Biopsy instrument driver apparatus
First Claim
1. A driver apparatus for use with a biopsy instrument which includes a plurality of relatively moveable elongated members, the driver apparatus comprising:
- a housing;
an insertion mechanism including a carriage moveably associated with the housing and being adapted to support the biopsy instrument to affect longitudinal movement of at least a portion of the biopsy instrument relative to the housing;
a linear motion control mechanism adapted to move a tissue cutting element of the biopsy instrument from a first position to a second position relative to a tissue receiving portion of the biopsy instrument wherein the tissue cutting element cuts tissue extending into the tissue receiving portion of the biopsy instrument; and
a tissue retract mechanism which facilitates removal of a tissue specimen from the biopsy instrument without removing the entire biopsy instrument from a surgical site, the tissue retract mechanism including a retention member adapted to moveably support a portion of the biopsy instrument that is operatively associated with the tissue receiving portion such that the tissue receiving portion is proximally moveable relative to the tissue cutting element for retrieving the tissue specimen from the surgical site.
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Accused Products
Abstract
A driver apparatus is provided for use with a biopsy instrument, the driver apparatus including a housing and an insertion mechanism including a carriage movably associated with the housing and adapted to support the biopsy instrument to affect longitudinal movement of at least a portion of the biopsy instrument. A linear motion control mechanism is also included that is adapted to move a tissue cutting element of the biopsy instrument from a first position to a second position relative to a tissue receiving portion of the biopsy instrument. Further, a tissue retract mechanism is included which facilitates removal of a tissue specimen from the biopsy instrument without removing the entire biopsy instrument from a surgical site.
531 Citations
24 Claims
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1. A driver apparatus for use with a biopsy instrument which includes a plurality of relatively moveable elongated members, the driver apparatus comprising:
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a housing;
an insertion mechanism including a carriage moveably associated with the housing and being adapted to support the biopsy instrument to affect longitudinal movement of at least a portion of the biopsy instrument relative to the housing;
a linear motion control mechanism adapted to move a tissue cutting element of the biopsy instrument from a first position to a second position relative to a tissue receiving portion of the biopsy instrument wherein the tissue cutting element cuts tissue extending into the tissue receiving portion of the biopsy instrument; and
a tissue retract mechanism which facilitates removal of a tissue specimen from the biopsy instrument without removing the entire biopsy instrument from a surgical site, the tissue retract mechanism including a retention member adapted to moveably support a portion of the biopsy instrument that is operatively associated with the tissue receiving portion such that the tissue receiving portion is proximally moveable relative to the tissue cutting element for retrieving the tissue specimen from the surgical site. - View Dependent Claims (3, 4, 5, 6, 7)
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2. A driver apparatus for use with a biopsy instrument which includes a tissue receiving portion and a tissue cutting element, the driver apparatus comprising:
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a housing;
an insertion mechanism adapted to support the biopsy instrument thereon, the insertion mechanism including a carriage moveably associated with the housing such that the carriage is moveable from a retracted position to an advanced position to affect longitudinal movement of the biopsy instrument; and
a cutting element controller assembly operatively disposed on the housing, the controller assembly including;
a linear motion control mechanism adapted to move [a] the tissue cutting element of the biopsy instrument from a first position to a second position relative to a tissue receiving portion of the biopsy instrument wherein the tissue cutting element cuts tissue extending into the tissue receiving portion of the biopsy instrument, the tissue receiving portion being proximally moveable relative to the tissue cutting element for retrieving a tissue sample from a tissue sample site, a motor operatively associated with the cutting element when the biopsy instrument is mounted on the driver apparatus such that the motor facilitates movement of the tissue cutting element relative to the tissue receiving portion, and an enabling switch disposed relative to the linear motion control mechanism and electrically connected to the motor such that movement of the tissue cutting element from the second position to the first position causes the enabling switch to activate the motor. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A biopsy system comprising:
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a biopsy instrument including a vacuum tube having a sharpened distal penetrating end and a tissue receiving portion adjacent the distal penetrating end, the biopsy instrument further including a knife tube rotatably disposed about the vacuum tube and configured to advance distally for severing a tissue sample from a tissue sample site;
a vacuum source communicating with the tissue receiving portion; and
a drive apparatus mounted with the biopsy instrument, the drive apparatus including;
a housing, an insertion mechanism adapted to support the biopsy instrument, the insertion mechanism including a carriage moveably associated with the housing such that the carriage is moveable to effect longitudinal movement of the biopsy instrument, and a linear motion control mechanism adapted to move a tissue cutting element of the knife tube from a first position to a second position relative to the tissue receiving portion of the vacuum tube wherein the tissue cutting element of the knife tube cuts tissue extending into the tissue receiving portion of the vacuum tube, the tissue receiving portion being proximally moveable relative to the tissue cutting element for retrieving the tissue sample from the tissue sample site. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification