Variable diameter surgical drains and sheaths
First Claim
1. A surgical drain comprising:
- an elongated structure comprising;
a distal end configured to be placed in a body cavity and change in diameter when present in the body cavity from a first diameter to a second diameter that is smaller than the first diameter;
a proximal end configured to be outside of the body when the distal end is present in the body cavity;
a lumen configured to drain a substance from the body cavity;
a wall portion and optionally a core portion; and
a diameter-varying element that mediates the change in diameter of the distal end and lumen of the elongated structure, wherein the diameter varying element is;
either present when the elongated structure is initially placed in the body cavity or is inserted into the elongated structure after the elongated structure has been placed in the body cavity;
is present in the wall portion or the core portion of the elongated structure; and
comprises a spiral balloon.
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Accused Products
Abstract
Surgical drains and methods for using the same for draining a body cavity are provided. Aspects of the surgical drains of the invention include an elongated structure having a proximal end and a distal end and a lumen configured to drain a substance from the body cavity. The distal end is configured to be placed in a body cavity and change in diameter when present in the body cavity from a first diameter to a second diameter that is smaller than the first diameter, where the change in diameter is mediated by a diameter-varying element. Aspects of the invention further include sheaths configured to be disposed around surgical drains, such as surgical drains of the invention, and methods of using the surgical drains and sheaths. The devices and methods of the invention find use in a variety of applications.
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Citations
17 Claims
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1. A surgical drain comprising:
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an elongated structure comprising; a distal end configured to be placed in a body cavity and change in diameter when present in the body cavity from a first diameter to a second diameter that is smaller than the first diameter; a proximal end configured to be outside of the body when the distal end is present in the body cavity; a lumen configured to drain a substance from the body cavity; a wall portion and optionally a core portion; and a diameter-varying element that mediates the change in diameter of the distal end and lumen of the elongated structure, wherein the diameter varying element is; either present when the elongated structure is initially placed in the body cavity or is inserted into the elongated structure after the elongated structure has been placed in the body cavity; is present in the wall portion or the core portion of the elongated structure; and comprises a spiral balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17)
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14. A system comprising:
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an elongated structure comprising; a distal end configured to be placed in a body cavity and change in diameter when present in the body cavity from a first diameter to a second diameter that is smaller than the first diameter; a proximal end configured to be outside of the body when the distal end is present in the body cavity; a lumen configured to drain a substance from the body cavity; a wall portion and optionally a core portion; a drainage apparatus; and a diameter-varying element that mediates the change in diameter of the distal end and lumen of the elongated structure, wherein the diameter-varying element is; either present when the elongated structure is initially placed in the body cavity or is inserted into the elongated structure after the elongated structure has been placed in the body cavity; is present in the wall portion or the core portion of the elongated structure; and comprises a spiral balloon.
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Specification