Tissue sampling and removal apparatus and method
First Claim
Patent Images
1. A tissue removal device for selectively removing one or more tissue portions from a medical patient, the device comprising:
- a housing;
a cutter rotatably and axially slidably mounted within the housing, the cutter includes an elongated hollow tube having a distal end defining a cutting edge;
a needle slidably disposed within the cutter, the needle includes a piercing tip and defines a tissue receiving section adjacent the piercing tip, the needle being configured to deliver suction to the tissue receiving section to draw a portion of tissue therein, wherein the cutter selectively severs the portion of tissue while it is held in the tissue receiving section; and
a single drive cable operatively attached at one end to the housing, wherein the drive cable moves the cutter causing the cutter to sever the portion of tissue and selectively moves the needle relative to the housing.
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Accused Products
Abstract
A tissue sampling device (10) for retrieving one or more tissue samples from a patient is either handheld or mounted to a moveable carriage (184) and advanced so that the needle tip (152) is introduced into the patient. The needle tip (152) is advanced until the tissue receiving basket (154) reaches the tissue sample target zone (190). Vacuum pressure is supplied to the basket (154) via a vacuum tube (144) so that tissue to be sampled is drawn into the basket (154). The cutter (42) is rotated and advanced linearly to cut a tissue sample (212) which is then retrieved by retracting the needle (40).
397 Citations
20 Claims
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1. A tissue removal device for selectively removing one or more tissue portions from a medical patient, the device comprising:
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a housing; a cutter rotatably and axially slidably mounted within the housing, the cutter includes an elongated hollow tube having a distal end defining a cutting edge; a needle slidably disposed within the cutter, the needle includes a piercing tip and defines a tissue receiving section adjacent the piercing tip, the needle being configured to deliver suction to the tissue receiving section to draw a portion of tissue therein, wherein the cutter selectively severs the portion of tissue while it is held in the tissue receiving section; and a single drive cable operatively attached at one end to the housing, wherein the drive cable moves the cutter causing the cutter to sever the portion of tissue and selectively moves the needle relative to the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A tissue removal device for selectively removing one or more tissue portions from a medical patient, the device comprising:
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a housing; a cutter rotatably and axially slidably mounted within the housing, the cutter includes an elongated hollow tube having a distal end defining a cutting edge; a needle slidably disposed within the cutter, the needle includes a piercing tip and defines a tissue receiving section adjacent the piercing tip, the needle being configured to deliver suction to the tissue receiving section to draw a portion of tissue therein, wherein the cutter selectively severs the portion of tissue while it is held in the tissue receiving section; a single drive cable operatively attached at one end to the housing, wherein the drive cable moves the cutter causing the cutter to sever the portion of tissue and selectively moves the needle relative to the housing; and a vacuum tube telescopically disposed within the needle, the vacuum tube having a proximal end attachable to a vacuum conduit for transmitting a vacuum from a vacuum source. - View Dependent Claims (14)
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15. A tissue removal device for selectively removing one or more tissue portions from a medical patient, the device comprising:
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a housing; a cutter rotatably and slidably supported on the housing and extending from a distal end thereof, the cutter including a hollow tube defining a distal cutting edge and a tissue sample retrieval window formed near a proximal end thereof; a needle telescopically disposed within the hollow tube of the cutter, the needle including a piercing tip formed at a distal end thereof and a tissue receiving section formed adjacent the piercing tip, the needle is configured to deliver suction to the tissue receiving section to draw a portion of tissue therein, wherein the cutter selectively severs the portion of tissue while it is held in the tissue receiving section, wherein the needle and cutter are movable relative to one another between a position wherein the tissue sample retrieval window of the cutter is in registration with the tissue receiving section of the needle, and at least one other position wherein the tissue sample retrieval window of the cutter is out of registration with the tissue receiving section of the needle; and a drive cable operatively attached at one end to the housing, wherein the drive cable moves the cutter causing the cutter to axially slide and rotate relative to the needle in order to sever the portion of tissue and to selectively axially move the needle relative to the housing to align the tissue receiving section of the needle with the tissue sample retrieval window of the cutter. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification