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: 11931502Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: GrantFiled: April 27, 2023Date of Patent: March 19, 2024Assignee: Contego Medical, Inc.Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Patent number: 11865022Abstract: 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: February 19, 2021Date of Patent: January 9, 2024Assignee: Contego Medical, Inc.Inventors: Ravish Sachar, Eugene Serina, Udayan Patel
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Patent number: 11844679Abstract: 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: GrantFiled: October 28, 2021Date of Patent: December 19, 2023Assignee: Contego Medical, LLCInventors: Ravish Sachar, Udayan Patel
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Publication number: 20230256155Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: ApplicationFiled: April 27, 2023Publication date: August 17, 2023Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Patent number: 11717603Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: GrantFiled: April 22, 2022Date of Patent: August 8, 2023Assignee: Contego Medical, Inc.Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Publication number: 20230233818Abstract: Devices, systems, and methods for performing thrombectomy procedures are disclosed herein. The devices can include an aspiration catheter which optionally has a beveled distal end. The aspiration catheter is advanced to a position adjacent a thrombus. A blocking element can be expanded near the distal end of the aspiration catheter to block fluid flow during the procedure. The devices can include a thrombus retrieval device supporting a braided assembly that grips and facilitates removal of the thrombus. The braided assembly is expandable to a range of expanded outer diameters by varying the level of tension in an activation wire attached thereto. An expander can be deployed beneath the braided assembly to exert an outward expansion force upon the braid, thereby increasing the grip between the braided assembly and the thrombus. The braided assembly contacts the thrombus and the retrieval device pulls it proximally toward the aspiration catheter.Type: ApplicationFiled: January 27, 2023Publication date: July 27, 2023Inventors: Ajit Nair, Ravish Sachar, Hung Ha
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Patent number: 11679195Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: GrantFiled: April 22, 2022Date of Patent: June 20, 2023Assignee: Contego Medical, Inc.Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Patent number: 11679194Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: GrantFiled: April 22, 2022Date of Patent: June 20, 2023Assignee: Contego Medical, Inc.Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Publication number: 20230103258Abstract: 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 1, 2022Publication date: March 30, 2023Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
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Publication number: 20220378592Abstract: 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: August 10, 2022Publication date: December 1, 2022Inventors: Ravish Sachar, Eugene Serina, Udayan Patel
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Publication number: 20220378591Abstract: 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: August 10, 2022Publication date: December 1, 2022Inventors: Ravish Sachar, Eugene Serina, Udayan Patel
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Patent number: 11490908Abstract: 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: GrantFiled: November 9, 2018Date of Patent: November 8, 2022Assignee: Contego Medical , Inc.Inventors: Ravish Sachar, Eugene Serina, Hung Ha, Dave Stern
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Publication number: 20220339338Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Publication number: 20220338887Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Publication number: 20220339339Abstract: Aspiration systems and methods for controlling blood loss during thrombus removal are disclosed herein. The systems include an aspiration catheter, an aspiration tubing, a receptacle for collecting aspirated blood, a vacuum line coupled to the receptacle, and a sensor configured to measure a flow parameter associated with a liquid within an aspiration lumen. The systems further include a regulator configured to adjust a vacuum pressure within the vacuum line, and a vacuum controller operably coupled to the sensor and the regulator. The vacuum controller is configured to receive the flow parameter from the sensor, compare the flow parameter to a target range for the flow parameter, and send an automatic control signal to the regulator based on a comparison of the flow parameter to the target range. The automatic control signal causes the regulator to adjust the vacuum pressure within the vacuum line.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Inventors: Ajit Nair, Christopher R. Kilgus, Ravish Sachar
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Publication number: 20220142765Abstract: 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: October 28, 2021Publication date: May 12, 2022Inventors: Ravish Sachar, Udayan Patel
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Patent number: 11166802Abstract: 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: GrantFiled: April 10, 2019Date of Patent: November 9, 2021Assignee: CONTEGO MEDICAL, Inc.Inventors: Ravish Sachar, Udayan Patel
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Publication number: 20210228386Abstract: 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: February 19, 2021Publication date: July 29, 2021Inventors: Ravish Sachar, Eugene Serina, Udayan Patel
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Patent number: 10932929Abstract: 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: May 11, 2018Date of Patent: March 2, 2021Assignee: Contego Medical, Inc.Inventors: Ravish Sachar, Eugene Serina
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Patent number: 10849730Abstract: 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: GrantFiled: December 13, 2017Date of Patent: December 1, 2020Assignee: Contego Medical, Inc.Inventors: Ravish Sachar, Eugene Serina, Dave Stern