Patents by Inventor Mark W. Askew
Mark W. Askew 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: 20240140942Abstract: The present invention relates to fluorinated compounds of formula I and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing the fluorinated compounds of the invention, and methods of treating macular degeneration, diabetic retinopathy (DR), macular edema, diabetic macular edema (DME), and macular edema following retinal vein occlusion (RVO), by administering these compounds and pharmaceutical compositions to subjects in need thereof.Type: ApplicationFiled: June 21, 2023Publication date: May 2, 2024Inventors: Ben C. ASKEW, Richard W. HEIDEBRECHT, Takeru FURUYA, Mark E. DUGGAN, D. Scott EDWARDS
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Publication number: 20220168011Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body.Type: ApplicationFiled: February 17, 2022Publication date: June 2, 2022Inventors: Himanshu N. PATEL, John B. SIMPSON, Anthony J. FERNANDEZ, Richard R. NEWHAUSER, Priyanshu GUPTA, Michael ZUNG, Wendy Ngo LAM, Maegan K. SPENCER, Peter Howard SMITH, Stephen C. DAVIES, Nicholas J. SPINELLI, Charles W. MCNALL, Theodore W. KETAI, Manish KANKARIA, Mark W. ASKEW, Kent C.B. STALKER
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Patent number: 11284916Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body.Type: GrantFiled: November 12, 2019Date of Patent: March 29, 2022Assignee: Avinger, Inc.Inventors: Himanshu N. Patel, John B. Simpson, Anthony J. Fernandez, Richard R. Newhauser, Priyanshu Gupta, Michael Zung, Wendy Ngo Lam, Maegan K. Spencer, Peter Howard Smith, Stephen C. Davies, Nicholas J. Spinelli, Charles W. McNall, Theodore W. Ketai, Manish Kankaria, Mark W. Askew, Kent C. B. Stalker
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Publication number: 20200315654Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body.Type: ApplicationFiled: November 12, 2019Publication date: October 8, 2020Inventors: Himanshu N. PATEL, John B. SIMPSON, Anthony J. FERNANDEZ, Richard R. NEWHAUSER, Priyanshu GUPTA, Michael ZUNG, Wendy Ngo LAM, Maegan K. SPENCER, Peter Howard SMITH, Stephen C. DAVIES, Nicholas J. SPINELLI, Charles W. MCNALL, Theodore W. KETAI, Manish KANKARIA, Mark W. ASKEW, Kent C.B. STALKER
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Patent number: 10548478Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body and an imaging shaft connected to the imaging element and extending within the catheter body. The cutter and the imaging element are mechanically isolated, and the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body.Type: GrantFiled: March 15, 2013Date of Patent: February 4, 2020Assignee: Avinger, Inc.Inventors: John B. Simpson, Priyanshu Gupta, Michael Zung, Wendy N. Lam, Maegan K. Spencer, Peter H. Smith, Stephen C. Davies, Nicholas J. Spinelli, Charles W. McNall, Theodore W. Ketai, Manish Kankaria, Mark W. Askew, Kent C. B. Stalker
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Publication number: 20180368688Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body and an imaging shaft connected to the imaging element and extending within the catheter body. The cutter and the imaging element are mechanically isolated, and the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body.Type: ApplicationFiled: March 15, 2013Publication date: December 27, 2018Inventors: John B. Simpson, Priyanshu Gupta, Michael Zung, Wendy N. Lam, Maegan K. Spencer, Peter H. Smith, Stephen C. Davies, Nicholas J. Spinelli, Charles W. McNall, Theodore W. Ketai, Manish Kankaria, Mark W. Askew, Kent C. B. Stalker
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Patent number: 9949754Abstract: A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.Type: GrantFiled: October 10, 2013Date of Patent: April 24, 2018Assignee: AVINGER, INC.Inventors: Richard R. Newhauser, Mark W. Askew
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Publication number: 20180042639Abstract: A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.Type: ApplicationFiled: October 10, 2013Publication date: February 15, 2018Applicant: AVINGER, INC.Inventors: Richard R. Newhauser, Mark W. Askew
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Publication number: 20160144155Abstract: An occlusion sheath having an expandable member is described herein. The occlusion sheath is configured to occlude or limit blood flow to a vessel while providing a central lumen to allow a catheter, such as an imaging catheter and/or an atherectomy catheter, to travel therethrough.Type: ApplicationFiled: July 1, 2014Publication date: May 26, 2016Inventors: John B. SIMPSON, Theodore W. KETAI, Mark W. ASKEW, Serena S. LOH, Guip T. NGUYEN, Stephen C. DAVIES, Richard R. NEWHAUSER, Peter H. SMITH
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Publication number: 20150272615Abstract: A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.Type: ApplicationFiled: October 10, 2013Publication date: October 1, 2015Applicant: AVINGER, INC.Inventors: Richard R. Newhauser, Mark W. Askew
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Publication number: 20150208922Abstract: An atherectomy catheter includes an elongate flexible catheter body, a cutter near the distal end of the catheter body, a drive shaft connected to the cutter and extending within the catheter body, an imaging element near the distal end of the catheter body and an imaging shaft connected to the imaging element and extending within the catheter body. The cutter and the imaging element are mechanically isolated, and the drive shaft is configured to be axially translated relative to the imaging shaft and the catheter body.Type: ApplicationFiled: March 15, 2013Publication date: July 30, 2015Inventors: John B. Simpson, Priyanshu Gupta, Michael Zung, Wendy N. Lam, Maegan K. Spencer, Peter H. Smith, Stephen C. Davies, Nicholas J. Spinelli, Charles W. McNall, Theodore W. Ketai, Manish Kankaria, Mark W. Askew, Kent C. B. Stalker