Patents Assigned to Microvena Corporation
  • Publication number: 20040102807
    Abstract: The present invention provides a method of deploying a medical filter within a channel in a patient's body and filter systems which can be used in such a method. Such a filter may include a radially expandable body 52 having an opening 56 in a proximal length thereof. In one method, the filter is urged along a length of the channel with the filter body in a radially reduced configuration. This body is expanded to substantially fill the lumen of the vessel and orient the opening in the body proximally. Body fluid is permitted to enter the filter body through the proximally oriented opening and pass distally through the distal length of the body so that the distal length of the body filters from the body fluid particulate material entrained therein. The proximal length of the body can be drawn into the retrieval catheter, thereby effectively closing the proximally oriented opening within the catheter to retain the particulate material within the enclosure.
    Type: Application
    Filed: October 9, 2003
    Publication date: May 27, 2004
    Applicant: Microvena Corporation
    Inventors: Richard S. Kusleika, Brian V. Finander
  • Publication number: 20030195530
    Abstract: A septal defect occluder is provided having first and second occluder panels. Each occluder panel includes a fabric support structure and fabric suspended therefrom. The occluder panels are conjoined at a plurality of discrete points which are located within an area bounded by each perimeter of the fabric support structures, as well as on the fabric, to thereby form a defect conforming region for the occluder. In an alternate embodiment, each occluder panel includes a cambered fabric support structure and fabric suspended from a perimeter thereof, the occluder panels being arranged in cooperative cambered opposition such that the perimeters of the cambered fabric support structures impart a clamping force upon tissue adjacent a tissue defect interposed there between when the occluder is deployed for tissue defect occlusion.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 16, 2003
    Applicant: MICROVENA CORPORATION, A MINNESOTA CORPORATION, AND INTO EV3 INC., A DELAWARE CORPORA
    Inventor: Gary A. Thill
  • Publication number: 20030109824
    Abstract: The present invention provides for a drug delivery mechanism for use with a protection device. The protection device has an expandable filter. The drug delivery mechanism automatically delivers a drug to the filter without requiring the intervention of the operator of the protection device. The drug delivered to the filter facilitates continued filter patency during the medical procedure.
    Type: Application
    Filed: November 7, 2002
    Publication date: June 12, 2003
    Applicant: Microvena Corporation
    Inventors: Kent D. Anderson, Richard S. Kusleika, Jennifer L. Pavlovic, Chad J. Volk, Gary A. Thill, Jeannine B. Baden
  • Publication number: 20030088211
    Abstract: The present invention provides for a local drug delivery mechanism for use with a protection device. An infusing device is used to charge the drug into the catheter lumen toward a distal portion of the lumen having a plurality of drug delivery exit ports. The drug exits the ports into the patient's vascular system and is able to flow toward a filter maintaining the patency of the filter.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 8, 2003
    Applicant: Microvena Corporation
    Inventors: Kent D. Anderson, Jennifer L. Pavlovic, Sivaprasad Sukavaneshvar
  • Publication number: 20030028213
    Abstract: A tissue opening occluder comprising first and second occluder portions, each occluder portion including a frame structure and an attachment structure to attach one portion to the other portion. The frames may be utilized to constrain the tissue between the two portions enough to restrict the significant passage of blood therethrough. The frame portions may be covered by a fabric suspended from a perimeter thereof. The occluder portions are conjoined at least one point on each portion.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 6, 2003
    Applicant: Microvena Corporation
    Inventors: Gary A. Thill, Michelle M. Young, Jana F. Oman, Paul R. Barratt
  • Publication number: 20020198563
    Abstract: A release assembly is provided to aid the reversible and repositionable deployment of a defect occluder. The release assembly includes an occluder tether having a distal portion comprising at least one suture loop, and a snare structure having a distal portion comprising a snare element. The at least one suture loop is receivable through at least a portion of the defect occluder, and reversibly looped over an anchor element so as to permit reversible collapse the defect occluder for selective ingress and egress from a delivery catheter. The snare element is reversibly engageable with the anchor element so as to reversibly retain the at least one suture loop upon the anchor element, and thereby hold the defect occluder in a posture for reversible free-floating tethered deployment in a defect while being observable in a final position prior to release.
    Type: Application
    Filed: August 26, 2002
    Publication date: December 26, 2002
    Applicant: Microvena Corporation
    Inventors: John P. Gainor, Brian L. Dukart, Darren L. Wegner
  • Publication number: 20020188314
    Abstract: The present invention is a radiopaque distal embolic protection device for use in a lumen of a patient's body, such as a blood vessel. The protection device has an expandable and retractable filter attached to a distal portion of a guidewire. At least a portion of the filter has a radiopaque coating for viewing under fluoroscopy during use. The radiopaque coating allows the operator to ensure that the periphery of the filter has fully engaged the wall of a blood vessel and to take appropriate measures in recovery of the protection device after capture of emboli and particulate matter.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 12, 2002
    Applicant: Microvena Corporation
    Inventors: Kent D. Anderson, Jeannine B. Baden, Kelly J. Huettl, Richard S. Kusleika
  • Publication number: 20020169474
    Abstract: The present invention provides a medical device retrieval system comprising a working element carried by a flexible, elongate shaft, the working element having a proximal profile and the shaft extending proximally from the working element and a retrieval cover slidably carried along the shaft of the medical device, the cover having a deployed configuration and being capable of being compressed into a compressed configuration for deployment, yet resiliendy substantially return to the deployed configuration; the cover in its deployed configuration having a radially reduced proximal portion, a distally open distal end defining a distal opening having a maximum dimension at least as great as the maximum dimension of the proximal profile of the working element of the medical device, and an elongate internal recess defined between the proximal portion and the distal end.
    Type: Application
    Filed: June 27, 2002
    Publication date: November 14, 2002
    Applicant: Microvena Corporation
    Inventors: Richard S. Kusleika, Duy Nguyen, Kent D. Anderson
  • Publication number: 20020138095
    Abstract: The present invention provides a method of forming a medical device and medical devices which can be formed in accordance with the method. In one embodiment, the method includes the steps of a) providing a metal fabric formed of a plurality of strands formed of a metal which can be heat treated to substantially set a desired shape; b) deforming the metal fabric to generally conform to a surface of a molding element; c) heat treating the metal fabric in contact with the surface of the molding element to substantially set the shape of the fabric in its deformed state; and d) removing the metal fabric from contact with the molding element. The resulting metal fabric will define a medical device which can be collapsed for passage through a catheter or the like for deployment in a channel of a patient's body. Medical devices made in accordance with this method can have varying structures.
    Type: Application
    Filed: January 30, 2002
    Publication date: September 26, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Publication number: 20020133192
    Abstract: The present invention provides a method of deploying a medical filter within a channel in a patient's body and filter systems which can be used in such a method. Such a filter may include a radially expandable body 52 having an opening 56 in a proximal length thereof. In one method, the filter is urged along a length of the channel with the filter body in a radially reduced configuration. This body is expanded to substantially fill the lumen of the vessel and orient the opening in the body proximally. Body fluid is permitted to enter the filter body through the proximally oriented opening and pass distally through the distal length of the body so that the distal length of the body filters from the body fluid particulate material entrained therein. The proximal length of the body can be drawn into the retrieval catheter, thereby effectively closing the proximally oriented opening within the catheter to retain the particulate material within the enclosure.
    Type: Application
    Filed: January 30, 2002
    Publication date: September 19, 2002
    Applicant: Microvena Corporation
    Inventors: Richard S. Kusleika, Brian V. Finander
  • Publication number: 20020133092
    Abstract: Apparatus for use in deploying medical devices. The apparatus includes a wire having a diameter such that the wire can appropriately be used with either a corresponding over-the-wire configured catheter or a rapid-exchange configured catheter. The wire has a location at which it can be easily fractured, when desired, in order to convert the length of the wire from a length for use in an over-the-wire configuration to a rapid-exchange configuration.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 19, 2002
    Applicant: Microvena Corporation
    Inventors: John C. Oslund, Patrick P. Russo
  • Patent number: 6440152
    Abstract: A release assembly is provided to aid the reversible and repositionable deployment of a defect occluder. The release assembly includes an occluder tether having a distal portion comprising at least one suture loop, and a snare structure having a distal portion comprising a snare element. The at least one suture loop is receivable through at least a portion of the defect occluder, and reversibly looped over an anchor element so as to permit reversible collapse the defect occluder for selective ingress and egress from a delivery catheter. The snare element is reversibly engageable with the anchor element so as to reversibly retain the at least one suture loop upon the anchor element, and thereby hold the defect occluder in a posture for reversible free-floating tethered deployment in a defect while being observable in a final position prior to release.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: August 27, 2002
    Assignee: Microvena Corporation
    Inventors: John P. Gainor, Brian L. Dukart, Darren L. Wegner
  • Publication number: 20020111649
    Abstract: A distal tip for use with a medical catheter. The tip includes a member having a wall which defines a lumen therewithin. The wall has a portion at a distal end thereof, the portion curving inwardly toward an axis of the lumen. The lumen is provided with a diameter adaptable to accommodate a device to be recovered therewithin.
    Type: Application
    Filed: February 12, 2002
    Publication date: August 15, 2002
    Applicant: Microvena Corporation
    Inventors: Patrick P. Russo, John C. Oslund
  • Publication number: 20020095172
    Abstract: Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 18, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Publication number: 20020095173
    Abstract: Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 18, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Publication number: 20020087187
    Abstract: Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 4, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Publication number: 20020072765
    Abstract: Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
    Type: Application
    Filed: January 16, 2002
    Publication date: June 13, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Publication number: 20020062135
    Abstract: Medical devices for filtering fluids flowing through a lumen and a method of forming medical devices. The devices can be used in vascular channels, urinary tracts, biliary ducts and the like, and filter emboli and other debris generated at a treatment site.
    Type: Application
    Filed: January 18, 2002
    Publication date: May 23, 2002
    Applicant: Microvena Corporation
    Inventors: Rudy Mazzocchi, Timothy Claude, James Segermark
  • Patent number: 6325815
    Abstract: Filter systems and a method of deploying a medical filter within a channel in a patient's body, the filter systems include a filter having a radially expandable body with an opening in a proximal length thereof. The filter is urged along a length of the channel with the filter body in a radially reduced configuration. The filter body is expanded to substantially fill the lumen of the vessel and orient the opening in the body proximally. Body fluid is permitted to enter the filter body through the proximally oriented opening and pass distally through the distal length of the body so that the distal length of the body filters from the body fluid particulate material entrained therein. The proximal length of the body can be drawn into the retrieval catheter, thereby effectively closing the proximally oriented opening within the catheter to retain the particulate material within the enclosure.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: December 4, 2001
    Assignee: Microvena Corporation
    Inventors: Richard S. Kusleika, Brian V. Finander
  • Publication number: 20010037129
    Abstract: A septal defect occluder is provided having first and second occluder panels. Each occluder panel includes a fabric support structure and fabric suspended therefrom. The occluder panels are conjoined at a plurality of discrete points which are located within an area bounded by each perimeter of the fabric support structures, as well as on the fabric, to thereby form a defect conforming region for the occluder. In an alternate embodiment, each occluder panel includes a cambered fabric support structure and fabric suspended from a perimeter thereof, the occluder panels being arranged in cooperative cambered opposition such that the perimeters of the cambered fabric support structures impart a clamping force upon tissue adjacent a tissue defect interposed there between when the occluder is deployed for tissue defect occlusion.
    Type: Application
    Filed: January 12, 2001
    Publication date: November 1, 2001
    Applicant: Microvena Corporation
    Inventor: Gary A. Thill