Patents by Inventor Curtis Charles Lindstrom
Curtis Charles Lindstrom 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: 8092467Abstract: An apparatus and method facilitating removal, from a body, of an implanted elongated structure with a lumen such as a lead or catheter, comprises a plurality of wire stylets that are inserted together into the lumen and subsequently moved relative to each other in a longitudinal direction by manipulation at the proximal end. The stylets have dimensional features on their adjacent sides that mate together to minimize the overall diameter of the stylet assembly during insertion into the lumen. Interaction of the features on the stylets' adjacent sides, resulting from the subsequent relative displacement, causes the assembly to expand radially. The expansion is sufficient to engage the luminal surface of the implanted structure, thereby allowing traction forces to be applied, while minimizing deformation of the implanted structure. If repositioning of the apparatus is necessary, the stylets may be returned to initial relative positions, reestablishing a minimal overall diameter.Type: GrantFiled: October 20, 2006Date of Patent: January 10, 2012Inventor: Curtis Charles Lindstrom
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Patent number: 7702399Abstract: An implantable subcutaneous device includes a lead and electrode for cardiac monitoring and intervention. The device has an implantable lead including a lead body, a subcutaneous electrode supported by the lead body and a pharmacological agent impelled from the device using phoresis. The pharmacological agent provides a therapeutic treatment to subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads involves providing a lead including a lead body, a subcutaneous electrode, and a pharmacological agent and using phoresis to impel the pharmacological agent into subcutaneous non-intrathoracic tissue surrounding the lead.Type: GrantFiled: December 4, 2003Date of Patent: April 20, 2010Assignee: Cardiac Pacemakers, Inc.Inventors: Ron Heil, Paul A. Haefner, Adam W. Cates, Darrell Orvin Wagner, Curtis Charles Lindstrom
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Patent number: 7529592Abstract: An implantable subcutaneous device and method employ a lead and an electrode for cardiac monitoring and intervention. The device includes an implantable lead having a lead body, a subcutaneous electrode coupled to the lead body, and a pharmacological agent provided on the implantable lead and/or electrode. The pharmacological agent provides a temporary therapeutic treatment to subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads involves providing a lead including a lead body, a subcutaneous electrode, and a pharmacological agent, and delivering the pharmacological agent to subcutaneous non-intrathoracic tissue surrounding the lead.Type: GrantFiled: November 7, 2003Date of Patent: May 5, 2009Assignee: Cardiac Pacemakers, Inc.Inventors: Adam W. Cates, Darrell Orvin Wagner, Curtis Charles Lindstrom, Ron Heil
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Patent number: 7499758Abstract: Subcutaneous leads that incorporate active fixation elements including, for example, helical coils, provide for fixation of cardiac lead components within a patient. An implantable lead includes a lead body with a supported electrode configured for subcutaneous non-intrathoracic placement within a patient. A fixation element is provided on the implantable lead and configured to actively secure one or both of the subcutaneous electrode and the lead body in tissue. A delivery apparatus comprising a sheath may be employed that is configured to introduce the lead to a desired subcutaneous non-intrathoracic location. Lead delivery typically involves introducing a sheath into a subcutaneous non-intrathoracic body location of a patient, providing a lead supporting an electrode, advancing the lead through the sheath, actively fixing the lead to tissue, and thereafter removing the sheath from the patient.Type: GrantFiled: December 18, 2003Date of Patent: March 3, 2009Assignee: Cardiac Pacemakers, Inc.Inventors: Adam W. Cates, Ron Heil, Pete Kelley, Curtis Charles Lindstrom, Jason Alan Shiroff
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Patent number: 7493175Abstract: Implantable subcutaneous devices and methods employ a lead and/or electrode for cardiac monitoring and/or intervention. The devices and methods may employ one or more fixation elements including, for example, tines, tines with barbs, spring-loaded tines, flexible or collapsible tines, and other tined fixation mechanisms configured to passively secure one or both of the electrode or body of the lead in subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads according to the present invention involves providing a lead comprising a lead body, an electrode, and one or more fixation elements, and passively securing one or both of the lead body and the electrode to subcutaneous non-intrathoracic tissue at one or more fixation sites using the fixation elements. The method may involve use of a delivery device, such as a sheath, for lead delivery to a subcutaneous non-intrathoracic implant site.Type: GrantFiled: December 18, 2003Date of Patent: February 17, 2009Assignee: Cardiac Pacemakers, Inc.Inventors: Adam W. Cates, Ron Heil, Curtis Charles Lindstrom, Jason Alan Shiroff
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Patent number: 7389138Abstract: Methods and devices of cardiac electrode placement involve locating electrodes on a thorax of a patient. Surface pacing levels are determined relative to a pacing limit. Surface electrode locations are selected or rejected based on the level being within a limit. Electrodes may be relocated to new locations, and new surface pacing levels determined, until a new surface pacing level falls within the pacing limit. Selecting or rejecting electrode locations involves selecting locations suitable for implantation of subcutaneous cardiac electrodes and implanting at the selected locations.Type: GrantFiled: March 19, 2004Date of Patent: June 17, 2008Assignee: Cardiac Pacemakers, Inc.Inventors: Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Patent number: 7349742Abstract: Subcutaneous systems and leads may be fixed in tissue after placement by use of one or more expanding fixation elements. An expanding fixation element is provided on an implantable lead and configured to secure one or both of a subcutaneous electrode and the lead body within subcutaneous non-intrathoracic tissue. A delivery apparatus comprising a sheath may be included that is configured to introduce the lead to a desired subcutaneous non-intrathoracic location within the patient. A method of lead delivery typically involves introducing a sheath into a subcutaneous non-intrathoracic body location of a patient, providing a lead comprising a lead body and an electrode, and advancing the lead through the sheath and to the subcutaneous non-intrathoracic body location. The method further involves fixing the lead to subcutaneous non-intrathoracic tissue using an expanding fixation element and thereafter removing the sheath from the patient.Type: GrantFiled: December 23, 2003Date of Patent: March 25, 2008Assignee: Cardiac Pacemakers, Inc.Inventors: Ron Heil, Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Patent number: 7047071Abstract: Systems and methods of verifying that implantable cardiac devices operate as intended in a particular patient involve one or more of determining proper placement of system components, determining stimulus levels useful for individual patient stratification, and determining stimulus levels that indicate efficacy of devices, implantable within a given patient. A pacing stimulus set at a surface pacing level is delivered to a patient's heart using surface electrodes. The patient is determined to not be a candidate for implantation of a subcutaneous defibrillation system if the surface pacing level needed to capture the heart exceeds a predetermined level. The patient may be determined to be a candidate for implantation of a subcutaneous system if the surface pacing level needed to effect capture is within an acceptance level. Such determinations are preferably based on a proportionality relationship between a subcutaneous defibrillation level and a surface pacing level.Type: GrantFiled: March 12, 2004Date of Patent: May 16, 2006Assignee: Cardiac Pacemakers, Inc.Inventors: Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Publication number: 20040230282Abstract: Implantable subcutaneous devices and methods incorporating a lead and/or electrode for cardiac monitoring and intervention, the lead employing chronic fixation elements including, for example, ridges, grooves, surface roughness, porosity, combined with acute fixation elements such as, for example, a suture site. A method of implanting subcutaneous leads may involve providing a lead comprising a lead body, an electrode, an acute fixation element, and one or more chronic fixation elements, and securing one or both of the lead body and the electrode to subcutaneous non-intrathoracic tissue at one or more fixation sites using the fixation elements. The method may involve: introducing a sheath into a subcutaneous non-intrathoracic body location of a patient; providing a lead comprising a lead body and an electrode; advancing the lead through the sheath and to the subcutaneous non-intrathoracic body location; fixing the lead to subcutaneous non-intrathoracic tissue; and removing the sheath from the patient.Type: ApplicationFiled: December 23, 2003Publication date: November 18, 2004Inventors: Adam W. Cates, Ron Heil, Curtis Charles Lindstrom, Jason Alan Shiroff, Darrell Orvin Wagner, Pete Kelley
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Publication number: 20040230230Abstract: An approach for implementing a subcutaneous medical electrode system involves positioning a number of electrode subsystems in relation to a heart so that a majority of ventricular tissue is included within a volume defined between the electrode subsystems. One of the electrode subsystems so positioned may include a can electrode located on a housing enclosing a medical device. The medical device may be configured to provide therapeutic, diagnostic, or monitoring functions, including, for example, cardiac arrhythmia therapy.Type: ApplicationFiled: June 19, 2003Publication date: November 18, 2004Inventors: Curtis Charles Lindstrom, Adam W. Cates, Darrell Orvin Wagner
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Publication number: 20040230280Abstract: Subcutaneous leads that incorporate active fixation elements including, for example, helical coils, provide for fixation of cardiac lead components within a patient. An implantable lead includes a lead body with a supported electrode configured for subcutaneous non-intrathoracic placement within a patient. A fixation element is provided on the implantable lead and configured to actively secure one or both of the subcutaneous electrode and the lead body in tissue. A delivery apparatus comprising a sheath may be employed that is configured to introduce the lead to a desired subcutaneous non-intrathoracic location. Lead delivery typically involves introducing a sheath into a subcutaneous non-intrathoracic body location of a patient, providing a lead supporting an electrode, advancing the lead through the sheath, actively fixing the lead to tissue, and thereafter removing the sheath from the patient.Type: ApplicationFiled: December 18, 2003Publication date: November 18, 2004Inventors: Adam W. Cates, Ron Heil, Pete Kelley, Curtis Charles Lindstrom, Jason Alan Shiroff
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Publication number: 20040230272Abstract: An implantable subcutaneous device and method employ a lead and/or electrode for cardiac monitoring and intervention. The device includes an implantable lead having a lead body, a subcutaneous electrode supported by the lead body, and a pharmacological agent provided on the implantable lead body and/or an inactive can portion. The pharmacological agent provides a temporary therapeutic treatment to subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads involves providing a lead including a lead body, a subcutaneous electrode, and a pharmacological agent, and delivering the pharmacological agent to subcutaneous non-intrathoracic tissue surrounding the lead.Type: ApplicationFiled: November 7, 2003Publication date: November 18, 2004Inventors: Adam W. Cates, Darrell Orvin Wagner, Curtis Charles Lindstrom, Ron Heil
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Publication number: 20040230279Abstract: Implantable subcutaneous devices and methods employ a lead and/or electrode for cardiac monitoring and/or intervention. The devices and methods may employ one or more fixation elements including, for example, tines, tines with barbs, spring-loaded tines, flexible or collapsible tines, and other tined fixation mechanisms configured to passively secure one or both of the electrode or body of the lead in subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads according to the present invention involves providing a lead comprising a lead body, an electrode, and one or more fixation elements, and passively securing one or both of the lead body and the electrode to subcutaneous non-intrathoracic tissue at one or more fixation sites using the fixation elements. The method may involve use of a delivery device, such as a sheath, for lead delivery to a subcutaneous non-intrathoracic implant site.Type: ApplicationFiled: December 18, 2003Publication date: November 18, 2004Inventors: Adam W. Cates, Ron Heil, Curtis Charles Lindstrom, Jason Alan Shiroff
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Publication number: 20040230281Abstract: Subcutaneous systems and leads may be fixed in tissue after placement by use of one or more expanding fixation elements. An expanding fixation element is provided on an implantable lead and configured to secure one or both of a subcutaneous electrode and the lead body within subcutaneous non-intrathoracic tissue. A delivery apparatus comprising a sheath may be included that is configured to introduce the lead to a desired subcutaneous non-intrathoracic location within the patient. A method of lead delivery typically involves introducing a sheath into a subcutaneous non-intrathoracic body location of a patient, providing a lead comprising a lead body and an electrode, and advancing the lead through the sheath and to the subcutaneous non-intrathoracic body location. The method further involves fixing the lead to subcutaneous non-intrathoracic tissue using an expanding fixation element and thereafter removing the sheath from the patient.Type: ApplicationFiled: December 23, 2003Publication date: November 18, 2004Inventors: Ron Heil, Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Publication number: 20040230273Abstract: An implantable subcutaneous device and method employ a lead and an electrode for cardiac monitoring and intervention. The device includes an implantable lead having a lead body, a subcutaneous electrode coupled to the lead body, and a pharmacological agent provided on the implantable lead and/or electrode. The pharmacological agent provides a temporary therapeutic treatment to subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads involves providing a lead including a lead body, a subcutaneous electrode, and a pharmacological agent, and delivering the pharmacological agent to subcutaneous non-intrathoracic tissue surrounding the lead.Type: ApplicationFiled: November 7, 2003Publication date: November 18, 2004Inventors: Adam W. Cates, Darrell Orvin Wagner, Curtis Charles Lindstrom, Ron Heil
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Publication number: 20040230274Abstract: An implantable subcutaneous device includes a lead and electrode for cardiac monitoring and intervention. The device has an implantable lead including a lead body, a subcutaneous electrode supported by the lead body and a pharmacological agent impelled from the device using phoresis. The pharmacological agent provides a therapeutic treatment to subcutaneous non-intrathoracic tissue. A method of implanting subcutaneous leads involves providing a lead including a lead body, a subcutaneous electrode, and a pharmacological agent and using phoresis to impel the pharmacological agent into subcutaneous non-intrathoracic tissue surrounding the lead.Type: ApplicationFiled: December 4, 2003Publication date: November 18, 2004Inventors: Ron Heil, Paul A. Haefner, Adam W. Cates, Darrell Orvin Wagner, Curtis Charles Lindstrom
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Publication number: 20040225329Abstract: Methods and devices of cardiac electrode placement involve locating electrodes on a thorax of a patient. Surface pacing levels are determined relative to a pacing limit. Surface electrode locations are selected or rejected based on the level being within a limit. Electrodes may be relocated to new locations, and new surface pacing levels determined, until a new surface pacing level falls within the pacing limit. Selecting or rejecting electrode locations involves selecting locations suitable for implantation of subcutaneous cardiac electrodes and implanting at the selected locations.Type: ApplicationFiled: March 19, 2004Publication date: November 11, 2004Inventors: Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Publication number: 20040220641Abstract: Systems and methods of verifying that implantable cardiac devices operate as intended in a particular patient involve one or more of determining proper placement of system components, determining stimulus levels useful for individual patient stratification, and determining stimulus levels that indicate efficacy of devices, implantable within a given patient. A pacing stimulus set at a surface pacing level is delivered to a patient's heart using surface electrodes. The patient is determined to not be a candidate for implantation of a subcutaneous defibrillation system if the surface pacing level needed to capture the heart exceeds a predetermined level. The patient may be determined to be a candidate for implantation of a subcutaneous system if the surface pacing level needed to effect capture is within an acceptance level. Such determinations are preferably based on a proportionality relationship between a subcutaneous defibrillation level and a surface pacing level.Type: ApplicationFiled: March 12, 2004Publication date: November 4, 2004Inventors: Darrell Orvin Wagner, Adam W. Cates, Curtis Charles Lindstrom
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Publication number: 20040204735Abstract: Tissue dissection instruments and methods provide for fluid delivery and aspiration during subcutaneous dissection. A dissection tool includes a handle and a dissecting member. The dissecting member extends from the distal end of the handle, and a fluid channel system extends from at least the proximal end to the distal end of the dissecting member. The fluid channel system terminates in a port system. The port system may include one or more apertures, one or more channels, and be adapted to provide fluid transport and/or aspiration, such fluids including irrigation fluids, fluids having analgesics, antibiotics, hemostatic agents, healing accelerating agents, agents that improve the electrical properties of tissue, and combinations of fluids and agents. The dissection tool may be straight or curved, rigid or malleable, and shaped to provide dissection paths suitable for the implantation of subcutaneous electrodes.Type: ApplicationFiled: July 23, 2003Publication date: October 14, 2004Inventors: Jason Alan Shiroff, Curtis Charles Lindstrom, Adam W. Cates