Surgical device for the collection of soft tissue
DCFirst Claim
1. A biopsy device for the collection and retrieval of at least one soft tissue portion from a surgical patient, said biopsy device comprising:
- a. a handpiece configured for grasping by a single hand, said handpiece having a distal end and a proximal end, said handpiece being independently manipulatable by the single hand without an external support for movement of said biopsy device toward and away from the surgical patient;
b. an elongated piercer extending from the distal end of said handpiece, said piercer having i. a piercer lumen, ii. a sharpened distal end for entering tissue when said handpiece of said biopsy device is moved independently by the single hand toward the surgical patient so as to cause said sharpened distal end to penetrate the tissue, and iii. a port located proximal to said sharpened distal end for receiving a portion of a tissue mass when said handpiece is further manipulated independently by the single hand so as to position the tissue mass adjacent to said port, said piercer lumen being in fluid communication with said port;
c. an elongated cutter having a distal end, a proximal end, and a cutter lumen therethrough, said cutter being disposed coaxially and slidably relative to said piercer, said cutter having a cutting blade on the cutter distal end for cutting the portion of tissue protruding into said port of said piercer when said cutter slides distally past said port, thereby depositing the portion of cut tissue within said cutter lumen of said cutter proximal to said cutting blade;
d. a cutter rotational transmission contained within said handpiece and operationally connected to said elongated cutter, and when said cutter rotational transmission is actuated, said cutter is rotated about its longitudinal axis;
e. a cutter axial transmission contained within said handpiece and operationally connected to said elongated cutter, and when said cutter axial transmission is actuated, said cutter is slid in an axial direction relative to said piercer; and
f. a power transmission source connected to the proximal end of said handpiece and operationally engageable with;
i. said cutter rotational transmission for actuating said cutter rotational transmission, and ii. said cutter axial transmission for actuating said cutter axial transmission.
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Accused Products
Abstract
A handheld biopsy device is provided for the collection of soft tissue samples from a surgical patient. In a preferred embodiment, the biopsy device comprises a handpiece, a fluid collection system, and a power transmission source. The handpiece is configured for grasping by a single hand, and being independently manipulatable by hand for movement of the instrument toward and away from the patient. An elongated piercer extends from the distal end of the handpiece. The piercer has a sharpened distal end for entering the tissue and a port located proximal to the sharpened distal end for receiving a portion of tissue mass. An elongated cutter is disposed coaxially relative to a piercer lumen of the piercer. A distal blade of the cutter slides distally past the port of the piercer to severe the tissue portion drawn into the port by vacuum. The cutter is retracted to a most proximal position for removal of the tissue portion from a cutter lumen of the cutter. The handpiece further comprises a holster for detachably connecting a cutter rotational transmission and a cutter axial transmission to the power transmission source.
636 Citations
12 Claims
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1. A biopsy device for the collection and retrieval of at least one soft tissue portion from a surgical patient, said biopsy device comprising:
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a. a handpiece configured for grasping by a single hand, said handpiece having a distal end and a proximal end, said handpiece being independently manipulatable by the single hand without an external support for movement of said biopsy device toward and away from the surgical patient;
b. an elongated piercer extending from the distal end of said handpiece, said piercer having i. a piercer lumen, ii. a sharpened distal end for entering tissue when said handpiece of said biopsy device is moved independently by the single hand toward the surgical patient so as to cause said sharpened distal end to penetrate the tissue, and iii. a port located proximal to said sharpened distal end for receiving a portion of a tissue mass when said handpiece is further manipulated independently by the single hand so as to position the tissue mass adjacent to said port, said piercer lumen being in fluid communication with said port;
c. an elongated cutter having a distal end, a proximal end, and a cutter lumen therethrough, said cutter being disposed coaxially and slidably relative to said piercer, said cutter having a cutting blade on the cutter distal end for cutting the portion of tissue protruding into said port of said piercer when said cutter slides distally past said port, thereby depositing the portion of cut tissue within said cutter lumen of said cutter proximal to said cutting blade;
d. a cutter rotational transmission contained within said handpiece and operationally connected to said elongated cutter, and when said cutter rotational transmission is actuated, said cutter is rotated about its longitudinal axis;
e. a cutter axial transmission contained within said handpiece and operationally connected to said elongated cutter, and when said cutter axial transmission is actuated, said cutter is slid in an axial direction relative to said piercer; and
f. a power transmission source connected to the proximal end of said handpiece and operationally engageable with;
i. said cutter rotational transmission for actuating said cutter rotational transmission, and ii. said cutter axial transmission for actuating said cutter axial transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification