Surgical instrument with distal suction capability
First Claim
1. A surgical instrument comprising:
- a tubular body with a proximal end and a distal end, a window disposed at a side of the tubular body near the distal end; and
a suction conduit attached to and slidably disposed over the tubular body before the surgical instrument is inserted into a patient, the suction conduit being slidably movable along the tubular body between a retracted position, at which the suction conduit does not cover the window of the tubular body, and an extended position at which the suction conduit covers the window of the tubular body and a distal end of the suction conduit is located distally beyond the window of the tubular body, the suction conduit including a suction inlet at the distal end of the suction conduit, the distal end of the suction conduit is open to form the suction inlet, and the distal end of the suction conduit is located proximal of the window of the tubular body when the suction conduit is in the retracted position,wherein the tubular body is configured such that when the suction conduit is in the extended position, a first gap exists between an inner surface of the suction conduit and a distal-most edge of the window and a second gap, smaller than the first gap, exists between the inner surface of the suction conduit and an outermost surface of the tubular body on a side of the tubular body opposite from the window, such that fluid flows through the suction inlet, the first gap and the window when a vacuum is applied through an internal bore of the tubular body.
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Accused Products
Abstract
A surgical instrument including a main unit and a suction conduit. The main unit includes at least one tubular body having a distal end, a proximal end, and an inlet disposed near the distal end. The suction conduit is slidably disposed over the main unit, and is slidably movable along the main unit between a retracted position, at which the suction conduit does not cover the inlet of the main unit, and an extended position at which the suction conduit covers the inlet of the main unit and a suction inlet of the suction conduit is placed in fluid-communication with the main unit inlet. The surgical instrument can be used as a suction tool by placing the suction conduit in the extended position and applying a vacuum through the inlet of the main unit and the suction inlet.
63 Citations
18 Claims
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1. A surgical instrument comprising:
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a tubular body with a proximal end and a distal end, a window disposed at a side of the tubular body near the distal end; and a suction conduit attached to and slidably disposed over the tubular body before the surgical instrument is inserted into a patient, the suction conduit being slidably movable along the tubular body between a retracted position, at which the suction conduit does not cover the window of the tubular body, and an extended position at which the suction conduit covers the window of the tubular body and a distal end of the suction conduit is located distally beyond the window of the tubular body, the suction conduit including a suction inlet at the distal end of the suction conduit, the distal end of the suction conduit is open to form the suction inlet, and the distal end of the suction conduit is located proximal of the window of the tubular body when the suction conduit is in the retracted position, wherein the tubular body is configured such that when the suction conduit is in the extended position, a first gap exists between an inner surface of the suction conduit and a distal-most edge of the window and a second gap, smaller than the first gap, exists between the inner surface of the suction conduit and an outermost surface of the tubular body on a side of the tubular body opposite from the window, such that fluid flows through the suction inlet, the first gap and the window when a vacuum is applied through an internal bore of the tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surgical instrument comprising:
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a tubular body with a proximal end and a distal end, a window disposed at a side of the tubular body near the distal end; a suction conduit attached to and slidably disposed over the tubular body before the surgical instrument is inserted into a patient, the suction conduit being slidably movable along the tubular body between a retracted position, at which the suction conduit does not cover the window of the tubular body, and an extended position at which the suction conduit covers the window of the tubular body and a distal end of the suction conduit is located distally beyond the window of the tubular body, the suction conduit including a suction inlet at the distal end of the suction conduit; and an inner tubular conduit with a proximal end and a distal end, a window disposed at a side of the inner tubular conduit near the distal end, the inner tubular conduit movably disposed inside of the tubular body, wherein the tubular body is configured such that when the suction conduit is in the extended position, a first gap exists between an inner surface of the suction conduit and a distal-most edge of the window and a second gap, smaller than the first gap, exists between the inner surface of the suction conduit and an outermost surface of the tubular body on a side of the tubular body opposite from the window, such that fluid flows through the suction inlet, the first gap and the window when a vacuum is applied through an internal bore of the tubular body, and the inner tubular conduit and the tubular body are configured such that when the inner tubular conduit and the tubular body are oriented with their windows in alignment and the suction conduit is in the extended position, the fluid flows through the suction inlet, the first gap and the aligned windows when the vacuum is applied through an internal bore of the inner tubular conduit. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification