Patents Assigned to Abiomed, Inc.
  • Heart pump with passive purge system
    Patent number: 11202901
    Abstract: A heart pump assembly includes an elongate catheter with a proximal portion and a distal portion, a rotor at the distal portion of the elongate catheter, a driveshaft, and a bearing. The rotor can include an impeller blade shaped to induce fluid flow in a first axial direction. The drive shaft may be coupled to or integrally formed with a proximal end of the rotor and can include a pump element formed in a surface of the drive shaft. The bearing can include a bore into which the drive shaft extends. The pump element is shaped so as to induce fluid flow through the bore in a second axial direction which can be the same or opposite to the first axial direction.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 21, 2021
    Assignee: ABIOMED, INC.
    Inventor: Vincent Barry
  • Cardiovascular assist system that quantifies heart function and facilitates heart recovery
    Patent number: 11197618
    Abstract: The systems, devices, and methods presented herein use a heart pump to obtain measurements of cardiovascular function. The heart pumps described herein can operate in parallel with and unload the heart. The system can quantify the functioning of the native heart by measuring certain parameters/signals such as pressure or motor current, then calculate and display one or more metrics of cardiovascular function. These metrics, such as left ventricular end diastolic pressure (LVEDP), left ventricular pressure, and contractility, provide valuable information to a user regarding a patient's state of heart function and recovery.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 14, 2021
    Assignees: ABIOMED, INC., Massachusetts Institute of Technology
    Inventors: Elazer Edelman, Brian Chang, Noam Joesphy, Sonya Sanat Bhavsar
  • Integrated expandable access for medical device introducer
    Patent number: 11197690
    Abstract: An integrated sheath assembly for inserting a medical device such as a percutaneous pump into a vessel can include a first sheath having a first lumen defining a first opening between proximal and distal ends of the first sheath for passage of a portion of the pump and a second sheath having a second lumen defining a second opening between proximal and distal ends of the second sheath. The second lumen is expandable to allow passage of the first sheath containing the portion of the pump. The first sheath fills a space between the second sheath and the portion of the percutaneous pump when the first sheath containing the percutaneous pump is inserted into the second lumen. The first sheath has a first hub, and the second sheath has a second hub. In some embodiments, a single sheath and a movable connector can be integrated on the medical device.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 14, 2021
    Assignee: Abiomed, Inc.
    Inventors: Glen R. Fantuzzi, Thorsten Siess
  • MAGNETIC FIXATION APPARATUS FOR PERCUTANEOUS CATHETER
    Publication number: 20210361927
    Abstract: A catheter apparatus can include a first magnet coupled to a catheter and a second magnet configured to couple to a patient's skin. When the catheter and the first magnet are positioned within a patient's body, the second magnet can exert a magnetic force on the first magnet that stabilizes the catheter relative to the second magnet. The second magnet can be directly attached to the patient's skin or secondary devices such as straps can be used to place the second magnet in a fixed position relative to the patient's body. In some implementations, a plurality of magnets can facilitate holding the catheter in a substantially fixed position within the patient.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: ABIOMED, Inc.
    Inventor: Vincent Barry
  • DUAL LUMEN SHEATH FOR ARTERIAL ACCESS
    Publication number: 20210361926
    Abstract: A sheath assembly for the insertion of a percutaneous pump includes a tubular sheath body dimensioned for insertion into a blood vessel through a vessel aperture. The tubular sheath body includes a wall having a proximal end portion, a distal end portion, a longitudinal axis, an outer surface, an inner surface defining a first lumen substantially parallel to the longitudinal axis, and a second lumen disposed within the wall between the inner surface and the outer surface and extending from the proximal end portion to the distal end portion. The first lumen is dimensioned to allow passage of a portion of the percutaneous pump, and the second lumen is dimensioned for passage of a guidewire. A stylet is removably positioned to substantially occlude the second lumen. The stylet has a proximal end releasably secured to the sheath assembly.
    Type: Application
    Filed: June 18, 2021
    Publication date: November 25, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Scott C. Corbett, Glen R. Fantuzzi, John Murphy, Frank Kirchhoff, David Brousseau, Thorsten Siess
  • METHOD OF PURGING A BLOOD PUMP
    Publication number: 20210339003
    Abstract: A method of operating a blood pump that is purged with a purge solution that contains a pH controlling and buffering agent combined with aqueous dextrose and a reduced amount of heparin or no heparin. The blood pump has a gap between a shaft and housing through which the purge solution flows. In operation, the purge solution exits the housing and is discharged into the patient. The purge solution is therefore required to perform lubricating and heat transfer functions in the pump yet be biocompatible with the patient.
    Type: Application
    Filed: April 22, 2021
    Publication date: November 4, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Soumen Das, Vladimir Gilman, Alexander Ship, Scott C. Corbett, Kar Lee
  • BLOOD PUMP ASSEMBLY HAVING A SENSOR AND A SENSOR SHIELD
    Publication number: 20210322757
    Abstract: A blood pump assembly can include various components such as a housing and a sensor configured to detect one or more characteristics of the blood. In some embodiments, the sensor can be coupled to the housing and can include a sensor membrane configured to deflect in response to a change in a blood parameter (e.g., pressure). The blood pump assembly can include a shield that covers at least a portion of the sensor membrane so as to protect the sensor from damage when the blood pump assembly is inserted through an introducer and navigated through the patient's vasculature and/or when the blood pump assembly is inserted into the heart in a surgical procedure. One or more protective layers can be deposited over the sensor membrane to prevent the sensor membrane from being dissolved through interactions with the patient's blood.
    Type: Application
    Filed: May 5, 2021
    Publication date: October 21, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Ralph Louis D'Ambrosio, Bruce Adams, Michael Thomas Finnegan, Gerd Spanier, Thorsten Siess
  • GUIDEWIRE FOR CANNULA PLACEMENT
    Publication number: 20210299411
    Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.
    Type: Application
    Filed: April 16, 2021
    Publication date: September 30, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Zhenghong Tao, Michael Thomas Finnegan
  • Anti-suction blood pump inlet
    Patent number: 11123541
    Abstract: A heart pump assembly includes an impeller blade coupled to a rotor or a drive shaft, a cannula, a distal projection coupled to a distal end of the cannula and a blood inlet having a plurality of apertures. The plurality of apertures are radially oriented and disposed about a circumference of the cannula. The plurality of apertures include at least a first ring of apertures which are proximal to the distal projection and a second ring of apertures which are proximal of the first ring of apertures. The plurality of apertures can allow the heart pump assembly to continue to function if anatomical structures or tissue become suctioned to a portion of the heart pump.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: September 21, 2021
    Assignee: ABIOMED, INC.
    Inventors: Scott C. Corbett, Ahmad El Katerji, Charles DeLorenzo
  • Data storage and retrieval system for non-contiguous medical device operational data
    Patent number: 11120908
    Abstract: A web-based interface enables medical personnel to remotely monitor medical devices. A monitoring system records operational data and alarms from the medical devices in a file. However, since network connections between the medical devices and the monitoring system are intermittent, the file does not contain a contiguous stream of data for each medical device. The file pauses recording during gaps in network connectivity. The system displays current data, as well as a list of alarms. If medical personnel wish to view more detail about an earlier time or one of the alarms, the system calculates where in the file the medical device data was recorded. This calculation accounts for the discontiguous nature of the data. The system uses times the network connection is made and broken to calculate an index into the file that corresponds to the time of the user-selected alarm.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 14, 2021
    Assignee: Abiomed, Inc.
    Inventors: Alessandro Simone Agnello, Paul Roland Lemay
  • PEEL AWAY HEMOSTASIS VALVE
    Publication number: 20210275791
    Abstract: A hemostasis valve body provides strong sealing around a medical device during insertion of the medical device into a blood vessel, low forces for tearing, and stability during insertion of the medical devices as well as during peel away. The valve body comprises a first surface, a second surface opposite the first surface, an edge, helical slits, and a pair of longitudinal cuts. The helical slits are positioned at a center of the valve body and traverse the first surface to the second surface. The helical slits provide a seal around the medical device. Each respective longitudinal cut extends from the first surface partially through the valve body to a depth short of the second surface for at least part of a length of the respective longitudinal cut. The longitudinal cuts facilitate a separation of the valve body into two parts during a peel away action.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Christopher Nason Korkuch, Glen R. Fantuzzi
  • Magnetic fixation apparatus for percutaneous catheter
    Patent number: 11110263
    Abstract: A catheter apparatus can include a first magnet coupled to a catheter and a second magnet configured to couple to a patient's skin. When the catheter and the first magnet are positioned within a patient's body, the second magnet can exert a magnetic force on the first magnet that stabilizes the catheter relative to the second magnet. The second magnet can be directly attached to the patient's skin or secondary devices such as straps can be used to place the second magnet in a fixed position relative to the patient's body. In some implementations, a plurality of magnets can facilitate holding the catheter in a substantially fixed position within the patient.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 7, 2021
    Assignee: ABIOMED, INC.
    Inventor: Vincent Barry
  • EXPANDABLE INTRODUCER SHEATH FOR MEDICAL DEVICE
    Publication number: 20210260344
    Abstract: An expandable medical sheath can include a sheath body having a lumen that extends between proximal and distal ends of the sheath. The sheath can have first and second members where the first member has a different elastic modulus than the second member such that one provides elasticity to the sheath and the other provides column strength. The first and second members can be coupled together in alternating sections to form the tubular sheath or the stiffer members can be embedded in the elastic member along all or a portion of the longitudinal length of the sheath. The sheath can automatically move to an expanded state to allow a larger diameter medical device to pass through the lumen, and once through the sheath can automatically return to its initial diameter.
    Type: Application
    Filed: March 4, 2021
    Publication date: August 26, 2021
    Applicant: ABIOMED, Inc.
    Inventor: Christopher Nason Korkuch
  • EXPANDABLE SHEATH WITH INTERLOCK DILATOR
    Publication number: 20210236783
    Abstract: An expandable introducer sheath with an interlock dilator. The present technology provides an expandable sheath with a step feature inside its distal opening, and a dilator with an interlock that includes a catch surface that is configured to engage with the step feature of the expandable sheath. When the step feature engages the catch surface, it resists further relative movement so that the body of the dilator is prevented from exiting the distal end of the expandable sheath. The nature of the interlocking engagement between the step feature and the catch surface allows the dilator to be used to extend and maintain tension on the expandable sheath during insertion into a patient, and then to be retracted from the expandable sheath by simply pulling the dilator in the opposite direction.
    Type: Application
    Filed: February 2, 2021
    Publication date: August 5, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Christopher N. Korkuch, Robert Fishman, Michael Finnegan, Charles DeLorenzo, Andrew Gentile, Anne Gabrielle McLoughlin, Robert Swierczek
  • Peel away hemostasis valve
    Patent number: 11045634
    Abstract: A hemostasis valve body provides strong sealing around a medical device during insertion of the medical device into a blood vessel, low forces for tearing, and stability during insertion of the medical devices as well as during peel away. The valve body comprises a first surface, a second surface opposite the first surface, an edge, helical slits, and a pair of longitudinal cuts. The helical slits are positioned at a center of the valve body and traverse the first surface to the second surface. The helical slits provide a seal around the medical device. Each respective longitudinal cut extends from the first surface partially through the valve body to a depth short of the second surface for at least part of a length of the respective longitudinal cut. The longitudinal cuts facilitate a separation of the valve body into two parts during a peel away action.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 29, 2021
    Assignee: ABIOMED, INC.
    Inventors: Christopher Nason Korkuch, Glen R. Fantuzzi
  • Blood pump assembly having a sensor and a sensor shield
    Patent number: 11027114
    Abstract: A blood pump assembly can include various components such as a housing and a sensor configured to detect one or more characteristics of the blood. In some embodiments, the sensor can be coupled to the housing and can include a sensor membrane configured to deflect in response to a change in a blood parameter (e.g., pressure). The blood pump assembly can include a shield that covers at least a portion of the sensor membrane so as to protect the sensor from damage when the blood pump assembly is inserted through an introducer and navigated through the patient's vasculature and/or when the blood pump assembly is inserted into the heart in a surgical procedure. One or more protective layers can be deposited over the sensor membrane to prevent the sensor membrane from being dissolved through interactions with the patient's blood.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 8, 2021
    Assignee: ABIOMED, INC.
    Inventors: Ralph Louis D'Ambrosio, Bruce Adams, Michael Thomas Finnegan, Gerd Spanier, Thorsten Siess
  • PURGE-FREE MINIATURE ROTARY PUMP
    Publication number: 20210146116
    Abstract: Methods and systems are provided for the circulation of blood using a purge-free miniature pump. In one embodiment, a pump is provided that may comprise a housing including a rotor and a stator within a drive unit. In this embodiment, the pump may establish a primary blood flow through the space between the drive unit and the housing and a secondary blood flow between the rotor and stator. In another embodiment, a pump establishes a primary blood flow outside the housing and a secondary blood flow between the rotor and stator. In yet another embodiment, a method is provided for introducing the pump into the body and circulating blood using the pump.
    Type: Application
    Filed: November 30, 2020
    Publication date: May 20, 2021
    Applicant: ABIOMED, Inc.
    Inventor: Thorsten Siess
  • Guidewire for cannula placement
    Patent number: 11007350
    Abstract: A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: May 18, 2021
    Assignee: ABIOMED, INC.
    Inventors: Zhenghong Tao, Michael Thomas Finnegan
  • Expandable introducer sheath for medical device
    Patent number: 10967152
    Abstract: An expandable medical sheath can include a sheath body having a lumen that extends between proximal and distal ends of the sheath. The sheath can have first and second members where the first member has a different elastic modulus than the second member such that one provides elasticity to the sheath and the other provides column strength. The first and second members can be coupled together in alternating sections to form the tubular sheath or the stiffer members can be embedded in the elastic member along all or a portion of the longitudinal length of the sheath. The sheath can automatically move to an expanded state to allow a larger diameter medical device to pass through the lumen, and once through the sheath can automatically return to its initial diameter.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 6, 2021
    Assignee: Abiomed, Inc.
    Inventor: Christopher Nason Korkuch
  • MALLEABLE SHEATH BODY
    Publication number: 20210093353
    Abstract: A blood pump assembly includes an introducer sheath with a proximal end and a distal end, a pump body which extends within the introducer sheath, and a catheter that interfaces with the pump body and extends proximally though the introducer sheath. In a rest state, the introducer sheath forms an oval cross-section sized to encompass the catheter and a medical device. In a constrained state when the pump body is within the introducer sheath, the cross-section of the introducer sheath is circular. The malleability of the introducer sheath allows larger medical devices to be passed through the introducer sheath, while still allowing other devices to be inserted through the introducer sheath after the pump has been guided through. A perimeter of oval cross-section of the introducer sheath is equal to the perimeter of the circular cross-section of the introducer sheath.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Applicant: ABIOMED, Inc.
    Inventor: Christopher Nason Korkuch