Patents by Inventor Robert L. Carver
Robert L. Carver 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: 20210038885Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. A surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade. The inner sheath and outer sheath are constructed of laser-cut hypotubes, thereby allowing the surgical device, particularly the sheath assembly, to have a smaller profile for navigating smaller sized vasculature.Type: ApplicationFiled: August 24, 2020Publication date: February 11, 2021Inventors: Kenneth P. Grace, Weston H. LEE, Brian E. KAGARISE, Robert L. CARVER
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Patent number: 10751529Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade.Type: GrantFiled: August 26, 2016Date of Patent: August 25, 2020Assignee: SPECTRANETICS LLCInventors: Kenneth P. Grace, Weston H. Lee, Brian E. Kagarise, Robert L. Carver
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Patent number: 10716625Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiment, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: GrantFiled: December 28, 2017Date of Patent: July 21, 2020Assignee: THE SPECTRANETICS CORPORATIONInventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Publication number: 20190030324Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade.Type: ApplicationFiled: August 26, 2016Publication date: January 31, 2019Applicant: THE SPECTRANETICS CORPORATIONInventors: Kenneth P. GRACE, Weston H. LEE, Brian E. KAGARISE, Robert L. CARVER
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Patent number: 9980743Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade.Type: GrantFiled: August 26, 2016Date of Patent: May 29, 2018Assignee: The Spectranetics CorporationInventors: Kenneth P. Grace, Weston H. Lee, Brian E. Kagarise, Robert L. Carver
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Publication number: 20180116721Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiment, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: ApplicationFiled: December 28, 2017Publication date: May 3, 2018Inventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Patent number: 9855100Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiments, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: GrantFiled: August 22, 2016Date of Patent: January 2, 2018Assignee: The Spectranetics CorporationInventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Publication number: 20160361080Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade.Type: ApplicationFiled: August 26, 2016Publication date: December 15, 2016Inventors: Kenneth P. Grace, Weston H. Lee, Brian E. Kagarise, Robert L. Carver
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Publication number: 20160354149Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiments, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: ApplicationFiled: August 22, 2016Publication date: December 8, 2016Inventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Patent number: 9421065Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiments, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: GrantFiled: October 20, 2008Date of Patent: August 23, 2016Assignee: The Spectranetics CorporationInventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Publication number: 20090254074Abstract: A light-diverting catheter tip is provided according to embodiments disclosed herein. The light-diverting catheter tip may be coupled with the distal tip of a laser catheter and divert at least a portion of the light exiting the distal tip of the laser catheter such that the spot size of the laser beam on an object after exiting the catheter tip is larger than the spot size of the light entering the catheter without the catheter tip. The catheter tip may be removably coupled with the catheter or constructed as part of the catheter. In other embodiments, the catheter tip may conduct fluid and/or divert fluid at the tip of the laser catheter.Type: ApplicationFiled: October 20, 2008Publication date: October 8, 2009Applicant: SpectraneticsInventors: Robert Splinter, Robert L. Carver, Ted A. Giem, Kevin D. Taylor, Clint Fix
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Patent number: 4853614Abstract: A method and apparatus for measuring the moisture content of a material wherein the measuring apparatus is positioned within a falling stream of the material to thereby continuously sample the material. The mounting angle and sideboard geometry of the apparatus are selected to give equivalent of in-bin mounting in terms of density and void to solid ratio variation so that accurate measurements may be obtained. The position of the apparatus is such that sample integrity may be visually verified and measurement error by improper sampling avoided. The method and apparatus are particularly advantageous in the manufacture of concrete wherein moisture content of sand or other granular material incorporated into the concrete must be accurately determined. The present invention allows the moisture measurement to be carried out as an in-line proceedure in the manufacturing process.Type: GrantFiled: March 11, 1988Date of Patent: August 1, 1989Inventor: Robert L. Carver