Patents by Inventor Laksen Sirimanne

Laksen Sirimanne 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).

  • Patent number: 9986974
    Abstract: These are site marking devices for marking a selected site within tissue of a patient. More particularly, the devices include an elongated body of gel and a metallic band disposed at least partially surrounding the body of gel. The body of gel is recognizably artificial when the marker is subject to ultrasound or x-ray imaging. Therefore, it is readily distinguishable from biological features within the tissue site.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: June 5, 2018
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Patent number: 9669113
    Abstract: Cavity and sentinel lymph node marking devices, marker delivery devices, and methods are disclosed. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammography, echogenic, or other noninvasive imaging techniques. A composition and method are disclosed for locating the sentinel lymph node in a mammalian body to determine if cancerous cells have spread thereto. The composition is preferably a fluid composition consisting of a carrier fluid and some type of contrast agent; alternatively, the contrast agent may itself be a fluid and therefore not need a separate carrier fluid. This composition is capable of (1) deposition in or around a lesion and migration to and accumulation in the associated sentinel node, and (2) remote detection via any number of noninvasive techniques.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 6, 2017
    Assignee: DEVICOR MEDICAL PRODUCTS, INC.
    Inventors: D. Laksen Sirimanne, Natalie V. Fawzi, Douglas S. Sutton, Gail S. Lebovic, Stanley R. Conston, Peter M. Wilson, Anne B. Morrissey, Mary Elizabeth Bush
  • Patent number: 9492570
    Abstract: Cavity and sentinel lymph node marking devices, marker delivery devices, and methods are disclosed. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammography, echogenic, or other noninvasive imaging techniques. A composition and method are disclosed for locating the sentinel lymph node in a mammalian body to determine if cancerous cells have spread thereto. The composition is preferably a fluid composition consisting of a carrier fluid and some type of contrast agent; alternatively, the contrast agent may itself be a fluid and therefore not need a separate carrier fluid. This composition is capable of (1) deposition in or around a lesion and migration to and accumulation in the associated sentinel node, and (2) remote detection via any number of noninvasive techniques.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 15, 2016
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Natalie V. Fawzi, Douglas S. Sutton, Gail S. Lebovic, Stanley R. Conston, Peter M. Wilson, Anne B. Morrissey, Mary Elizabeth Bush
  • Patent number: 9380998
    Abstract: These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: July 5, 2016
    Assignee: DEVICOR MEDICAL PRODUCTS, INC.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Publication number: 20140194741
    Abstract: These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Application
    Filed: February 20, 2014
    Publication date: July 10, 2014
    Applicant: DEVICOR MEDICAL PRODUCTS, INC.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Publication number: 20140051996
    Abstract: These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicant: DEVICOR MEDICAL PRODUCTS, INC.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Patent number: 8600481
    Abstract: These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 3, 2013
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Publication number: 20130066195
    Abstract: A subcutaneous cavity marking device percutaneously implantable in breast tissue during a biopsy procedure. The marking device including at least two implantable bodies, one made from a first material and another made from a second material wherein the first and second materials are different materials and the at least two implantable bodies are adapted to be inserted into a subcutaneous cavity created by removal of tissue. The at least two implantable bodies are detectable via non-invasive techniques as tissue cavity markers and at least one of the at least two detectable bodies is an electronic chip connected to the other of the at least two implantable bodies.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 14, 2013
    Inventors: D. Laksen SIRIMANNE, Natalie V. FAWZI, Douglas S. SUTTON, Gail S. LEBOVIC, Stanley R. CONSTON, Peter M. WISLON, Anne B. MORRISSEY, Mary Elizabeth BUSH
  • Patent number: 8320993
    Abstract: These are subcutaneous cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a bioabsorbable or non-bioabsorbable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a subcutaneous cavity using a bioabsorbable material and a bioabsorbable or non-bioabsorbable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: November 27, 2012
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Patent number: 8320994
    Abstract: These are biopsy cavity marking devices and methods. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the biopsy cavity by radiographic, mammographic, echogenic, or other non-invasive imaging techniques. Also, the device contains a detectable marker. The device may be combined with various substances enhancing the radiopaque, mammographic, or echogenic characteristics of the marker or the body allowing it to be observed by any non-invasive imaging techniques. This is further a method of marking a biopsy cavity using a bioabsorbable material and a detectable marker in conjunction with the material. The method also may combine any of the features as described with the device.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: November 27, 2012
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Patent number: 8306602
    Abstract: These are site marking devices for marking a selected site within tissue of a patient. More particularly, the devices include an elongated body of gel and a metallic band disposed at least partially surrounding the body of gel. The body of gel is recognizably artificial when the marker is subject to ultrasound or x-ray imaging. Therefore, it is readily distinguishable from biological features within the tissue site.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 6, 2012
    Assignee: Devicor Medical Products, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Publication number: 20100234726
    Abstract: Cavity and sentinel lymph node marking 412 devices, marker delivery devices, and methods are disclosed. More particularly, upon insertion into a body, the cavity marking device and method enable one to determine the center, orientation, and periphery of the cavity by radiographic, mammography, echogenic, or other noninvasive imaging techniques. A composition and method are disclosed for locating the sentinel lymph node in a mammalian body to determine if cancerous cells have spread thereto. The composition is preferably a fluid composition consisting of a carrier fluid and some type of contrast agent; alternatively, the contrast agent may itself be a fluid and therefore not need a separate carrier fluid. This composition is capable of (1) deposition in or around a lesion and migration to and accumulation in the associated sentinel node, and (2) remote detection via any number of noninvasive techniques.
    Type: Application
    Filed: May 11, 2010
    Publication date: September 16, 2010
    Inventors: D. Laksen Sirimanne, Natalie V. Fawzi, Douglas S. Sutton, Gail S. Lebovic, Stanley R. Conston, Peter M. Wilson, Anne B. Morrissey, Mary Elizabeth Bush
  • Patent number: 7668582
    Abstract: These are biopsy site marking devices. More particularly, the devices include a body of gelatin and an x-ray detectable body of a specific, predetermined non-biological configuration embedded in the body of gelatin. In one embodiment, the x-ray detectable body is made from metal. In alternative embodiments, the x-ray detectable body can be made from stainless steel or metal oxides.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: February 23, 2010
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: D. Laksen Sirimanne, Douglas S. Sutton, Natalie V. Fawzi, Gail Lebovic
  • Patent number: 7491163
    Abstract: A multilumen catheter that maximizes the blood flow into and out of the patient's vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: February 17, 2009
    Assignee: Orqis Medical Corporation
    Inventors: Anthony Viole, Laksen Sirimanne, Steven F. Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai
  • Publication number: 20080275290
    Abstract: An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient's vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient's heart, thereby potentially reducing the afterload of the heart.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 6, 2008
    Inventors: Anthony Viole, Laksen Sirimanne, Steven F. Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai
  • Patent number: 7331921
    Abstract: An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient's vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient's heart, thereby potentially reducing the afterload of the heart.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: February 19, 2008
    Assignee: Orqis Medical Corporation
    Inventors: Anthony Viole, Laksen Sirimanne, Steven F. Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai
  • Publication number: 20060270891
    Abstract: A multilumen catheter that maximizes the blood flow into and out of the patient's vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end. Lumens extending from the proximal end to each of these distal ends provide for blood circulation within one or between two blood vessels. At least one aperture in one of the lumens positioned near the proximal end provides for active perfusion of blood to the patient's vasculature downstream of where the aperture resides in the vasculature when the catheter is inserted into the patient for treatment. The inventive catheter may comprise a third lumen positioned entirely within the patient's vasculature, providing passive perfusion of blood to the patient's vasculature downstream of where the third lumen resides in the vasculature when the catheter is inserted into the patient for treatment.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 30, 2006
    Inventors: Anthony Viole, Laksen Sirimanne, Steven Bolling, Shawn O'Leary, Wolfgang Werner
  • Publication number: 20060270965
    Abstract: A multilumen catheter that maximizes the blood flow into and out of the patient's vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 30, 2006
    Inventors: Anthony Viole, Laksen Sirimanne, Steven Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai
  • Publication number: 20060270890
    Abstract: A multilumen catheter that maximizes the blood flow into and out of the patient's vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises-a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 30, 2006
    Inventors: Anthony Viole, Laksen Sirimanne, Steven Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai
  • Publication number: 20060270964
    Abstract: A multilumen catheter that maximizes the blood flow into and out of the patient's vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 30, 2006
    Inventors: Anthony Viole, Laksen Sirimanne, Steven Bolling, Shawn O'Leary, Robert Pecor, Ryan Kelly, Wolfgang Werner, Masoud Beizai