Patents by Inventor Ravish Sachar
Ravish Sachar 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: 10702367Abstract: A percutaneous transluminal angioplasty device having an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon and downstream from the blockage to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure is performed. The embolic filter is normally collapsed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon is properly positioned, however, means operatively associated with the embolic filter are actuated to erect the filter to operatively position a filter mesh across the lumen of the vessel.Type: GrantFiled: July 17, 2017Date of Patent: July 7, 2020Assignee: Contego Medical, LLCInventors: Ravish Sachar, Udayan Patel
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Publication number: 20190231508Abstract: A percutaneous transluminal angioplasty device, comprising an elongated catheter, an interventional device operably coupled to the proximal end of the catheter, a filter operably coupled to the distal end of the catheter, the filter movable between a collapsed and deployed position, and an actuator wire for deploying the collapsing the filter. At least a portion of the actuator wire extends within the catheter. The filter comprises a filter chassis comprising a movable collar a fixed collar and a tubular braided scaffolding coupled between the movable collar and the fixed collar. The filter chassis also comprises a filter membrane coupled to the tubular braided scaffolding.Type: ApplicationFiled: April 10, 2019Publication date: August 1, 2019Inventors: Ravish Sachar, Udayan Patel
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Patent number: 10292805Abstract: A percutaneous transluminal device, comprising an elongated catheter, an interventional device operably coupled to the proximal end of the catheter, a filter operably coupled to the distal end of the catheter, the filter movable between a collapsed and deployed position 218, and an actuator wire for deploying the collapsing the filter. The filter including a filter chassis comprising a movable collar a fixed collar and a tubular braided scaffolding coupled between the movable collar and the fixed collar. Each wire of the braided scaffolding moving independently with respect to the other wires between the movable collar and the fixed collar as the filter moves between the collapsed position and the deployed position.Type: GrantFiled: January 25, 2016Date of Patent: May 21, 2019Assignee: Contego Medical, LLCInventors: Ravish Sachar, Udayan Patel
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Publication number: 20190133616Abstract: The device disclosed herein is used to the remove a thrombus from the vasculature. It includes an aspiration catheter and a thrombus retrieval device that extends through the lumen of the aspiration catheter. An expandable braided assembly extends over a distal region of the retrieval device, and an activation wire extends through the lumen of the retrieval device to attach to and control the expansion of the braided assembly. Applying tension to the activation wire causes the braided assembly to expand to a diameter of the practitioner's choosing. For example, the practitioner may apply a first level of tension to the activation wire to deploy the braided assembly to a first diameter and then later change the diameter by applying a different level of tension. The expanded braided assembly contacts the thrombus and is pulled proximally toward the aspiration catheter to assist in thrombus removal.Type: ApplicationFiled: November 9, 2018Publication date: May 9, 2019Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
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Publication number: 20190015231Abstract: A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body.Type: ApplicationFiled: May 11, 2018Publication date: January 17, 2019Inventors: Ravish Sachar, Eugene Serina
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Publication number: 20180161143Abstract: Various implementations of a percutaneous transluminal angioplasty device include a catheter, a filter, and an expandable balloon. The filter is coupled adjacent a distal end of the catheter and is movable between an unexpanded and expanded configuration via a filter activation wire extending through a lumen of the catheter. An anti-stenotic therapeutic agent is disposed on an outer surface of the balloon, and the balloon is disposed on the catheter proximally of the filter. An axial movable sheath is positioned over the balloon and filter during deployment to a target site and is axially retracted away from the filter and balloon prior to treatment of a lesion. At the target site, the exposed filter is expanded via the filter activation wire. Then, the exposed balloon is inflated to dilate and deliver the therapeutic agent to the lesion.Type: ApplicationFiled: December 13, 2017Publication date: June 14, 2018Inventors: Ravish Sachar, Eugene Serina, Dave Stern
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Patent number: 9968472Abstract: A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body.Type: GrantFiled: October 27, 2016Date of Patent: May 15, 2018Assignee: Contego Medical, LLCInventors: Ravish Sachar, Eugene Serina
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Publication number: 20170348122Abstract: Implementations described herein comprise expandable stents configured to maintain a substantially constant length between a collapsed position and a deployed position having a plurality of spring members and a plurality of biasable couplings connecting adjacent spring members. Each spring member includes a plurality of integrally connected wave members formed in a ring shape, each wave member has a plurality of curved segments having a plurality of substantially straight segments disposed therebetween. The plurality of biasable couplings are adapted to elongate upon movement of the stent from the collapsed position to the deployed position to proportionally compensate for the decrease in amplitude of the plurality of wave members of the plurality of spring members such that the stent maintains a substantially constant length.Type: ApplicationFiled: January 20, 2017Publication date: December 7, 2017Inventors: Ravish Sachar, Tanhum Feld
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Publication number: 20170312069Abstract: A percutaneous transluminal angioplasty device having an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon and downstream from the blockage to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure is performed. The embolic filter is normally collapsed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon is properly positioned, however, means operatively associated with the embolic filter are actuated to erect the filter to operatively position a filter mesh across the lumen of the vessel.Type: ApplicationFiled: July 17, 2017Publication date: November 2, 2017Inventors: Ravish Sachar, Udayan Patel
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Patent number: 9707071Abstract: A percutaneous transluminal angioplasty device includes an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon. Thus the filter is downstream from the blockage and is properly positioned to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure is performed. The embolic filter is normally collapsed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon is properly positioned, however, means operatively associated with the embolic filter are actuated to erect the filter to position a filter mesh across the lumen of the vessel.Type: GrantFiled: June 14, 2007Date of Patent: July 18, 2017Assignee: Contego Medical LLCInventors: Ravish Sachar, Udayan Patel
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Publication number: 20170112647Abstract: A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body.Type: ApplicationFiled: October 27, 2016Publication date: April 27, 2017Inventors: Ravish Sachar, Udayan Patel, Eugene Serina
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Patent number: 9510930Abstract: An angioplasty device has a filter associated with it to capture embolic particles that may be broken free during an angioplasty procedure. In one embodiment the embolic filter has a frame in which struts are connected to end rings and to each other by a plurality of interconnected oval members. In another embodiment the device includes an actuator at the proximal end of an actuator wire. By rotating a knob on the device, the physician can smoothly tension the wire by a predetermined amount to prevent the filter from opening too much or too little. Various other embodiments of filter frames are also disclosed.Type: GrantFiled: October 22, 2009Date of Patent: December 6, 2016Assignee: Contego Medical, LLCInventors: Udayan G. Patel, Ravish Sachar
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Publication number: 20160287844Abstract: A percutaneous transluminal angioplasty device includes an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon. Thus the filter can be down-stream from the blockage and can be properly positioned to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure can be performed. The embolic filter can be normally un-deployed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon can be properly positioned, however, means operatively associated with the embolic filter can be actuated to deploy the filter to position a filter mesh across the lumen of the vessel.Type: ApplicationFiled: April 22, 2016Publication date: October 6, 2016Inventors: Ravish Sachar, Udayan Patel
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Publication number: 20160213458Abstract: A percutaneous transluminal device, comprising an elongated catheter, an interventional device operably coupled to the proximal end of the catheter, a filter operably coupled to the distal end of the catheter, the filter movable between a collapsed and deployed position 218, and an actuator wire for deploying the collapsing the filter. The filter including a filter chassis comprising a movable collar a fixed collar and a tubular braided scaffolding coupled between the movable collar and the fixed collar. Each wire of the braided scaffolding moving independently with respect to the other wires between the movable collar and the fixed collar as the filter moves between the collapsed position and the deployed position.Type: ApplicationFiled: January 25, 2016Publication date: July 28, 2016Inventors: Ravish Sachar, Udayan Patel
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Patent number: 9339403Abstract: A medical treatment device that includes a medical adhesive and a medical device. The medical adhesive is formulated to at least partially physically retain the medical device in a particular form until the medical device is at least partially deployed to a treatment area and/or to at least partially physical connect the medical device to a deployment device until the medical device is at least partially deployed to a treatment area. The medical adhesive can include at least one biological agent.Type: GrantFiled: March 3, 2006Date of Patent: May 17, 2016Assignee: ICON MEDICAL CORP.Inventors: Joseph G. Furst, Ravish Sachar
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Publication number: 20160089228Abstract: A percutaneous transluminal temporary embolic protection device includes an embolic filter mounted to a guidewire shaft at a location proximate the distal end of the guidewire. The filter can be positioned down-stream from a thrombectomy treatment site at a target location and can be properly positioned to capture embolic particles that may be set loose into the blood stream as the thrombectomy procedure is performed.Type: ApplicationFiled: September 25, 2015Publication date: March 31, 2016Inventors: Ravish Sachar, Udayan Patel
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Publication number: 20150133918Abstract: A neuromodulation device having means for selective denervation of nerves in a selected portions of a blood vessel; and an embolic filter mounted to the catheter shaft at a location distal to the catheter balloon. Thus the filter can be down-stream from the blockage and can be properly positioned to capture embolic particles that can be set loose into the blood stream as the neuromodulation procedure can be performed. The embolic filter can be normally un-deployed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the neuromodulation device is properly positioned, however, means operatively associated with the embolic filter can be actuated to deploy the filter to position a filter mesh across the lumen of the vessel.Type: ApplicationFiled: November 10, 2014Publication date: May 14, 2015Inventor: RAVISH SACHAR
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Publication number: 20150018928Abstract: A percutaneous transluminal angioplasty device having an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon and downstream from the blockage to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure is performed. The embolic filter is normally collapsed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon is properly positioned, however, means operatively associated with the embolic filter are actuated to erect the filter to operatively position a filter mesh across the lumen of the vessel.Type: ApplicationFiled: June 24, 2014Publication date: January 15, 2015Inventors: RAVISH SACHAR, GREGG SUTTON, LARRY A. ROBERTS
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Publication number: 20140277383Abstract: Implementations described herein comprise expandable stents configured to maintain a substantially constant length between a collapsed position and a deployed position having a plurality of spring members and a plurality of biasable couplings connecting adjacent spring members. Each spring member includes a plurality of integrally connected wave members formed in a ring shape, each wave member has a plurality of curved segments having a plurality of substantially straight segments disposed therebetween. The plurality of biasable couplings are adapted to elongate upon movement of the stent from the collapsed position to the deployed position to proportionally compensate for the decrease in amplitude of the plurality of wave members of the plurality of spring members such that the stent maintains a substantially constant length.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: CONTEGO MEDICAL, LLCInventors: RAVISH SACHAR, TANHUM FELD
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Publication number: 20140214067Abstract: A percutaneous transluminal angioplasty device includes an embolic filter mounted to the catheter shaft at a location distal to the angioplasty balloon. Thus the filter can be down-stream from the blockage and can be properly positioned to capture embolic particles that may be set loose into the blood stream as the angioplasty procedure can be performed. The embolic filter can be normally un-deployed against the catheter shaft to facilitate introduction and withdrawal of the device to and from the operative site. Once the angioplasty balloon can be properly positioned, however, means operatively associated with the embolic filter can be actuated to erect the filter to position a filter mesh across the lumen of the vessel.Type: ApplicationFiled: November 27, 2013Publication date: July 31, 2014Applicant: Contego Medical, LLCInventors: Ravish Sachar, Udayan G. Patel