Patents Assigned to A V Medical Technologies, Ltd.
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Publication number: 20240050642Abstract: Double-lumen infusion catheter including: a shaft having proximal section, distal section, and intermediate section therebetween; first and second lumens extending along a length of the shaft and having arc shaped wall therebetween; and an inflatable member provided distally to intermediate section, and over the distal section. First lumen has cross section larger than cross section of second lumen and is configured to receive a guidewire therethrough and allow fluid flow via an unobstructed portion of first lumen. Unobstructed portion is formed along guidewire outer surface, between guidewire outer surface and inner wall of first lumen, and extends from an inlet at proximal end of intermediate section to an outlet at distal end of intermediate section. First lumen is narrowed to approximate a first diameter in shaft proximal and distal sections, and is widened to approximate a second diameter greater than first diameter in the shaft intermediate section.Type: ApplicationFiled: October 23, 2023Publication date: February 15, 2024Applicant: A.V. MEDICAL TECHNOLOGIES LTD.Inventors: Michael Gabriel Tal, Ilan Carmel, Josef Shahrur
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Patent number: 11413436Abstract: A percutaneous transluminal angioplasty (PTA) catheter may be configured to perform vein expansion and occlusion. A infusion port located proximal to the occlusion feature can be used to inject contrast enhancement agent as well as other substances. The catheter can be used especially advantageously in vascular regions associated with hemodialysis access.Type: GrantFiled: February 11, 2020Date of Patent: August 16, 2022Assignee: A V Medical Technologies Ltd.Inventors: Michael G. Tal, Ilan Carmel
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Patent number: 11116948Abstract: Rapid exchange balloon catheter, and applications thereof. The balloon catheter includes a shaft and a guidewire channel. Shaft includes infusion and inflation walls. Infusion wall encloses an infusion lumen and comprises fluid inlet and fluid outlet located distally to fluid inlet. The inflation lumen extending axially therealong opened at a distal end thereof into an inner volume of a dilatation balloon. Guidewire channel is sized to closely fit over a pre-scribed guidewire for allowing unhindered passing therethrough with the guidewire. Guidewire channel includes a channel distal end protruding distally from the balloon with a distal guidewire opening, and a channel proximal end with a proximal guidewire opening at the shaft between fluid inlet and fluid outlet. Applications include methods for angioplasty and revascularization in which a single balloon catheter is used for dilatation and/or occlusion, and for delivering fluid proximally to the balloon.Type: GrantFiled: January 6, 2015Date of Patent: September 14, 2021Assignee: A.V. MEDICAL TECHNOLOGIES, LTDInventors: Michael Gabriel Tal, Ilan Carmel, Ronny Winshtein
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Patent number: 11052188Abstract: Double-lumen infusion catheter including: a shaft having proximal section, distal section, and intermediate section therebetween; first and second lumens extending along a length of the shaft and having arc shaped wall therebetween; and an inflatable member provided distally to intermediate section, and over the distal section. First lumen has cross section larger than cross section of second lumen and is configured to receive a guidewire therethrough and allow fluid flow via an unobstructed portion of first lumen. Unobstructed portion is formed along guidewire outer surface, between guidewire outer surface and inner wall of first lumen, and extends from an inlet at proximal end of intermediate section to an outlet at distal end of intermediate section. First lumen is narrowed to approximate a first diameter in shaft proximal and distal sections, and is widened to approximate a second diameter greater than first diameter in the shaft intermediate section.Type: GrantFiled: February 13, 2017Date of Patent: July 6, 2021Assignee: A.V. Medical Technologies LTDInventors: Michael Gabriel Tal, Ilan Carmel, Josef Shahrur
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Patent number: 10561827Abstract: A percutaneous transluminal angioplasty (PTA) catheter may be configured to perform vein expansion and occlusion. A infusion port (132) located proximal to the occlusion feature (162) can be used to inject contract enhancement agent as well as other substances. The catheter can be used especially advantageously in vascular regions associated with hemodialysis access.Type: GrantFiled: July 8, 2013Date of Patent: February 18, 2020Assignee: A V Medical Technologies, Ltd.Inventors: Michael Gabriel Tal, Ilan Carmel
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Patent number: 10363358Abstract: The present disclosure relates to a PTA (percutaneous transluminal angioplasty) balloon catheter, preferably high pressure type, optionally introducible as an over the wire catheter. The catheter possess the attribute of injecting fluid to the treated site through a dedicated opening proximal to the balloon member, for introduction of fluids such as contrast enhancing material and/or medication. In some embodiments, a single lumen is used, at least in part, both for fluids transfer and dispersion (“infusion”) as well as for guide wire passage. In some such embodiments, a valve mechanism is used to sustain selective operability of the lumen so that fluids will disperse mostly or solely through the proximal dispersion opening rather than the guide wire distal exit opening.Type: GrantFiled: January 8, 2014Date of Patent: July 30, 2019Assignee: A.V. Medical Technologies Ltd.Inventors: Ilan Carmel, Michael Gabriel Tal, Josef Shahrur
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Patent number: 10231857Abstract: Method for sealing a stent graft in an endovascular aneurysm repair. Includes following steps/procedures. Positioning the stent graft to extend across an aneurysm in aneurysmatic host vessel. Introducing and placing a balloon catheter in the host vessel at a location distal to the graft distal end. Inflating balloon to pressure configured for unconstrained balloon expansion with maximal balloon diameter equal to or greater than smallest inner diameter of host vessel, thereby occluding normal blood flowing thereacross. Infusing contrast enhancing material through balloon catheter for allowing radiographic visualization of endoleakage between stent graft and a host vessel wall. Deflating and repositioning balloon to another location within stent graft. Pressurizing balloon to another pressure configured for plastically expanding selected section of stent graft from a smaller diameter to a fixed enlarged diameter.Type: GrantFiled: November 17, 2015Date of Patent: March 19, 2019Assignee: A.V. MEDICAL TECHNOLOGIES LTDInventor: Michael Gabriel Tal
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Publication number: 20170151384Abstract: Double-lumen infusion catheter including: a shaft having proximal section, distal section, and intermediate section therebetween; first and second lumens extending along a length of the shaft and having arc shaped wall therebetween; and an inflatable member provided distally to intermediate section, and over the distal section. First lumen has cross section larger than cross section of second lumen and is configured to receive a guidewire therethrough and allow fluid flow via an unobstructed portion of first lumen. Unobstructed portion is formed along guidewire outer surface, between guidewire outer surface and inner wall of first lumen, and extends from an inlet at proximal end of intermediate section to an outlet at distal end of intermediate section. First lumen is narrowed to approximate a first diameter in shaft proximal and distal sections, and is widened to approximate a second diameter greater than first diameter in the shaft intermediate section.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Applicant: A.V. Medical Technologies LTDInventors: Michael Gabriel TAL, Ilan CARMEL, Josef SHAHRUR
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Publication number: 20160135971Abstract: Method for sealing a stent graft in an endovascular aneurysm repair. Includes following steps/procedures. Positioning the stent graft to extend across an aneurysm in aneurysmatic host vessel. Introducing and placing a balloon catheter in the host vessel at a location distal to the graft distal end. Inflating balloon to pressure configured for unconstrained balloon expansion with maximal balloon diameter equal to or greater than smallest inner diameter of host vessel, thereby occluding normal blood flowing thereacross. Infusing contrast enhancing material through balloon catheter for allowing radiographic visualization of endoleakage between stent graft and a host vessel wall. Deflating and repositioning balloon to another location within stent graft. Pressurizing balloon to another pressure configured for plastically expanding selected section of stent graft from a smaller diameter to a fixed enlarged diameter.Type: ApplicationFiled: November 17, 2015Publication date: May 19, 2016Applicant: A.V. Medical Technologies LTDInventor: Michael Gabriel TAL
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Publication number: 20150359998Abstract: The present disclosure relates to a PTA (percutaneous transluminal angioplasty) balloon catheter, preferably high pressure type, optionally introducible as an over the wire catheter. The catheter possess the attribute of injecting fluid to the treated site through a dedicated opening proximal to the balloon member, for introduction of fluids such as contrast enhancing material and/or medication. In some embodiments, a single lumen is used, at least in part, both for fluids transfer and dispersion (“infusion”) as well as for guide wire passage. In some such embodiments, a valve mechanism is used to sustain selective operability of the lumen so that fluids will disperse mostly or solely through the proximal dispersion opening rather than the guide wire distal exit opening.Type: ApplicationFiled: January 8, 2014Publication date: December 17, 2015Applicant: A.V. Medical Technologies, Ltd.Inventors: Ilan CARMEL, Michael Gabriel TAL, Josef SHAHRUR
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Publication number: 20150209557Abstract: A percutaneous transluminal angioplasty (PTA) catheter may be configured to perform vein expansion and occlusion. A infusion port (132) located proximal to the occlusion feature (162) can be used to inject contract enhancement agent as well as other substances. the catheter can be used espicially advantagrously in vascular regions associated with hemodialysis access.Type: ApplicationFiled: July 8, 2013Publication date: July 30, 2015Applicant: A V Medical Technologies, Ltd.Inventors: Michael Gabriel Tal, Ilan Carmel