Tool member cover and cover deployment device
First Claim
Patent Images
1. A surgical instrument for insertion into a body lumen comprising:
- an elongated body portion having an outer surface;
a tool assembly supported on a distal end of the elongated body portion;
a cover fitted about the elongated body portion, the cover movable from a first proximal position to a second position to cover a distal end of the tool assembly, the cover having a distal end secured to the elongated body portion adjacent the tool assembly; and
a cover deployment member separable from the cover, the cover deployment member being positioned about the elongated body portion between the elongated body portion and the cover and being slidable in a distal direction along the body portion to move the cover to the second position.
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Accused Products
Abstract
A surgical instrument including a tool member cover and a cover deployment device are disclosed. The cover is supported adjacent to or on the tool assembly of the surgical instrument and is movable from a first position in which the tool assembly is uncovered to a second position in which the tool assembly is at least partially encompassed by the cover. The deployment device is provided for moving the cover from the first position to the second position.
249 Citations
19 Claims
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1. A surgical instrument for insertion into a body lumen comprising:
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an elongated body portion having an outer surface; a tool assembly supported on a distal end of the elongated body portion; a cover fitted about the elongated body portion, the cover movable from a first proximal position to a second position to cover a distal end of the tool assembly, the cover having a distal end secured to the elongated body portion adjacent the tool assembly; and a cover deployment member separable from the cover, the cover deployment member being positioned about the elongated body portion between the elongated body portion and the cover and being slidable in a distal direction along the body portion to move the cover to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical instrument for insertion into a body lumen comprising:
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an elongated body portion; a tool assembly supported on a distal end of the elongated body portion; a cover having open proximal and distal ends and defining a lumen between the proximal and distal ends, the distal end of the cover attached to the surgical instrument adjacent a proximal end of the tool assembly, the cover being movable from a proximal position in which a portion of the elongated body portion is disposed within the lumen of the cover to a distal position in which the tool assembly of the surgical instrument is disposed within the lumen of the cover; and a cover deployment member having an annular engagement portion extending at least partially about the elongated body portion, the cover deployment member being slidable about the elongated body portion to engage and move the cover from the proximal position to the distal position. - View Dependent Claims (18)
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19. A surgical instrument for insertion into a body lumen comprising:
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an elongated body portion; a tool assembly supported on a distal end of the elongated body portion; a cover having open proximal and distal ends and defining a lumen between the proximal and distal ends, the distal end of the cover attached the surgical instrument adjacent a proximal end of the tool assembly, the cover being movable from a proximal position in which a portion of the elongated body portion is disposed within the lumen of the cover to a distal position in which the tool assembly of the surgical instrument is disposed within the lumen of the cover; and
a cover deployment member having an annular engagement portion extending at least partially about the elongated body portion, the cover deployment member being slidable about the elongated body portion to engage and move the cover from the proximal position to the distal position, the cover deployment member including a first half-section and a second half-section coupled together by at least one expandable member such that the cover deployment member is movable between a contracted configuration and an expanded configuration, the annular engagement portion having a diameter less than the diameter of the tool assembly in the contracted configuration and a diameter greater than the diameter of the tool assembly in the expanded configuration, wherein the first and second half-sections of the annular engagement portion are configured to expand outwardly to the expanded configuration as the annular engagement portion rides over the tool assembly.
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Specification