Multi-Wire Tissue Cutter
First Claim
Patent Images
1. A device for cutting tissue in a human body, the device comprising:
- an elongate shaft having a proximal portion and a distal portion;
at least one translatable blade disposed along one side of the distal portion of the shaft, wherein the blade has a height greater than a height of a portion of the shaft immediately below the blade, and wherein a total height of the blade and the portion of the shaft immediately below the blade is less than a width of the portion of the shaft immediately below the blade; and
at least one actuator coupled with the at least one translatable blade and extending to the proximal portion of the shaft, wherein the actuator is configured to translate the blade to cut tissue.
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Abstract
A device for cutting tissue in a human body may include an elongate shaft having a proximal portion and a distal portion, at least one translatable blade disposed along one side of the distal portion of the shaft, and at least one actuator coupled with the at least one translatable blade and extending to the proximal portion of the shaft, wherein the actuator is configured to translate the blade to cut tissue. In various embodiments, various components of the device may have dimensions that facilitate passing a portion of the device into or through a small space and also facilitate and/or enhance the device'"'"'s tissue cutting abilies.
367 Citations
23 Claims
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1. A device for cutting tissue in a human body, the device comprising:
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an elongate shaft having a proximal portion and a distal portion; at least one translatable blade disposed along one side of the distal portion of the shaft, wherein the blade has a height greater than a height of a portion of the shaft immediately below the blade, and wherein a total height of the blade and the portion of the shaft immediately below the blade is less than a width of the portion of the shaft immediately below the blade; and at least one actuator coupled with the at least one translatable blade and extending to the proximal portion of the shaft, wherein the actuator is configured to translate the blade to cut tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18)
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12. A system for cutting tissue in a human body, the system comprising:
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a tissue cutting device, comprising; an elongate shaft having a proximal portion and a distal portion; at least one translatable blade disposed along one side of the distal portion of the shaft, wherein the blade has a height greater than a height of a portion of the shaft immediately below the blade, and wherein a total height of the blade and the portion of the shaft immediately below the blade is less than a width of the portion of the shaft immediately below the blade; at least one actuator coupled with the at least one translatable blade and extending to the proximal portion of the shaft, wherein the actuator is configured to translate the blade to cut tissue; and a guidewire coupling member disposed on the distal portion of the shaft for coupling the shaft with a guidewire to pull the device into a desired position and/or to apply tensioning force to the device to urge the translatable blade against target tissue; and a guidewire configured to couple with the guidewire coupling member. - View Dependent Claims (13, 14, 15, 16, 17, 19, 20, 21, 22, 23)
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Specification