Excisional biopsy devices and methods
First Claim
1. An excisional biopsy device, comprising:
- a tubular member having a window near a distal tip thereof;
a cutting tool, a distal end of the cutting tool being attached near the distal tip of the tubular member, at least a distal portion of the cutting tool being configured to selectively bow out of the window and to retract within the window; and
a tissue collection device externally attached at least to the tubular member, the tissue collection device collecting tissue severed by the cutting tool as the biopsy device is rotated and the cutting tool is bowed.
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Accused Products
Abstract
An excisional biopsy device includes a tubular member having a window near a distal tip thereof; a cutting tool, a distal end of the cutting tool being attached near the distal tip of the tubular member, at least a distal portion of the cutting tool being configured to selectively bow out of the window and to retract within the window; and a tissue collection device externally attached at least to the tubular member, the tissue collection device collecting tissue excised by the cutting tool as the biopsy device is rotated and the cutting tool is bowed. An excisional biopsy method for soft tissue includes the steps of inserting a generally tubular member into the tissue, the tubular member including a cutting tool adapted to selectively bow away from the tubular member and an external tissue collection device near a distal tip of the tubular member; rotating the tubular member; selectively varying a degree of bowing of the cutting tool; collecting tissue severed by the cutting tool in the tissue collection device; and retracting the tubular member from the soft tissue. The tubular member may include an imaging transducer and the method may include the step of displaying information received from the transducer on a display device and the step of varying the degree of bowing of the cutting tool based upon the displayed information from the imaging transducer. Alternatively, the imaging transducer may be disposed within a removable transducer core adapted to fit within the tubular member.
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Citations
49 Claims
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1. An excisional biopsy device, comprising:
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a tubular member having a window near a distal tip thereof;
a cutting tool, a distal end of the cutting tool being attached near the distal tip of the tubular member, at least a distal portion of the cutting tool being configured to selectively bow out of the window and to retract within the window; and
a tissue collection device externally attached at least to the tubular member, the tissue collection device collecting tissue severed by the cutting tool as the biopsy device is rotated and the cutting tool is bowed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An invasive interventional device for soft biological tissue, comprising:
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a rotatable tubular member having a distal tip adapted to penetrate the tissue;
a work element disposed near the distal tip of the tubular member, the work element acting upon the tissue coming into contact therewith as the tubular member rotates;
an ultrasound transducer disposed near the distal tip of the tubular member and away from the work element, so that the transducer sweeps a plane within the tissue ahead of the work element as the tubular member rotates; and
means for controlling an operation of the work element based upon information gathered from the ultrasound transducer. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. An excisional biopsy method for soft tissue, comprising the steps of:
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inserting a generally tubular member into the tissue, the tubular member including a cutting tool adapted to selectively bow away from the tubular member and an external tissue collection device near a distal tip of the tubular member;
rotating the tubular member;
selectively varying a degree of bowing of the cutting tool;
collecting tissue severed by the cutting tool in the tissue collection device; and
retracting the tubular member from the soft tissue. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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32. An imaging and treatment method for soft tissue, comprising the steps of:
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inserting a tubular member into the soft tissue, the tubular member including an ultrasonic transducer mounted near a distal end of the tubular member;
rotating the tubular member within the soft tissue;
displaying an output of the ultrasonic transducer on a display device; and
acting upon the soft tissue based upon the displayed output. - View Dependent Claims (33, 34, 35)
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36. An excisional biopsy device, comprising:
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a tubular member having a first and a second window near a distal tip thereof;
a cutting tool configured to selectively bow out of the first window and to retract within the first window; and
a removable transducer core, the transducer core including an active transducer element configured to face out of the second window when the removable transducer core is fitted within the tubular member. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. Method of excising a lesion from soft biological tissue using an excisional biopsy system including a generally tubular member having a cutting tool, a removable transducer core adapted to fit within the tubular member and an expandable sheath, comprising the steps of:
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fitting the transducer core through the expandable sheath, inserting the transducer and sheath though an incision in the tissue;
imaging a target site within the tissue by energizing the transducer core, removing the transducer core from sheath while leaving the sheath in place within the tissue;
securing the core within the generally tubular member so the core faces outwardly from the tubular member;
sliding the tubular member through the expandable sheath until the cutting tool is positioned adjacent the lesion;
cutting the lesion with the cutting tool; and
retracting at least the tubular member from the incision. - View Dependent Claims (44, 45, 46, 47)
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48. An excisional biopsy device, comprising:
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a single use disposable tubular member having a window near a distal tip thereof, the tubular member including a cutting tool, a distal end of the cutting tool being attached near the distal tip of the tubular member, at least a distal portion of the cutting tool being configured to selectively bow out of the window and to retract within the window; and
a single use disposable tissue collection device externally attached at least to the tubular member, the tissue collection device collecting tissue severed by the cutting tool as the biopsy device is rotated and the cutting tool is bowed.
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49. An excisional biopsy device, comprising:
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a single use disposable tubular member having a first and a second window near a distal tip thereof, the tubular member including a cutting tool configured to selectively bow out of the first window and to retract within the first window; and
a removable transducer core, the transducer core including an active transducer element configured to face out of the second window when the removable transducer core is fitted within the tubular member.
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Specification