Patents by Inventor Michael R. Butler
Michael R. Butler 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).
-
Publication number: 20180221551Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.Type: ApplicationFiled: April 5, 2018Publication date: August 9, 2018Inventors: Adam R. Tanner, Michael R. Butler, Todd Jenkins
-
Patent number: 10039872Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: May 8, 2017Date of Patent: August 7, 2018Assignee: TC1 LLCInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
-
Patent number: 9987404Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.Type: GrantFiled: May 8, 2017Date of Patent: June 5, 2018Assignee: TC1 LLCInventors: Adam R. Tanner, Michael R. Butler, Todd Jenkins
-
Publication number: 20180021494Abstract: A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. A motor assembly can impart rotation on the impeller through the shaft assembly, the motor assembly comprising a motor which rotates the shaft assembly. The catheter pump system can include a fluid pathway which conveys fluid proximally during operation of the catheter pump system. A seal can be disposed between the motor assembly and the impeller. The seal can be configured to impede or prevent the fluid from the fluid pathway from entering the motor assembly at least about an outer periphery of the shaft assembly. The seal can comprise an opening through which a portion of the shaft assembly extends.Type: ApplicationFiled: July 19, 2017Publication date: January 25, 2018Inventors: Paul F. Muller, Keif M. Fitzgerald, Michael R. Butler, Todd Jenkins
-
Publication number: 20180021495Abstract: A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. The catheter pump system can include a motor assembly, the motor assembly comprising a chamber and a shaft-driving portion disposed in the chamber. The shaft-driving portion can be configured to impart rotation to the impeller through the shaft assembly. The chamber can be filled with a gas that at least partially surrounds the shaft-driving portion. A fluid pathway can convey fluid proximally during operation of the catheter pump system. A bypass pathway can be in fluid communication with the fluid pathway, the bypass pathway configured to direct at least a portion of the fluid to bypass the chamber.Type: ApplicationFiled: July 19, 2017Publication date: January 25, 2018Inventors: Paul F. Muller, Keif M. Fitzgerald, Michael R. Butler, Todd Jenkins
-
Publication number: 20170319764Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen in which waste fluid flows proximally therethrough during operation of the catheter pump. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate, the rotor including a longitudinal rotor lumen therethrough. The motor assembly can also comprise a stator assembly disposed about the rotor. During operation of the catheter pump, the waste fluid flows from the lumen into the chamber such that at least a portion of the waste fluid flows proximally through the longitudinal rotor lumen.Type: ApplicationFiled: June 28, 2017Publication date: November 9, 2017Inventors: Adam R. Tanner, Paul F. Muller, Alan Schenck, Michael R. Butler, Todd Jenkins
-
Patent number: 9770543Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen in which waste fluid flows proximally therethrough during operation of the catheter pump. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate, the rotor including a longitudinal rotor lumen therethrough. The motor assembly can also comprise a stator assembly disposed about the rotor. During operation of the catheter pump, the waste fluid flows from the lumen into the chamber such that at least a portion of the waste fluid flows proximally through the longitudinal rotor lumen.Type: GrantFiled: January 21, 2016Date of Patent: September 26, 2017Assignee: TC1 LLCInventors: Adam R. Tanner, Paul F. Muller, Alan Schenck, Michael R. Butler, Todd Jenkins
-
Publication number: 20170239405Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.Type: ApplicationFiled: May 8, 2017Publication date: August 24, 2017Inventors: Adam R. Tanner, Michael R. Butler, Todd Jenkins
-
Publication number: 20170239406Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: ApplicationFiled: May 8, 2017Publication date: August 24, 2017Inventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
-
Patent number: 9675740Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: April 29, 2016Date of Patent: June 13, 2017Assignee: TC1 LLCInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
-
Patent number: 9675738Abstract: A catheter pump includes an impeller and a drive shaft coupled with the impeller. The catheter pump includes a motor assembly coupled with the drive shaft. The motor assembly includes a motor housing having an opening through a wall of the motor housing and a flexible member disposed about the opening, the flexible member configured to engage a connection portion of a platform.Type: GrantFiled: January 21, 2016Date of Patent: June 13, 2017Assignee: TC1 LLCInventors: Adam R. Tanner, Michael R. Butler
-
Patent number: 9675739Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.Type: GrantFiled: January 21, 2016Date of Patent: June 13, 2017Assignee: TC1 LLCInventors: Adam R. Tanner, Michael R. Butler, Todd Jenkins
-
Publication number: 20170072120Abstract: A catheter pump is disclosed herein. The catheter pump can include a catheter assembly that comprises a drive shaft and an impeller coupled to a distal end of the drive shaft. A driven assembly can be coupled to a proximal end of the drive shaft within a driven assembly housing. The catheter pump can also include a drive system that comprises a motor and a drive magnet coupled to an output shaft of the motor. The drive system can include a drive assembly housing having at least one magnet therein. Further, a securement device can be configured to prevent disengagement of the driven assembly housing from the drive assembly housing during operation of the pump.Type: ApplicationFiled: August 19, 2016Publication date: March 16, 2017Inventors: Adam R. Tanner, Richard L. Keenan, Doug M. Messner, Michael R. Butler
-
Publication number: 20160243295Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: ApplicationFiled: April 29, 2016Publication date: August 25, 2016Inventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
-
Patent number: 9421311Abstract: A catheter pump is disclosed herein. The catheter pump can include a catheter assembly that comprises a drive shaft and an impeller coupled to a distal end of the drive shaft. A driven assembly can be coupled to a proximal end of the drive shaft within a driven assembly housing. The catheter pump can also include a drive system that comprises a motor and a drive magnet coupled to an output shaft of the motor. The drive system can include a drive assembly housing having at least one magnet therein. Further, a securement device can be configured to prevent disengagement of the driven assembly housing from the drive assembly housing during operation of the pump.Type: GrantFiled: March 13, 2013Date of Patent: August 23, 2016Assignee: THORATEC CORPORATIONInventors: Adam R. Tanner, Richard L. Keenan, Doug M. Messner, Michael R. Butler
-
Publication number: 20160213826Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen in which waste fluid flows proximally therethrough during operation of the catheter pump. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate, the rotor including a longitudinal rotor lumen therethrough. The motor assembly can also comprise a stator assembly disposed about the rotor. During operation of the catheter pump, the waste fluid flows from the lumen into the chamber such that at least a portion of the waste fluid flows proximally through the longitudinal rotor lumen.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Inventors: Adam R. Tanner, Paul F. Muller, Alan Schenck, Michael R. Butler, Todd Jenkins
-
Publication number: 20160213827Abstract: A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Inventors: Adam R. Tanner, Michael R. Butler, Todd Jenkins
-
Publication number: 20160213825Abstract: A catheter pump includes an impeller and a drive shaft coupled with the impeller. The catheter pump includes a motor assembly coupled with the drive shaft. The motor assembly includes a motor housing having an opening through a wall of the motor housing and a flexible member disposed about the opening, the flexible member configured to engage a connection portion of a platform.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Inventors: Adam R. Tanner, Michael R. Butler
-
Patent number: 9327067Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: May 13, 2013Date of Patent: May 3, 2016Assignee: THORATEC CORPORATIONInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
-
Patent number: 9067007Abstract: A catheter pump is disclosed herein. The catheter pump can include a catheter assembly that comprises a drive shaft and an impeller coupled to a distal end of the drive shaft. A driven assembly can be coupled to a proximal end of the drive shaft within a driven assembly housing. The catheter pump can also include a drive system that comprises a motor and a drive magnet coupled to an output shaft of the motor. The drive system can include a drive assembly housing having at least one magnet therein. Further, a securement device can be configured to prevent disengagement of the driven assembly housing from the drive assembly housing during operation of the pump.Type: GrantFiled: March 13, 2013Date of Patent: June 30, 2015Assignee: THORATEC CORPORATIONInventors: Adam R. Tanner, Richard L. Keenan, Doug M. Messner, Michael R. Butler