Boston Scientific Scimed, Inc.

Scimed Life Systems, Inc.

Srinivas Nishtalas

Tim E Ward

Stephane Gobron

Jim Bates

James S Bates

An embodiment of the invention includes a device for collecting body tissue. The device may include an inner member comprising a hollow portion to collect body tissue and a distal end configured to both penetrate body tissue and define an opening of the hollow portion. The device may further include an outer member, co-axially and slidably disposed around the exterior of the inner member, comprising a distal end portion. The distal end portion of the outer member may be configured to penetrate body tissue, prevent body tissue from exiting the hollow portion of the inner member, and allow the distal end of the inner member to extend beyond the distal end of outer member. The opening of the hollow portion of the inner member may be disposed in a plane that is not perpendicular to the longitudinal axis of the inner member.

Endoscopic submucosal core biopsy device

An embodiment of the invention includes a device for collecting body tissue. The device includes an inner end effector comprising a hollow portion, a distal edge that defines an opening of the hollow portion at least a portion of which is sufficiently sharpened to cut body tissue, and a proximal end configured to receive an inner tubular member. The device also includes an outer end effector comprising a flexible extension on a distal end with an edge at least a portion of which is sufficiently sharpened to cut body tissue and biased inwardly toward the hollow portion of the inner end effector to cover the opening, and a proximal end configured to receive an outer tubular member. The inner end effector is slidably disposed within the outer end effector.

An instrument for collecting body tissue includes a tubular cutting member having an exterior surface, a proximal end, and a distal end capable of penetrating body tissue; and a flexible cutting extension coaxially and slidably disposed around the exterior surface of the cutting member, the flexible cutting extensions having a proximal end and distal end capable of cutting tissue located at the distal end of the cutting member and covering the distal end of the cutting member so that tissue that has entered the cutting member is retained in the cutting member. A first tubular member may be connected to the cutting member, and a second tubular member maybe connected to the cutting extension, the second tubular member being coaxially disposed on the first tubular member. A handle mechanism may be connected to the first and second tubular members, the handle mechanism allowing relative movement between the first and second tubular members such that the flexible cutting extension may be extended beyond the distal end of the cutting member.

An instrument for collecting body tissue includes a tubular cutting member having an exterior surface, a proximal end, and a distal end capable of penetrating body tissue; and a flexible cutting extension coaxially and slidably disposed around the exterior surface of the cutting member, the flexible cutting extensions having a proximal end and distal end capable of cutting tissue located at the distal end of the cutting member and covering the distal end of the cutting member so that tissue that has entered the cutting member is retained in the cutting member. A first tubular member may be connected to the cutting member, and a second tubular member mayb connected to the cutting extension, the second tubular member being coaxially disposed on the first tubular member. A handle mechanism may be connected to the first and second tubular members, the handle mechanism allowing relative movement between the first and second tubular members such that the flexible cutting extension may be extended beyond the distal end of the cutting member.

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Burlington, MA, United States of America

Srinivas Nishtalas