DEVICES AND METHODS FOR CUTTING TISSUE
2 Assignments
0 Petitions
Accused Products
Abstract
Various medical devices and methods for cutting, evacuating and/or performing work on tissue are provided. The devices and methods may utilize a reciprocating mechanism or motor powered by suction from a vacuum source. The medical devices and methods may be used on tissue in various regions of a patient'"'"'s body and for treating various conditions, e.g., for performing a polypectomy.
24 Citations
44 Claims
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1-15. -15. (canceled)
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16. A tissue cutting device comprising:
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an elongate shaft having a proximal portion, a distal portion and a lumen defined therein, wherein the distal portion includes an opening for receiving tissue; wherein the distal portion includes at least a section which is configured to be manipulated into a first configuration by hand without the use of a separate tool prior to inserting the distal portion of the elongate shaft into a patient'"'"'s body, wherein the elongate shaft is configured to retain the manipulated first configuration of the distal portion, wherein the manipulated distal portion is configured to be hand adjusted into a second configuration, wherein the elongate shaft is configured to retain the manipulated second configuration of the distal portion, such that the elongate shaft can access a variety of anatomical locations during a procedure; a cutting mechanism positioned within the distal portion of the elongate shaft, wherein the cutting mechanism is configured to be actuated within the distal portion of the elongate shaft and past the opening to cut tissue in the opening, and wherein manipulation of the distal portion causes manipulation of the cutting mechanism and the opening; and a chamber coupled to the proximal portion of the elongate shaft, the chamber having a cutting mechanism driver assembly positioned therein. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A tissue cutting device comprising:
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an elongate shaft having a proximal portion, a distal portion and a lumen defined therein, wherein the distal portion includes an opening for receiving tissue; wherein the distal portion includes at least a section which is configured to be manipulated into one or more configurations by hand without the use of a separate tool prior to inserting the distal portion of the elongate shaft into a patient'"'"'s body, wherein the elongate shaft is configured to retain a manipulated configuration of the distal portion; a cutting mechanism positioned within the distal portion of the elongate shaft, wherein the cutting mechanism is configured to be actuated within the distal portion of the elongate shaft and past the opening to cut tissue in the opening, and wherein manipulation of the distal portion causes manipulation of the cutting mechanism and the opening; an evacuation shaft positioned in the elongate shaft and having an evacuation lumen which is in fluid communication with the opening in the elongate shaft for evacuating and removing cut tissue through the opening; an irrigant lumen, wherein the irrigant lumen is configured to deliver irrigant to a distal portion of the evacuation lumen, wherein the irrigant does not flow through the irrigant lumen unless suction from a vacuum source is present to draw the irrigant through the irrigant lumen; and a chamber coupled to the proximal portion of the elongate shaft, the chamber having a cutting mechanism driver assembly positioned therein. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification