Patents by Inventor Rajan Ramaswamy

Rajan Ramaswamy 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: 20230019172
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Application
    Filed: September 27, 2022
    Publication date: January 19, 2023
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin L. Bokelman, John C. Love
  • Patent number: 11484644
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 1, 2022
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin Bokelman, John C. Love
  • Publication number: 20220218900
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor (G-CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device may include a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector may define a sterile fluid flowpath between the container and the insertion mechanism. Optionally, a cannula initially disposed about the needle may be included. The cannula may be retained in the patient at an injection site created by the needle after the needle is withdrawn from the patient. Methods of assembly and operation are also provided.
    Type: Application
    Filed: March 7, 2022
    Publication date: July 14, 2022
    Inventors: Scott R. Gibson, Sheldon B, Moberg, Basel Hasan Taha, Margaux Frances Boyaval, Mark A. Destefano, John C. Love, Ian B. Hanson, Paul F. Bente, IV, Matthew J. Clemente, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Sean M. O'connor, Robert Decker, Gautam N. Shetty, Ryan M. Agard, Nicholas J. Ciccarelli, Daniel Davenport
  • Patent number: 11266777
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor (G-CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device may include a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector may define a sterile fluid flowpath between the container and the insertion mechanism. Optionally, a cannula initially disposed about the needle may be included. The cannula may be retained in the patient at an injection site created by the needle after the needle is withdrawn from the patient. Methods of assembly and operation are also provided.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: March 8, 2022
    Assignee: AMGEN INC.
    Inventors: Scott R. Gibson, Sheldon B. Moberg, Basel Hasan Taha, Margaux Frances Boyaval, Mark A. Destefano, John C. Love, Ian B. Hanson, Paul F. Bente, IV, Matthew J. Clemente, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Sean M. O'connor, Robert Decker, Gautam N. Shetty, Ryan M. Agard, Nicholas J. Ciccarelli, Daniel Davenport
  • Publication number: 20210402083
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor (G-CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device may include a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector may define a sterile fluid flowpath between the container and the insertion mechanism. Optionally, a cannula initially disposed about the needle may be included. The cannula may be retained in the patient at an injection site created by the needle after the needle is withdrawn from the patient. Methods of assembly and operation are also provided.
    Type: Application
    Filed: July 28, 2021
    Publication date: December 30, 2021
    Inventors: Scott R. Gibson, Sheldon B. Moberg, Basel Hasan Taha, Margaux Frances Boyaval, Mark A. Destefano, Lawton Laurence, John C. Love, Ian B. Hanson, Paul F. Bente, IV, Matthew J. Clemente, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Ian P. Dardani, Sean M. O'connor, Danielle Feldman
  • Patent number: 11129936
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device includes a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector defines a sterile fluid flowpath between the container and the insertion mechanism. A cannula initially disposed about the needle is included.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 28, 2021
    Assignee: AMGEN INC.
    Inventors: Scott R. Gibson, Sheldon B. Moberg, Basel Hasan Taha, Margaux Frances Boyaval, Mark A. Destefano, Lawton Laurence, John C. Love, Ian B. Hanson, Paul F. Bente, IV, Matthew J. Clemente, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Ian P. Dardani, Sean M. O'connor, Danielle Feldman
  • Publication number: 20200316291
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device includes a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector defines a sterile fluid flowpath between the container and the insertion mechanism. A cannula initially disposed about the needle is included.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 8, 2020
    Inventors: Scott Robert Gibson, Sheldon B. Moberg, Basel Hasan Taha, Margaux Frances Boyaval, Mark A. Destefano, Lawton Laurence, John C. Love, Ian B. Hanson, Paul F. Bente, IV, Matthew J. Clemente, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Ian P. Dardani, Sean M. O'connor, Danielle Feldman
  • Publication number: 20200155759
    Abstract: The present invention provides devices and methods for establishing aseptic connections between two or more components or subassemblies. The devices may be used in medical devices such as drug delivery pumps (10). In some embodiments, a connection is made between a drug container (50, 1050, 2050) and a fluid pathway connection assembly (300, 1300, 2300). The fluid pathway connection assembly may include a connection hub (312, 1312, 2312), a piercing member (316, 1316, 2316), and a piercing member retainer (314, 1314, 2314). The assembly may further include a first film (318, 1318, 2318) covering a cavity (312A, 1312A, 2312A), thereby maintaining the aseptic condition of the cavity. The drug container may hold a fluid drug and include a pierceable seal (326, 1326, 2326). A second film (322, 1322, 2322) may cover a recess (328, 1328, 2328) formed by the seal and thereby maintain the aseptic condition of the interior of the chamber.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Ian B. Hanson, Lawton Laurence, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Danielle Feldman, Matthew J. Clemente
  • Patent number: 10569014
    Abstract: The present invention provides devices and methods for establishing aseptic connections between two or more components or subassemblies. The devices may be used in medical devices such as drug delivery pumps (10). In some embodiments, a connection is made between a drug container (50, 1050, 2050) and a fluid pathway connection assembly (300, 1300, 2300). The fluid pathway connection assembly may include a connection hub (312, 1312, 2312), a piercing member (316, 1316, 2316), and a piercing member retainer (314, 1314, 2314). The assembly may further include a first film (318, 1318, 2318) covering a cavity (312A, 1312A, 2312A), thereby maintaining the aseptic condition of the cavity. The drug container may hold a fluid drug and include a pierceable seal (326, 1326, 2326). A second film (322, 1322, 2322) may cover a recess (328, 1328, 2328) formed by the seal and thereby maintain the aseptic condition of the interior of the chamber.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 25, 2020
    Assignee: AMGEN INC.
    Inventors: Ian B. Hanson, Lawton Laurence, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Danielle Feldman, Matthew J. Clemente
  • Publication number: 20190358394
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 28, 2019
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin Bokelman, John C. Love
  • Patent number: 10369274
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 6, 2019
    Assignee: UNL Holdings LLC
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin L. Bokelman, John C. Love
  • Patent number: 10350922
    Abstract: A print bar assembly includes: a mounting frame having a pair of opposite first and second sidewalls extending parallel to a media feed direction, the first sidewall having an upwardly extending first guide slot defined between opposite first bearing surfaces; a print bar carriage slidably received within the mounting frame and an actuation mechanism operatively connected to the print bar carriage for lifting and lowering the print bar carriage relative to the mounting frame. The print bar carriage includes a chassis, a printhead and a pair of first bearings rotatably received in the first guide slot. During sliding movement of the print bar carriage, the pair of first bearings travel within the first guide slot and bear against the first bearing surfaces to constrain rotational movement of the print bar carriage.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 16, 2019
    Assignee: MEMJET TECHNOLOGY LIMITED
    Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
  • Patent number: 10232652
    Abstract: A method of wiping a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path, each printhead having a respective wiper associated therewith. The wipers for neighboring printheads are moved in opposite directions with respect to each other.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 19, 2019
    Assignee: Memjet Technology Limited
    Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
  • Publication number: 20190022306
    Abstract: Disclosed herein is a wearable drug delivery device including a container filled at least partially with a drug including at least one of a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) specific antibody, a granulocyte colony-stimulating factor (G-CSF), a sclerostin antibody, or a calcitonin gene-related peptide (CGRP) antibody. The wearable drug delivery device may include a needle and an insertion mechanism configured to insert the needle into a patient. A fluid pathway connector may define a sterile fluid flowpath between the container and the insertion mechanism. Optionally, a cannula initially disposed about the needle may be included. The cannula may be retained in the patient at an injection site created by the needle after the needle is withdrawn from the patient. Methods of assembly and operation are also provided.
    Type: Application
    Filed: February 13, 2017
    Publication date: January 24, 2019
    Applicant: Amgen Inc.
    Inventors: Scott R. GIBSON, Sheldon B. MOBERG, Basel Hasan TAHA, Margaux Frances BOYAVAL, Mark A. DESTEFANO, John C. LOVE, Ian B. HANSON, Paul F. BENTE, IV, Matthew J. CLEMENTE, Rajan RAMASWAMY, Daniel S. CODD, Scott BEAVER, Kevin L. BOKELMAN, Sean M. O'CONNOR, Robert DECKER, Gautam N. SHETTY, Ryan M. AGARD, Nicholas J. CICCARELLI, Daniel DAVENPORT
  • Publication number: 20180170060
    Abstract: A print bar assembly includes: a mounting frame having a pair of opposite first and second sidewalls extending parallel to a media feed direction, the first sidewall having an upwardly extending first guide slot defined between opposite first bearing surfaces; a print bar carriage slidably received within the mounting frame and an actuation mechanism operatively connected to the print bar carriage for lifting and lowering the print bar carriage relative to the mounting frame. The print bar carriage includes a chassis, a printhead and a pair of first bearings rotatably received in the first guide slot. During sliding movement of the print bar carriage, the pair of first bearings travel within the first guide slot and bear against the first bearing surfaces to constrain rotational movement of the print bar carriage.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
  • Patent number: 9925780
    Abstract: A method of capping a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path. Each printhead has a respective capper. The method includes the steps of: moving the cappers towards respective printheads in a direction parallel to a media feed direction; and lowering the printheads onto their respective cappers. The cappers for neighboring printheads are moved in opposite directions towards their respective printheads.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: March 27, 2018
    Assignee: Memjet Technology Limited
    Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
  • Publication number: 20180028747
    Abstract: The present invention provides devices and methods for establishing aseptic connections between two or more components or subassemblies. The devices may be used in medical devices such as drug delivery pumps (10). In some embodiments, a connection is made between a drug container (50, 1050, 2050) and a fluid pathway connection assembly (300, 1300, 2300). The fluid pathway connection assembly may include a connection hub (312, 1312, 2312), a piercing member (316, 1316, 2316), and a piercing member retainer (314, 1314, 2314). The assembly may further include a first film (318, 1318, 2318) covering a cavity (312A, 1312A, 2312A), thereby maintaining the aseptic condition of the cavity. The drug container may hold a fluid drug and include a pierceable seal (326, 1326, 2326). A second film (322, 1322, 2322) may cover a recess (328, 1328, 2328) formed by the seal and thereby maintain the aseptic condition of the interior of the chamber.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 1, 2018
    Inventors: Ian B. Hanson, Lawton Laurence, Antonio Ubach, Rajan Ramaswamy, Daniel S. Codd, Scott Beaver, Kevin L. Bokelman, Danielle Feldman, Matthew J. Clemente
  • Publication number: 20180008769
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 11, 2018
    Applicant: Unitract Syringe PTY LTD
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin L. Bokelman, John C. Love
  • Publication number: 20170282567
    Abstract: A method of wiping a plurality of printheads positioned in a staggered overlapping arrangement across a width of a media feed path, each printhead having a respective wiper associated therewith. The wipers for neighboring printheads are moved in opposite directions with respect to each other.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Applicant: MEMJET TECHNOLOGY LIMITED
    Inventors: Alejandro Campillo, Rajan Ramaswamy, Tinh Tran, David Lovelace
  • Patent number: 9707337
    Abstract: A user-initiated fluid pathway connection includes: a connection hub, a piercing member, a sterile sleeve, and a drug container having a cap, a pierceable seal, a barrel, and a plunger seal, wherein the piercing member is initially retained within the sterile sleeve between the connection hub and the pierceable seal of the drug container. The connection hub may include an internal aperture within the connection hub which functions as a flow restrictor and wherein a piercing member is connected to one end of the internal aperture and a fluid conduit is connected to another end of the internal aperture. A drug delivery pump with integrated sterility maintenance features includes a housing, upon which an activation mechanism, an insertion mechanism, a fluid pathway connection as described above, a power and control system, and a drive mechanism connected to a drug container are mounted. Methods of assembly and operation are also provided.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 18, 2017
    Assignee: Unitract Syringe PTY LTD
    Inventors: Sean M. O'Connor, Ian B. Hanson, Paul F. Bente, IV, Rajan Ramaswamy, Daniel S. Codd, Scott W. Beaver, Kevin L. Bokelman, John C. Love