particular a balloon for angioplasty catheters with drug elution to prevent the restenosis of the vessel subjected to angioplasty. More particularly, the present invention relates to a catheter balloon completely or partially coated with paclitaxel in hydrated crystalline form or in hydrated solvated crystalline form, having an immediate release and bioavailability of a therapeutically effective amount of paclitaxel at the site of intervention. The balloon can be made of a polyether-polyamide block copolymer, or a polyester amide, or polyamide-12.Type: GrantFiled: March 19, 2020Date of Patent: December 29, 2020Assignee: INVATEC TECHNOLOGY CENTER GMBHInventors: Ulrich Speck, Silvio Schaffner, Magdalena Renke-Gluszko
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Patent number: 10806578Abstract: A sutureless implant for replacing damaged natural chordae tedingeae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: GrantFiled: October 19, 2016Date of Patent: October 20, 2020Assignee: COREMEDIC AGInventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Patent number: 10799357Abstract: A surgical instrument implementing a leaflet grabbing mechanism by a leaflet grabbing structure, in which the leaflet can be grabbed and clamped between first and second abutment surfaces. The first, proximally facing abutment surface belongs to a swivel-out portion of the leaflet grabbing structure, which includes at least a first arm and a second arm. In a released state, when the leaflet grabbing structure is released from a catheter, the arms are capable of swiveling: the first arm may swivel with respect to a main body to which it is attached, and the second arm may swivel relative to the first arm so that in a leaflet grabbing position the first abutment surface faces proximally. The second arm includes a recess arranged so that a chord extending between a released distal implant part and a proximal implant part can extend therethrough and be released by a lateral relative movement.Type: GrantFiled: October 19, 2016Date of Patent: October 13, 2020Assignee: COREMEDIC AGInventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20200215234Abstract: The present invention relates to a drug-eluting medical device, in particular a balloon for angioplasty catheters with drug elution to prevent the restenosis of the vessel subjected to angioplasty. More particularly, the present invention relates to a catheter balloon completely or partially coated with paclitaxel in hydrated crystalline form or in hydrated solvated crystalline form, having an immediate release and bioavailability of a therapeutically effective amount of paclitaxel at the site of intervention. The balloon can be made of a polyether-polyamide block copolymer, or a polyester amide, or polyamide-12.Type: ApplicationFiled: March 19, 2020Publication date: July 9, 2020Inventors: Ulrich Speck, Silvio Schaffner, Magdalena Renke-Gluszko
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Patent number: 10596303Abstract: The present invention relates to a drug-eluting medical device, in particular a balloon for angioplasty catheters with drug elution to prevent the restenosis of the vessel subjected to angioplasty. More particularly, the present invention relates to a catheter balloon completely or partially coated with paclitaxel in hydrated crystalline form or in hydrated solvated crystalline form, having an immediate release and bioavailability of a therapeutically effective amount of paclitaxel at the site of intervention. The balloon can be made of a polyether-polyamide block copolymer, or a polyester amide, or polyamide-12.Type: GrantFiled: July 23, 2018Date of Patent: March 24, 2020Assignee: Invatec Technology Center GMBHInventors: Ulrich Speck, Silvio Schaffner, Magdalena Renke-Gluszko
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Patent number: 10405979Abstract: A surgical instrument for treating atrioventricular valve prolapse of the drained human heart, includes a handle for being held by a surgeon, a shaft extending distally from the handle, the shaft having a lumen open to a shaft distal end, a cannulated needle arranged in the shaft; with a distal end of the needle protruding from the shaft distal end at least in one possible needle position. The needle accommodates a first, distal implant equipped for being anchored in a papillary muscle, and a second, proximal implant shaped to hold on to a leaflet of an atrioventricular valve, the first and second implants each including a chord connector portion for connecting the respective implant to an artificial chord. The apparatus further includes a trigger arrangement for releasing the first, distal implant upon a first release actuation and for releasing the second, proximal implant upon a second release actuation.Type: GrantFiled: July 9, 2015Date of Patent: September 10, 2019Assignees: COREMEDIC AG, UNIVERSITAT BERNInventors: Silvio Schaffner, Louis Weidmann, Rolf Vogel, Stefan Guggisberg, Andreas Mächler, Stijn Vandenberghe, Oliver Wüthrich, Thierry Carrel, Alberto Weber
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Publication number: 20190175346Abstract: An instrument for repairing an atrioventricular heart valve, the instrument including a tubular element having an outer, distal end; a distal implant part arranged in the tubular element; an artificial chord arranged in the tubular element; a proximal implant part arranged in the tubular element; and, an anchor carrier arranged in the tubular element. The distal implant part and the proximal implant part are arranged in the tubular element beside one another, with the distal implant part being closer to the distal end of the tubular element than the proximal implant part The proximal implant part is assembled with the anchor carrier inside the tubular element so that the tubular element prevents the proximal implant part from escaping from the anchor carrier as long as the anchor carrier is within the tubular element.Type: ApplicationFiled: October 19, 2016Publication date: June 13, 2019Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20190175345Abstract: A sutureless implant for replacing damaged natural chordae tedingeae of a human or possibly animal heart, the implant including a distal implant part, a proximal implant part, and an artificial chord. The distal implant part is configured to fit in a lumen of an implant delivery device and includes a self-spreading portion spreading radially outside when the distal implant part is released from the lumen, the self-spreading portion being capable of anchoring the distal implant part in human muscle tissue. The proximal implant part is configured to fit in the lumen of the implant delivery device and comprises a self-spreading portion spreading radially outside when the proximal implant part is released from the lumen, the self-spreading portion being capable of bearing on a tissue portion of leaflet tissue. The distal implant part and the proximal implant part are connected by the chord.Type: ApplicationFiled: October 19, 2016Publication date: June 13, 2019Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Publication number: 20190015562Abstract: The present invention relates to a drug-eluting medical device, in particular a balloon for angioplasty catheters with drug elution to prevent the restenosis of the vessel subjected to angioplasty. More particularly, the present invention relates to a catheter balloon completely or partially coated with paclitaxel in hydrated crystalline form or in hydrated solvated crystalline form, having an immediate release and bioavailability of a therapeutically effective amount of paclitaxel at the site of intervention. The balloon can be made of a polyether-polyamide block copolymer, or a polyester amide, or polyamide-12.Type: ApplicationFiled: July 23, 2018Publication date: January 17, 2019Inventors: Ulrich Speck, Silvio Schaffner, Magdalena Renke-Gluszko
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Publication number: 20180311482Abstract: A drug coated balloon (DCB) catheter (4) comprising a connector (8), a shaft (20) extending from a proximal end (24) to a distal end (28) along an axial direction (X-X) and having a guidewire lumen (32) and an inflation lumen (36), the shaft (20) being connected to the connector (8) on said proximal end (24) and provided with an inflatable balloon (48), fluidically connected with said inflation lumen (36) in order to be selectively inflated and/or deflated. Advantageously the balloon (48) is conical and axis-symmetrical around a prevalent extension axis (S-S), wherein the balloon (48) has an increasing diameter (60), moving from a first end (52) to a second end (56), said diameter (60) being measured on a section plane perpendicular to said prevalent extension axis (S-S), wherein an external surface (64) of the balloon (48) is coated with a drug for treating restenosis.Type: ApplicationFiled: October 30, 2015Publication date: November 1, 2018Inventor: Silvio SCHAFFNER
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Publication number: 20180303614Abstract: A surgical instrument implementing a leaflet grabbing mechanism by a leaflet grabbing structure, in which the leaflet can be grabbed and clamped between first and second abutment surfaces. The first, proximally facing abutment surface belongs to a swivel-out portion of the leaflet grabbing structure, which includes at least a first arm and a second arm. In a released state, when the leaflet grabbing structure is released from a catheter, the arms are capable of swiveling: the first arm may swivel with respect to a main body to which it is attached, and the second arm may swivel relative to the first arm so that in a leaflet grabbing position the first abutment surface faces proximally. The second arm includes a recess arranged so that a chord extending between a released distal implant part and a proximal implant part can extend therethrough and be released by a lateral relative movement.Type: ApplicationFiled: October 19, 2016Publication date: October 25, 2018Inventors: Silvio Schaffner, Tobias Aeschlimann, Oliver Wüthrich, Thomas Bauer
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Patent number: 10058678Abstract: Catheters and methods of making catheters are provided which include a connector with a guide wire channel and an inflation channel, a shaft extending from a proximal end to a distal end and having a guide wire lumen and an inflation lumen, the shaft being connected, at its proximal end, to the connector so that said guidewire lumen and inflation lumen are mechanically and fluidly connected with said guide wire channel and inflation channel respectively. The connection is realized in correspondence to a kink portion. Such catheters may include a protective sheath placed around an external wall of the shaft extending from a first sheath end, axially placed at a first distance from the proximal end of the shaft so as to allow direct contact and fixation between the external wall of the shaft and the internal wall of the kink portion, to a second sheath end.Type: GrantFiled: September 13, 2013Date of Patent: August 28, 2018Assignees: ACOTEC SCIENTIFIC CO. LTD, SCHAFFNER SILVIOInventor: Silvio Schaffner
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Patent number: 10029032Abstract: The present invention relates to a drug-eluting medical device, in particular a balloon for angioplasty catheters with drug elution to prevent the restenosis of the vessel subjected to angioplasty. More particularly, the present invention relates to a catheter balloon completely or partially coated with paclitaxel in hydrated crystalline form or in hydrated solvated crystalline form, having an immediate release and bioavailability of a therapeutically effective amount of paclitaxel at the site of intervention. The balloon can be made of a polyether-polyamide block copolymer, or a polyester amide, or polyamide-12.Type: GrantFiled: February 23, 2017Date of Patent: July 24, 2018Assignee: Invatec Technology Center GMBHInventors: Ulrich Speck, Silvio Schaffner, Magdalena Renke-Gluszko