Patents by Inventor Rachid Mahrouche
Rachid Mahrouche 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: 8298218Abstract: A cryogenic medical device is provided, including a catheter body defining a proximal portion and a distal portion; a expandable treatment element on the distal portion of the catheter body; a plurality of granules disposed within the expandable treatment element; an encapsulation member surrounding the plurality of granules, the encapsulating member having a plurality of selectable geometric configurations; and an actuator element coupled to the encapsulation member for the selective adjustment thereof. A method for thermally treating a selected region of tissue is also provided.Type: GrantFiled: July 29, 2009Date of Patent: October 30, 2012Assignee: Medtronic Cryocath LPInventor: Rachid Mahrouche
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Patent number: 8298217Abstract: An elongated catheter device with a distal balloon assembly is adapted for endovascular insertion. Coolant injected through the device may, in different embodiments, directly cool tissue contacting the balloon, or may cool a separate internal chamber. Plural balloons may be provided, wherein a secondary outer balloon surrounds a primary inner balloon, the primary balloon being filled with coolant and acting as the cooling chamber, the secondary balloon being coupled to a vacuum return lumen to serve as a robust leak containment device and thermal insulator around the cooling chamber. One or more sensors may be disposed between the balloons or the vacuum return lumen, to detect leaks and control the flow of fluid through the device. Examples of sensors include pressure and temperature sensors, optical sensors, magnetic flow switches and flow meters.Type: GrantFiled: March 25, 2009Date of Patent: October 30, 2012Assignee: Medtronic Cryocath LPInventors: Miriam Lane, Marwan Abboud, Rachid Mahrouche, Teresa Ann Mihalik
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Publication number: 20120271291Abstract: The present invention provides a medical device having an elongate body with both a proximal end and a distal end, wherein the elongate body defines an intake lumen and an exhaust lumen. The medical device also has a first pliable element defining a cooling chamber disposed at a point along the elongate body, with the cooling chamber being in fluid communication with the intake lumen and the exhaust lumen. A second pliable element is provided which at least partially encloses the first pliable element, thereby defining a junction between the first and second pliable element. A check valve is included which is in fluid communication with the junction between the first pliable element and second pliable element, the valve further being in fluid communication with the exhaust lumen. Additionally, the medical device may include sensors or other monitoring means in fluid communication with the junction and the cooling chamber.Type: ApplicationFiled: June 19, 2012Publication date: October 25, 2012Applicant: MEDTRONIC CRYOCATH LPInventors: Marwan ABBOUD, Rachid MAHROUCHE, Teresa Ann MIHALIK, Chadi HARMOUCHE, Jean-Luc PAGEARD, John W. LEHMANN
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Patent number: 8225643Abstract: The present invention provides a medical device having an elongate body with both a proximal end and a distal end, wherein the elongate body defines an intake lumen and an exhaust lumen. The medical device also has a first pliable element defining a cooling chamber disposed at a point along the elongate body, with the cooling chamber being in fluid communication with the intake lumen and the exhaust lumen. A second pliable element is provided which at least partially encloses the first pliable element, thereby defining a junction between the first and second pliable element. Moreover, a check valve is included which is in fluid communication with the junction between the first pliable element and second pliable element, the valve further being in fluid communication with the exhaust lumen. In addition, the medical device may include sensors or other monitoring means in fluid communication with the junction and the cooling chamber.Type: GrantFiled: May 22, 2008Date of Patent: July 24, 2012Assignee: Medtronic Cryocath LPInventors: Marwan Abboud, Rachid Mahrouche, Teresa Ann Mihalik, Chadi Harmouche, Jean-Luc Pageard, John W. Lehmann
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Patent number: 8206345Abstract: The present invention provides a medical device having an elongate body with both a proximal end and a distal end, wherein the elongate body defines an intake lumen and an exhaust lumen. The medical device also has a first pliable element defining a cooling chamber disposed at a point along the elongate body, with the cooling chamber being in fluid communication with the intake lumen and the exhaust lumen. A second pliable element is provided which at least partially encloses the first pliable element, thereby defining a junction between the first and second pliable element. Moreover, a check valve is included which is in fluid communication with the junction between the first pliable element and second pliable element, the valve further being in fluid communication with the exhaust lumen. In addition, the medical device may include sensors or other monitoring means in fluid communication with the junction and the cooling chamber.Type: GrantFiled: March 7, 2005Date of Patent: June 26, 2012Assignee: Medtronic Cryocath LPInventors: Marwan Abboud, Rachid Mahrouche, Teresa Ann Mihalik, Chadi Harmouche, Jean-Luc Pageard, John W. Lehmann
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Publication number: 20110029048Abstract: A cryogenic medical device is provided, including a catheter body defining a proximal portion and a distal portion; a expandable treatment element on the distal portion of the catheter body; a plurality of granules disposed within the expandable treatment element; an encapsulation member surrounding the plurality of granules, the encapsulating member having a plurality of selectable geometric configurations; and an actuator element coupled to the encapsulation member for the selective adjustment thereof. A method for thermally treating a selected region of tissue is also provided.Type: ApplicationFiled: July 29, 2009Publication date: February 3, 2011Inventor: Rachid MAHROUCHE
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Patent number: 7780657Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: GrantFiled: February 23, 2007Date of Patent: August 24, 2010Assignee: Medtronic Cryocath LPInventors: Marwan Abboud, Rachid Mahrouche, Jean-Pierre Lalonde, Dan Wittenberger
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Patent number: 7727228Abstract: A system and method for controlling the inflation, ablation, and deflation of a balloon catheter is provided. The system includes a balloon catheter, a console having a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system comprises a PID (Proportional Integral Derivative) controller or other pressure-sensing device that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted.Type: GrantFiled: March 23, 2004Date of Patent: June 1, 2010Assignee: Medtronic Cryocath LPInventors: Marwan Abboud, Rachid Mahrouche, Teresa Ann Mihalik, Chadi Harmouche, Eric Monger
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Publication number: 20090182319Abstract: An elongated catheter device with a distal balloon assembly is adapted for endovascular insertion. Coolant injected through the device may, in different embodiments, directly cool tissue contacting the balloon, or may cool a separate internal chamber. Plural balloons may be provided, wherein a secondary outer balloon surrounds a primary inner balloon, the primary balloon being filled with coolant and acting as the cooling chamber, the secondary balloon being coupled to a vacuum return lumen to serve as a robust leak containment device and thermal insulator around the cooling chamber. One or more sensors may be disposed between the balloons or the vacuum return lumen, to detect leaks and control the flow of fluid through the device. Examples of sensors include pressure and temperature sensors, optical sensors, magnetic flow switches and flow meters.Type: ApplicationFiled: March 25, 2009Publication date: July 16, 2009Applicant: CryoCath Technologies Inc.Inventors: Miriam Lane, Marwan Abboud, Rachid Mahrouche, Teresa Mihalik
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Patent number: 7527622Abstract: An elongated catheter device with a distal balloon assembly is adapted for endovascular insertion. Coolant injected through the device may, in different embodiments, directly cool tissue contacting the balloon, or may cool a separate internal chamber. Plural balloons may be provided, wherein a secondary outer balloon surrounds a primary inner balloon, the primary balloon being filled with coolant and acting as the cooling chamber, the secondary balloon being coupled to a vacuum return lumen to serve as a robust leak containment device and thermal insulator around the cooling chamber. One or more sensors may be disposed between the balloons or the vacuum return lumen, to detect leaks and control the flow of fluid through the device. Examples of sensors include pressure and temperature sensors, optical sensors, magnetic flow switches and flow meters.Type: GrantFiled: July 8, 2004Date of Patent: May 5, 2009Assignee: CryoCath Technologies Inc.Inventors: Miriam Lane, Marwan Abboud, Rachid Mahrouche, Teresa Mihalik
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Publication number: 20090088735Abstract: A system and method for controlling the inflation, ablation, and deflation of a balloon catheter. The system includes a balloon catheter, a console, a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system may include controller that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: CRYOCATH TECHNOLOGIES INC.Inventors: Marwan ABBOUD, Rachid MAHROUCHE
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Publication number: 20080221508Abstract: The present invention provides a medical device having an elongate body with both a proximal end and a distal end, wherein the elongate body defines an intake lumen and an exhaust lumen. The medical device also has a first pliable element defining a cooling chamber disposed at a point along the elongate body, with the cooling chamber being in fluid communication with the intake lumen and the exhaust lumen. A second pliable element is provided which at least partially encloses the first pliable element, thereby defining a junction between the first and second pliable element. Moreover, a check valve is included which is in fluid communication with the junction between the first pliable element and second pliable element, the valve further being in fluid communication with the exhaust lumen. In addition, the medical device may include sensors or other monitoring means in fluid communication with the junction and the cooling chamber.Type: ApplicationFiled: May 22, 2008Publication date: September 11, 2008Applicant: CryoCath Technologies Inc.Inventors: Marwan Abboud, Rachid Mahrouche, Teresa Ann Mihalik, Chadi Harmouche, Jean-Luc Pageard, John W. Lehmann
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Publication number: 20080039791Abstract: A system and method for controlling the inflation, ablation, and deflation of a balloon catheter. The system includes a balloon catheter, a console, a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system may include controller that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted.Type: ApplicationFiled: October 18, 2007Publication date: February 14, 2008Applicant: CryoCath Technologies Inc.Inventors: Marwan Abboud, Rachid MAHROUCHE, Chadi HARMOUCHE, Teresa MIHALIK, Gilles DESROCHERS
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Patent number: 7318821Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: GrantFiled: July 22, 2003Date of Patent: January 15, 2008Assignee: CryoCath Technologies Inc.Inventors: Jean-Pierre Lalonde, Marwan Abboud, Rachid Mahrouche
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Publication number: 20080009925Abstract: A system and method for controlling the inflation, ablation, and deflation of a balloon catheter. The system includes a balloon catheter, a console, having a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system comprises a PID (Proportional Integral Derivative) controller or other pressure-sensing device that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted. In one embodiment, an intermediate console is placed between the console and the balloon catheter and coupled thereto.Type: ApplicationFiled: September 24, 2007Publication date: January 10, 2008Applicant: CRYOCATH TECHNOLOGIES INC.Inventors: Marwan ABBOUD, Rachid MAHROUCHE, Teresa MIHALIK, Chadi HARMOUCHE, Eric MONGER
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Publication number: 20070233055Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: ApplicationFiled: February 23, 2007Publication date: October 4, 2007Inventors: Marwan Abboud, Rachid Mahrouche, Jean Lalonde, Dan Wittenberger
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Publication number: 20070161974Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: ApplicationFiled: February 23, 2007Publication date: July 12, 2007Inventors: Marwan Abboud, Rachid Mahrouche, Jean-Pierre Lalonde, Dan Wittenberger
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Publication number: 20070093799Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: ApplicationFiled: October 13, 2006Publication date: April 26, 2007Inventors: Marwan Abboud, Rachid Mahrouche, Jean-Pierre Lalonde, Dan Wittenberger
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Patent number: 7207986Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: GrantFiled: July 14, 2003Date of Patent: April 24, 2007Assignee: CryoCath Technologies Inc.Inventors: Marwan Abboud, Rachid Mahrouche, Jean-Pierre Lalonde, Dan Wittenberger
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Patent number: RE43007Abstract: A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console includes a first cooling system directing coolant to the medical device at a first temperature along a coolant supply line and a second cooling system chilling the coolant within the coolant supply line to a temperature below the first temperature before the coolant reaches the connection point.Type: GrantFiled: July 15, 2008Date of Patent: December 6, 2011Assignee: Medtronic Cryocath LPInventors: Jean-Pierre Lalonde, Marwan Abboud, Rachid Mahrouche, Dan Wittenberger