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US 6,551,253 B2Granted
Incisional breast biopsy device
AssigneeImagyn Medical Technologies, Inc.
InventorsDustin Worm, Martin Flatland, Mark Tomandl, Mark A. Penrod, Warren D. Lun
Life of this patent
Estimating the term…
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.
Claims10
A biopsy device, comprising:
- cannula having a shaft;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a localization needle disposed within the central passage;
- a drive mechanism for simultaneously rotating said cannula and moving said cannula in a direction parallel to a longitudinal axis of said cannula;
- a garrote coupled to the cannula and being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger for deploying said garrote and for preventing deployment of said garrote prior to movement of said cannula a predetermined distance;
- and,
- a spring mounted around said drive mechanism for applying resistance against said garrote.
5 more elements
A biopsy device, comprising:
- cannula having a shaft and a cutting ring;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a localization needle disposed within the central passage;
- a drive mechanism for simultaneously rotating said cannula and moving said cannula in a direction parallel to a longitudinal axis of said cannula;
- a garrote coupled to-the cannula adjacent the cutting ring and being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger for deploying said garrote and for preventing deployment of said garrote prior to movement of said cannula a predetermined distance;
- and,
- a pair of disk blades mounted to the cannula.
5 more elements
A biopsy device, comprising:
- a cannula having a shaft and a cutting ring;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a localization needle disposed within the central passage;
- a drive mechanism for simultaneously rotating said cannula and moving said cannula in a direction parallel to a longitudinal axis of said cannula;
- a garrote coupled to the cannula adjacent the cutting ring and being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger for deploying said garrote and for preventing deployment of said garrote prior to movement of said cannula a predetermined distance;
- and,
- a distal disk blade and a proximal disk blade, the proximal disk blade containing a notch for receiving said garrote as the garrote exits the cannula to form a cutting surface.
5 more elements
A biopsy device, comprising:
- a cannula having a shaft;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a localization needle disposed within the central passage;
- a drive mechanism for simultaneously rotating said cannula and moving said cannula in a direction parallel to a longitudinal axis of said cannula;
- a garrote coupled to the cannula and being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger for deploying said garrote and for preventing deployment of said garrote prior to movement of said cannula a predetermined distance;
- a localization needle having a guide wire mounted within said needle, wherein the trigger includes a locking mechanism for preventing deployment of the garrote until a cutting plane of the garrote is beyond an end of said guide wire.
4 more elements
A biopsy device, comprising:
- a cannula having a shaft;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a localization needle disposed within the central passage;
- a drive mechanism for simultaneously rotating said cannula and moving said cannula in a direction parallel to a longitudinal axis of said cannula;
- a garrote coupled to the cannula and being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger for deploying said garrote and for preventing deployment of said garrote prior to movement of said cannula a predetermined distance;
- a trigger plunger coupled to the trigger, one end of the garrote being connected to the trigger plunger;
- and
- a spring plunger coupled to the trigger plunger via a spring, another end of the garrote being connected to the spring plunger.
6 more elements
A biopsy device, comprising:
- a cannula having a shaft and at least one disk blade mounted within the shaft;
- a retractable stylet having a tip containing at least one blade and a central passage;
- a drive mechanism for advancing the cannula in a direction parallel to a longitudinal axis of the cannula;
- a garrote coupled to the cannula, the garrote and the disk blade being adapted to perform a cut traverse to said longitudinal axis of said cannula;
- a trigger plunger connected to one end of the garrote;
- and, a spring plunger coupled to the trigger plunger via a spring, another end of the garrote being connected to the spring plunger.
3 more elements
Dependencies are inferred from the claim text.