Patents by Inventor Warren D. Lun

Warren D. Lun 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).

  • Incisional breast biopsy device
    Patent number: 6551253
    Abstract: A biopsy device is provided which includes a localization needle having a guide wire preloaded into the biopsy device. The device includes a stylet having a blade for transecting and separating tissue. The device further includes a cannula for cutting a core of tissue and a garrote wire mechanism for cutting a transection of tissue transverse to the core cut by the cannula. The garrote wire is activated by a trigger mechanism which is locked out by a lockout feature within the device until the garrote wire has been advanced around the core of tissue cut by the cannula.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 22, 2003
    Assignee: Imagyn Medical Technologies
    Inventors: Dustin Worm, Martin Flatland, Mark Tomandl, Mark A. Penrod, Warren D. Lun
  • Incisional breast biopsy device
    Patent number: 6383145
    Abstract: A biopsy device is provided which includes a localization needle having a guide wire preloaded into the biopsy device. The device includes a stylet having a blade for transecting and separating tissue. The device further includes a cannula for cutting a core of tissue and a garrote wire mechanism for cutting a transection of tissue transverse to the core cut by the cannula. The garrote wire is activated by a trigger mechanism which is locked out by a lockout feature within the device until the garrote wire has been advanced around the core of tissue cut by the cannula.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: May 7, 2002
    Assignee: Imagyn Medical Technologies California, Inc.
    Inventors: Dustin Worm, Martin Flatland, Mark Tomandl, Mark A. Penrod, Warren D. Lun
  • Incisional breast biopsy device
    Publication number: 20010014778
    Abstract: A biopsy device is provided which includes a localization needle having a guide wire preloaded into the biopsy device. The device includes a stylet having a blade for transecting and separating tissue. The device further includes a cannula for cutting a core of tissue and a garrote wire mechanism for cutting a transection of tissue transverse to the core cut by the cannula. The garrote wire is activated by a trigger mechanism which is locked out by a lockout feature within the device until the garrote wire has been advanced around the core of tissue cut by the cannula.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 16, 2001
    Inventors: Dustin Worm, Martin Flatland, Mark Tomandl, Mark A. Penrod, Warren D. Lun
  • Incisional breast biopsy device
    Patent number: 6267732
    Abstract: A breast biopsy device is provided which includes a localization needle having a guide wire preloaded into the biopsy device. The device includes a stylet having a blade for transecting and separating healthy tissue on route to the biopsy site. The use of the stylet blade reduces the trauma to healthy breast tissue. The device further includes a cannula blade and a garrote for forming a cut transverse to the core cut by the cannula blade. A lockout feature prevents the garrote from deploying until after a cutting plane of the garrote has been advanced beyond the end of the guide wire.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: July 31, 2001
    Assignee: Imagyn Medical Technologies, Inc.
    Inventors: Scott Heneveld, Mark Zyzelewski, Warren D. Lun, Mark A. Penrod
  • Incisional breast biopsy device
    Patent number: 6080113
    Abstract: A breast biopsy device is provided which includes a localization needle having a guide wire preloaded into the biopsy device. The device includes a stylet having a blade for transecting and separating healthy tissue on route to the biopsy site. The use of the stylet blade reduces the trauma to healthy breast tissue. The device further includes a cannula blade and a garrote for forming a cut transverse to the core cut by the cannula blade. A lockout feature prevents the garrote from deploying until after a cutting plane of the garrote has been advanced beyond the end of the guide wire.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: June 27, 2000
    Assignee: Imagyn Medical Technologies California, Inc.
    Inventors: Scott Heneveld, Mark Zyzelewski, Warren D. Lun, Mark A. Penrod
  • Introducer needle and catheter assembly
    Patent number: 5342325
    Abstract: A catheter assembly for the sterile introduction of a catheter into a body cavity is disclosed. The catheter assembly comprises a catheter, a stylet received within the catheter and a needle selectively mounted on one end of the catheter. Gripping means are incorporated on one or more of the stylet, needle or catheter to selectively mount the needle to the catheter.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: August 30, 1994
    Assignee: DLP, Incorporated
    Inventors: Warren D. Lun, Paul F. Rom, William M. Booth
  • Needle stop and safety sheath
    Patent number: 5217438
    Abstract: A needle stop for a biopsy needle or the like in the form of a spring having coils in firm engagement with the surface of the shaft of the needle. Ends of the spring may be pinched to enlarge the coils and permit movement of the stop along the shaft. A guard tube is associated with the stop for covering the point of the needle when not in use.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: June 8, 1993
    Assignee: DLP, Inc.
    Inventors: Richard E. Davis, Warren D. Lun