Biopsy anchor device with cutter
First Claim
1. A system for accessing target tissue within a patient and isolating a body of target tissue from its supporting bed, comprisinga. a biopsy device having a wand with a proximal portion and a distal portion, a housing on the proximal portion, an electrosurgical tissue cutting electrode secured to the distal portion of the wand, a first electrical conductor extending within the wand having a distal end electrically connected to the electrosurgical electrode and a proximal end configured to be electrically connected to an electrical power source, at least one deployable tissue contacting element connected to said distal wand portion and at least one driving member within the housing configured to move at least one deployable tissue contacting element of the biopsy device;
- b. a replaceable drive unit having a receptacle for engaging and releasably holding at least a portion of the housing on the proximal portion of the wand, and a driving element configured to engage the at least one driving member within the housing configured to transfer mechanical power to said biopsy device; and
d. a motor unit for engaging and providing power to the driving element of the drive unit, comprising a securing mechanism effective to form a mechanically stable engagement between said motor unit and said drive element of the driving unit to transfer mechanical power therebetween.
1 Assignment
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Accused Products
Abstract
A device for accessing and for isolating a desired site within a patient'"'"'s body, and for obtaining a body of tissue from a patient at the site that includes an electrosurgical cutting electrode near the distal tip of a shaft, an anchoring mechanism and an electrosurgical side-cutting device. Methods are provided for accessing a target site within a patient'"'"'s body, anchoring a body of tissue at the site, and isolating the body of tissue at the site. The method may be performed for a surgical biopsy or lumpectomy at the target site within a patient'"'"'s body.
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Citations
27 Claims
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1. A system for accessing target tissue within a patient and isolating a body of target tissue from its supporting bed, comprising
a. a biopsy device having a wand with a proximal portion and a distal portion, a housing on the proximal portion, an electrosurgical tissue cutting electrode secured to the distal portion of the wand, a first electrical conductor extending within the wand having a distal end electrically connected to the electrosurgical electrode and a proximal end configured to be electrically connected to an electrical power source, at least one deployable tissue contacting element connected to said distal wand portion and at least one driving member within the housing configured to move at least one deployable tissue contacting element of the biopsy device; -
b. a replaceable drive unit having a receptacle for engaging and releasably holding at least a portion of the housing on the proximal portion of the wand, and a driving element configured to engage the at least one driving member within the housing configured to transfer mechanical power to said biopsy device; and d. a motor unit for engaging and providing power to the driving element of the drive unit, comprising a securing mechanism effective to form a mechanically stable engagement between said motor unit and said drive element of the driving unit to transfer mechanical power therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for severing a tissue body within a patient from supporting tissue, comprising:
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a. a tissue severing unit having an elongated wand with a tissue cutting element on a distal portion of the wand, an additional operative element on the distal portion of the wand and a housing on a proximal portion of the wand and moving elements within the housing for moving the tissue cutting element and the additional operative element; b. a replaceable drive unit having a recess for receiving at least a portion of the housing of the tissue severing unit and having driving elements for engaging moving elements within the housing of the tissue severing unit to operate the tissue cutting element and the additional operative element on the distal portion of the wand; and c. a motor unit having a motor, a mechanical connector configured to transfer mechanical power from the motor to the driving elements of the drive unit to operate the tissue severing element and to operate the additional operative element of the tissue severing unit. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification