Patents by Inventor Martin Edward Lee Pickford
Martin Edward Lee Pickford 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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Patent number: 9649410Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodising, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: GrantFiled: December 23, 2014Date of Patent: May 16, 2017Assignee: Accentus Medical LimitedInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Patent number: 9393349Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodizing, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: GrantFiled: August 11, 2009Date of Patent: July 19, 2016Assignee: Accentus Medical LimitedInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Publication number: 20150110844Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodising, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Applicant: Acentus Medical LimitedInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Patent number: 9011665Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer is grown by anodizing at a voltage between 50 and 150 V, and the biocidal material incorporated in it by ion exchange. This produces a significantly harder surface than anodizing at low voltage, and generates pits containing ion-absorbing material.Type: GrantFiled: March 3, 2005Date of Patent: April 21, 2015Assignee: Accentus Medical LimitedInventors: Martin Edward Lee Pickford, David Richard Lewis, Andrew Derek Turner
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Patent number: 8945363Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodizing, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: GrantFiled: August 11, 2009Date of Patent: February 3, 2015Assignee: Accentus Medical LimitedInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Patent number: 8858775Abstract: Metal objects are treated by anodising the metal object in contact with an acidic solution, and then subjecting the anodised metal object to a reversed voltage (compared to the anodising voltage). The thus-treated metal object is then contacted with a biocidal metal-containing solution. Biocidal metal is deposited on the surface of the metal object, resulting in improved biocidal properties.Type: GrantFiled: October 3, 2008Date of Patent: October 14, 2014Assignee: Accentus Medical LimitedInventors: Philip James Agg, James Timothy Shawcross, Martin Edward Lee Pickford, Andrew Derek Turner, David Richard Lewis
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Publication number: 20100206733Abstract: Metal objects are treated by anodising the metal object in contact with an acidic solution, and then subjecting the anodised metal object to a reversed voltage (compared to the anodising voltage). The thus-treated metal object is then contacted with a biocidal metal-containing solution. Biocidal metal is deposited on the surface of the metal object, resulting in improved biocidal properties.Type: ApplicationFiled: October 3, 2008Publication date: August 19, 2010Applicant: ACCENTUS PLCInventors: Philip James Agg, James Timothy Shawcross, Martin Edward Lee Pickford, Andrew Derek Turner, David Richard Lewis
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Publication number: 20100136083Abstract: An implant with a metal structure for use in a surgical procedure, in which at least part of the metal structure is coated with a biocompatible metal such as titanium by plasma spraying of the metal powder. Biocidal metal cations are then absorbed by ion exchange into the coating, so that after being implanted the biocidal ions gradually leach out into the surrounding body fluids and suppress infection. The ion exchange properties of the coating may be modified by pretreatment with dilute phosphoric acid.Type: ApplicationFiled: January 15, 2008Publication date: June 3, 2010Applicant: ACCENTUS PLCInventors: Thomas Campbell Prentice, Martin Edward Lee Pickford, David Richard Lewis, Andrew Derek Turner
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Patent number: 7695522Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodizing, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: GrantFiled: March 25, 2003Date of Patent: April 13, 2010Assignee: Accentus plcInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Publication number: 20100036501Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodising, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: ApplicationFiled: August 11, 2009Publication date: February 11, 2010Applicant: ACCENTUS PLCInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Publication number: 20100032309Abstract: A metal implant for use in a surgical procedure is provided with a surface layer that is integral with the metal substrate, and which incorporates a biocidal material. The surface layer may be grown from the metal substrate, by anodising, and the biocidal material incorporated in it by ion exchange. Alternatively the layer may be deposited by electroplating, followed by diffusion bonding so as to become integral with the metal substrate. In either case, silver is a suitable biocidal material; and both the release rate and the quantity of biocidal material should be low to avoid toxic effects on body cells. Electropolishing the surface before formation of the surface layer is also beneficial, and this may be achieved by electropolishing.Type: ApplicationFiled: August 11, 2009Publication date: February 11, 2010Applicant: ACCENTUS PLCInventors: Martin Edward Lee Pickford, Andrew Derek Turner
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Publication number: 20090198344Abstract: An implant with a metal structure for use in a surgical procedure, in which at a region of the implant to be in contact with bone the metal structure is provided with a roughened surface. The roughened region is then provided with a ceramic coating comprising hydroxyapatite by a thermal spraying process. Biocidal ions of silver are absorbed into the ceramic coating, and gradually leach out into body fluids after implantation. The hydroxyapatite enhances bone regrowth into the implant, while the silver ions suppress infection.Type: ApplicationFiled: June 11, 2007Publication date: August 6, 2009Applicant: Accentus PLCInventors: Thomas Campbell Prentice, Martin Edward Lee Pickford, David Richard Lewis, Andrew Derek Turner