Patents by Inventor Maura G. Donovan

Maura G. Donovan 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: 20040039417
    Abstract: This invention is an electrical stimulation apparatus for delivering an electrical field or electrical current over a predetermined period of time to a vascular tissue (150) in order to stimulate a cell initiated thrombolytic peptide response in cells within the vascular tissue. The electrical stimulation apparatus includes an electrical field or electrical current generating unit including a power support, a control mechanism interconnected with the power supply, and a plurality of electrodes designed to generate an electrical field or electrical current proximal to, or within to the vascular tissue. The amplitude of the electrical field or electrical current delivered to or generated proximal to, or within the vascular tissue, and the duration of the period of delivery are sufficient to stimulate production of thrombolytic peptides in the vascular tissue.
    Type: Application
    Filed: April 15, 2003
    Publication date: February 26, 2004
    Applicant: Medtronic, Inc.
    Inventors: Orhan Soykan, Maura G. Donovan, Curtis D. Deno, Terrell M. Williams, Paul V. Trescony, Timothy H. Robinson
  • Patent number: 6671558
    Abstract: An implantable system is provided that includes: a cell repopulation source comprising genetic material, undifferentiated and/or differentiated contractile cells, or a combination thereof capable of forming new contractile tissue in and/or near an infarct zone of a patient's myocardium; and an electrical stimulation device for electrically stimulating the new contractile tissue in and/or near the infarct zone of the patient's myocardium or otherwise damaged or diseased myocardial tissue.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: December 30, 2003
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Maura G. Donovan
  • Publication number: 20030204206
    Abstract: The present invention provides methods and systems for regulating delivery of therapeutic proteins and nucleic acids.
    Type: Application
    Filed: December 20, 2001
    Publication date: October 30, 2003
    Applicant: Medtronic, Inc.
    Inventors: Rodolfo A. Padua, Carl A. Schu, Matthew D. Bonner, Maura G. Donovan, Orhan Soykan
  • Publication number: 20020138123
    Abstract: A medical electrical lead or indwelling catheter comprising an elongated body having a tissue-contacting surface that includes a polymer in intimate contact with a steroidal anti-inflammatory agent.
    Type: Application
    Filed: November 28, 2001
    Publication date: September 26, 2002
    Applicant: Medtronic, Inc.
    Inventors: Jesus W. Casas-Bejar, Darrel F. Untereker, Maura G. Donovan, Zhao Qinghong, Brian C.A. Fernandes, Timothy H. Robinson, Peter T. Schroeder
  • Publication number: 20020010492
    Abstract: The present invention provides a novel stimulatory device for the controlled production of angiogenic growth factors. More specifically, the present invention provides a subthreshold pulse generator for the local production of vascular endothelial growth factor.
    Type: Application
    Filed: March 5, 2001
    Publication date: January 24, 2002
    Applicant: Medtronic, Inc.
    Inventors: Maura G. Donovan, Orhan Soykan, D. Curtis Deno, Lawrence J. Mulligan, Brian C. A. Fernandes
  • Patent number: 6238429
    Abstract: A length of living conductive cells may be injected directly or may be grown to be attached to a fibrous matrix of material that provides for flexible structure so as to deliver a stimulation signal from one end of the biologic cable to the other to induce a physiologic reaction in body tissue.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: May 29, 2001
    Assignee: Medtronic, Inc.
    Inventors: H. Toby Markowitz, Maura G. Donovan, Khawar Mehdi
  • Patent number: 6228845
    Abstract: This invention relates to an intraluminal stent having a lumen-wall contacting surface and a lumen-exposed surface wherein the stent comprises a first polymer composition comprising fibrin and wherein the stent is suitable to deliver virus to the wall of a lumen of the body. The invention also relates to methods for making the stent and to methods for delivering nucleic acid to cells accessible from a wall of a body lumen.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: May 8, 2001
    Assignee: Medtronic, Inc.
    Inventors: Maura G. Donovan, Paul M. Stein
  • Publication number: 20010000802
    Abstract: An implantable system that includes a carrier and eukaryotic cells, which produce and release a therapeutic agent, and a stimulating element for stimulating the release of the therapeutic agent. The system can also include a sensing element for monitoring a physiological condition and triggering the stimulating element to stimulate the delivery device to release the therapeutic agent. Alternatively, the patient in which the system is implanted can activate the stimulating element to release the therapeutic agent.
    Type: Application
    Filed: December 20, 2000
    Publication date: May 3, 2001
    Applicant: Medtronic, Inc.
    Inventors: Orhan Soykan, Maura G. Donovan
  • Patent number: 6206914
    Abstract: An implantable system that includes a carrier and eukaryotic cells, which produce and release a therapeutic agent, and a stimulating element for stimulating the release of the therapeutic agent. The system can also include a sensing element for monitoring a physiological condition and triggering the stimulating element to stimulate the delivery device to release the therapeutic agent. Alternatively, the patient in which the system is implanted can activate the stimulating element to release the therapeutic agent.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: March 27, 2001
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Maura G. Donovan
  • Patent number: 6151525
    Abstract: An implantable system is provided that includes: a cell repopulation source comprising genetic material, undifferentiated contractile cells, or a combination thereof capable of forming new contractile tissue in and/or near an infarct zone of a patient's myocardium; and an electrical stimulation device for electrically stimulating the new contractile tissue in and/or near the infarct zone of the patient's myocardium.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: November 21, 2000
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Maura G. Donovan
  • Patent number: 5897590
    Abstract: A dissection glove for forming in a patient a tissue pocket to receive an implantable device. The dissection glove is constructed of an absorbent material formed into at least one recess with an open end for receiving a portion of a surgeon's gloved hand. A retaining mechanism is provided for releasably retaining the dissection glove to a portion of the surgeon's gloved hand. An extraction mechanism is optionally provided for extracting the dissection glove from the tissue pocket. The dissection glove may be constructed from a variety of materials, such as polypropylene nonwoven mesh or calcium alginate gauze. The present invention is also directed to a method of forming a tissue pocket in a patient for receiving an implantable device using the present dissection glove.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: April 27, 1999
    Assignee: Medtronic, Inc.
    Inventor: Maura G. Donovan
  • Patent number: 5848987
    Abstract: A catheter having a microtextured exterior surface portion is employed to deliver fluids such as medicaments internally to the parenchyma of an organ or other internal living bodily tissue. The microtextured exterior surface portion promotes cellular tissue ingrowth into the textured surface, thereby creating an effective fluid seal in the bore formed in the tissue and inhibiting the body's rejection response to the catheter. The fluid seal prevents the reflux of infused fluid from the distal end of the catheter from the bore opening and permits controlled delivery of fluid to affected tissue.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: December 15, 1998
    Assignee: Medtronic, Inc.
    Inventors: Michael D. Baudino, Mark T. Rise, Maura G. Donovan
  • Patent number: 5833651
    Abstract: This invention relates to an intraluminal stent having a lumen-wall contacting surface and a lumen-exposed surface wherein the stent comprises a first polymer composition comprising fibrin and wherein the stent is suitable to deliver virus to the wall of a lumen of the body. The invention also relates to methods for making the stent and to methods for delivering nucleic acid to cells accessible from a wall of a body lumen.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 10, 1998
    Assignee: Medtronic, Inc.
    Inventors: Maura G. Donovan, Paul M. Stein
  • Patent number: 5766248
    Abstract: A dissection glove for forming in a patient a tissue pocket to receive an implantable device. The dissection glove is constructed of an absorbent material formed into at least one recess with an open end for receiving a portion of a surgeon's gloved hand. A retaining mechanism is provided for releasably retaining the dissection glove to a portion of the surgeon's gloved hand. An extraction mechanism is optionally provided for extracting the dissection glove from the tissue pocket. The dissection glove may be constructed from a variety of materials, such as polypropylene nonwoven mesh or calcium alginate gauze. The present invention is also directed to a method of forming a tissue pocket in a patient for receiving an implantable device using the present dissection glove.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: June 16, 1998
    Assignee: Medtronic, Inc.
    Inventor: Maura G. Donovan
  • Patent number: 5695777
    Abstract: A wound dressing for use with exuding wounds includes (a) an outer vapor permeable layer permitting transpiration of fluid from the dressing; (b) an intermediate layer of hydrogel adapted for absorbing wound exudate; (c) a wound-contacting layer for separating the intermediate hydrogel layer from the wound; (d) wicking means associated with the wound-contacting layer for conducting exudate from the wound to the hydrogel; and (e) a therapeutic agent retained in the dressing by the wound-contacting layer.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: December 9, 1997
    Assignee: Medtronic, Inc.
    Inventors: Maura G. Donovan, James R. Keogh, Carolann M. Holmblad
  • Patent number: 5356372
    Abstract: An occlusive, pressure-reducing wound dressing with a multi-layer laminate construction providing one easy-to-apply dressing. The occlusive pressure-reducing dressing includes an occlusive, wound-contacting layer made of a biologically compatible polymer. A pressure-reducing layer is joined at a bottom surface to the occlusive layer. The pressure-reducing layer is comprised of a soft, air-containing material such as a foam or an air-entrapping film which has a top surface shaped to provide a progressive rate of resistance to compressive force applied to the pressure-reducing layer and which allows the pressure-reducing layer to conform to curved body surfaces. The occlusive portion of the dressing therefore provides a moist environment and a barrier against infection while the pressure-reducing portion or component minimizes interaction between the wound and any supporing surface in contact therewith.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: October 18, 1994
    Assignee: Ludlow Corporation
    Inventors: Maura G. Donovan, Matthew A. Bergan