Patents by Inventor Paul David Fielder

Paul David Fielder 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).

  • Patent number: 11826536
    Abstract: An implantable percutaneous fluid delivery device is described that includes a subcutaneous base portion having one or more ports for supplying fluid to one or more implanted catheter devices and a percutaneous portion including an extracorporeal surface. The one or more ports of the subcutaneous base portion are accessible from the extracorporeal surface of the percutaneous portion. The subcutaneous base portion is at least partially insertable into a complementary recess formed in a bone, the subcutaneous base portion including one or more features for gripping the internal surface of such a complementary recess thereby directly anchoring the subcutaneous base portion to the bone. The device may be used to route fluid to neurosurgical catheters optionally via a router unit.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: November 28, 2023
    Assignee: RENISHAW (IRELAND) LIMITED
    Inventors: Paul David Fielder, Steven S Gill, Trefor Owen Lewis, Andrew Samuel Vick
  • Patent number: 11717663
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus includes at least one intracranial catheter and a percutaneous access device. The percutaneous access device includes a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: August 8, 2023
    Assignee: RENISHAW (IRELAND) LIMITED
    Inventors: Steven Streatfield Gill, Paul David Fielder
  • Publication number: 20200376252
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus includes at least one intracranial catheter and a percutaneous access device. The percutaneous access device includes a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Applicant: RENISHAW (IRELAND) LIMITED
    Inventors: Steven Streatfield GILL, Paul David FIELDER
  • Patent number: 10751520
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus includes at least one intracranial catheter and a percutaneous access device. The percutaneous access device includes a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 25, 2020
    Assignee: RENISHAW (IRELAND) LIMITED
    Inventors: Steven Streatfield Gill, Paul David Fielder
  • Publication number: 20200215318
    Abstract: An implantable percutaneous fluid delivery device is described that includes a subcutaneous base portion having one or more ports for supplying fluid to one or more implanted catheter devices and a percutaneous portion including an extracorporeal surface. The one or more ports of the subcutaneous base portion are accessible from the extracorporeal surface of the percutaneous portion. The subcutaneous base portion is at least partially insertable into a complementary recess formed in a bone, the subcutaneous base portion including one or more features for gripping the internal surface of such a complementary recess thereby directly anchoring the subcutaneous base portion to the bone. The device may be used to route fluid to neurosurgical catheters optionally via a router unit.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 9, 2020
    Applicant: RENISHAW (IRELAND) LIMITED
    Inventors: Paul David FIELDER, Steven S. GILL, Trefor Owen LEWIS, Andrew Samuel VICK
  • Patent number: 10596362
    Abstract: An implantable percutaneous fluid delivery device is described that includes a subcutaneous base portion having one or more ports for supplying fluid to one or more implanted catheter devices and a percutaneous portion including an extracorporeal surface. The one or more ports of the subcutaneous base portion are accessible from the extracorporeal surface of the percutaneous portion. The subcutaneous base portion is at least partially insertable into a complementary recess formed in a bone, the subcutaneous base portion including one or more features for gripping the internal surface of such a complementary recess thereby directly anchoring the subcutaneous base portion to the bone. The device may be used to route fluid to neurosurgical catheters optionally via a router unit.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 24, 2020
    Assignee: RENISHAW (IRELAND) LIMITED
    Inventors: Paul David Fielder, Steven S Gill, Trefor Owen Lewis, Andrew Samuel Vick
  • Publication number: 20160296293
    Abstract: Surgical apparatus is described that includes a surgical robot having a moveable arm for carrying a surgical tool. The apparatus also has x-ray imaging apparatus that includes at least one of an x-ray source and an x-ray detector. The moveable arm of the surgical robot is configured to carry at least one of the x-ray source and the x-ray detector. In this manner, the surgical robot can be used to perform x-ray imaging to allow patient registration. Methods of using the apparatus are also described.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 13, 2016
    Applicant: RENISHAW PLC
    Inventors: Steven Streatfield GILL, Geoffrey MCFARLAND, Robert Neil HARRISON, Paul David FIELDER
  • Publication number: 20150157842
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus includes at least one intracranial catheter and a percutaneous access device. The percutaneous access device includes a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 11, 2015
    Applicant: Renishaw (Ireland) Limited
    Inventors: Steven Streatfield GILL, Paul David FIELDER
  • Patent number: 8974422
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus comprises at least one intracranial catheter and a percutaneous access device. The percutaneous access device comprises a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: March 10, 2015
    Assignee: Renishaw (Ireland) Limited
    Inventors: Steven Streatfield Gill, Paul David Fielder
  • Publication number: 20140343500
    Abstract: An implantable percutaneous fluid delivery device is described that includes a subcutaneous base portion having one or more ports for supplying fluid to one or more implanted catheter devices and a percutaneous portion including an extracorporeal surface. The one or more ports of the subcutaneous base portion are accessible from the extracorporeal surface of the percutaneous portion. The subcutaneous base portion is at least partially insertable into a complementary recess formed in a bone, the subcutaneous base portion including one or more features for gripping the internal surface of such a complementary recess thereby directly anchoring the subcutaneous base portion to the bone. The device may be used to route fluid to neurosurgical catheters optionally via a router unit.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 20, 2014
    Inventors: Paul David FIELDER, Steven S. GILL, Trefor Owen LEWIS, Andrew Samuel VICK
  • Publication number: 20110009879
    Abstract: A skull mount (50;150;170;200;300) is described that is attachable to a hole (60) formed in the skull. The skull mount (50;150;170;200;300) comprises an alignment guide (62;152;172;216;306) defining an alignment axis (22;210;312) along which neurosurgical instruments can be passed. The skull mount, when attached to a hole in a skull, is arranged such that it does not substantially protrude from the outermost surface of the skull and does not extend into the brain parenchyma. Also described is a neurosurgical alignment instrument (30,206) for aligning such a skull mount (50;150;170;200;300) that comprises an elongate shaft (32) and an element (34,36) protruding from the distal end of the elongate shaft (32) for engaging and aligning the alignment guide (62;152;172;216;306) of an associated skull mount (50;150;170;200;300).
    Type: Application
    Filed: October 6, 2008
    Publication date: January 13, 2011
    Applicant: RENISHAW (IRELAND) LIMITED
    Inventors: Hugo George Derrick, Paul David Fielder, Steven Streatfield Gill
  • Publication number: 20100318064
    Abstract: A neurosurgical catheter is described for insertion into the brain parenchyma of a subject. The catheter comprises a flexible tube and has a stiff, non-porous, tip comprising at least one fluid delivery aperture. The stiff tip of the catheter may be mechanically stiffer than the flexible tube. The stiff tip may be provided by a stiff tube attached to the distal end of the flexible tube. The stiff tube may comprise a ceramic (e.g fused silica) and/or a metal. A kit comprising the catheter and a guide tube is also described. Methods of catheter implantation are also outlined.
    Type: Application
    Filed: February 11, 2009
    Publication date: December 16, 2010
    Applicant: RENISHAW (IRELAND) LIMITED
    Inventors: Hugo George Derrick, Mathew David Frederick Stratton, Paul David Fielder
  • Publication number: 20100042070
    Abstract: Apparatus for delivering therapeutic agents to the central nervous system of a subject is described. The apparatus comprises at least one intracranial catheter and a percutaneous access device. The percutaneous access device comprises a body having at least one extracorporeal surface and at least one subcutaneous surface, the body defining at least one port for connection to an implanted intracranial catheter. The port is accessible from the extracorporeal surface of the device, but is provided with a seal such as a rubber bung between the lumen of the port and the extracorporeal surface. The percutaneous access device may have more than two ports and/or a flange. A method of implanting the percutaneous access device is also described.
    Type: Application
    Filed: November 21, 2007
    Publication date: February 18, 2010
    Applicant: RENISHAW PLC
    Inventors: Steven Streatfield Gill, Paul David Fielder