System and method for bracketing and removing tissue
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Accused Products
Abstract
A system and method for bracketing a tissue volume (22) and later locating the bracketed tissue volume. The system includes a plurality of markers (30) and a probe (32) and detector (34) for use in locating the markers by providing information usable by a surgeon that is representative of changes in proximity between the probe and the plurality of markers. The markers have various detection characteristics, e.g., they transmit gamma rays, that are detectable by an associated probe and detector. The tissue volume is removed by manipulating a cutting tool based on the proximity information provided by the detector which can be used by the surgeon to define the boundary of the tissue volume. A two-part cutting tool (200) is provided for removing the tissue volume, and a tissue anchor (300) is provided for stabilizing the tissue during removal. The system and method of the invention are particularly useful in bracketing and then removing a tissue volume from amorphous, pliable tissue such as breast tissue.
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Citations
77 Claims
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1-64. -64. (canceled)
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65. A system for locating a target volume in a patient, comprising:
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a first active marker that generates a detectable energy in response to an excitation energy, the first active marker having a body without external lead wires projecting therefrom, and wherein the body comprises a biocompatible capsule having a section with a diameter of 1-2 mm;
a second active marker that generates a detectable energy in response to an excitation energy, and wherein the second active marker is positionable relative to the first active marker; and
a detector configured to receive the detectable energy generated by the first and second active markers. - View Dependent Claims (66, 67, 68)
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69. A system for locating a target volume in a patient, comprising:
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at least one marker defining a discrete element configured to be implanted and remain in the patient at a single location relative to the target volume, and wherein the at least one marker comprises an active marker that emits a detectable energy in response to an excitation energy and has a body without external lead wires projecting outwardly from the body, and wherein the body comprises a biocompatible capsule having a section with a diameter of 1-2 mm;
a probe having a device that generates a location signal in response to the detectable energy generated by the active marker; and
a detector configured to receive the location signal from the probe, the detector providing an indication of the position of the probe relative to the at least one marker. - View Dependent Claims (70, 71, 72, 73)
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74. A system for locating a target volume in a patient, comprising:
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a plurality of markers including (a) a first active marker defining a discrete implantable element, wherein the first active marker generates a first detectable energy in response to a magnetic excitation energy, and wherein the first active marker has a first body comprising a first biocompatible capsule having a section with a diameter of 1-2 mm that is configured to fit in a standard implanter needle for implantation in the patient; and
(b) a second active marker positionable relative to the first active marker, wherein the second active marker generates a second detectable energy different than the first detectable energy in response to another magnetic excitation energy, and wherein the second active marker has a second body comprising a second biocompatible capsule having a cylindrical section with a diameter of 1-2 mm; and
a detector comprising a sensor configured to distinguish the first detectable energy generated by the first active marker from the second detectable energy generated by the second active marker.
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75. A system for locating a target volume in a patient, comprising:
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a first active marker that generates a detectable energy in response to an excitation energy, the first active marker having a body without external lead wires projecting outwardly from the body, and wherein the body comprises a biocompatible capsule having a section with a diameter of 1-2 mm;
a second active marker that generates a detectable energy in response to an excitation energy, and wherein the second active marker is positionable relative to the first active marker; and
a sensor configured to distinguish the first and second detectable energies generated by the first and second active markers. - View Dependent Claims (76)
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77. A system for locating a target volume in a patient, comprising:
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a first active marker that generates a detectable energy in response to a magnetic excitation energy, the first active marker having a body without external lead wires projecting outwardly from the body, and wherein the body comprises a biocompatible capsule having a section with a diameter of 1-2 mm;
a second active marker that generates a detectable energy in response to another magnetic excitation energy, and wherein the second active marker is positionable relative to the first active marker; and
a sensor configured to distinguish the first and second detectable energies generated by the first and second active markers.
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Specification