ASPIRATING CUTTER AND METHOD TO USE
First Claim
1. An ophthalmic A surgical cutting apparatus for cutting biological material, the apparatus comprising:
- a handle;
an outer tube attached to the handle and having a closed tip;
a port formed in a side wall of the outer tube, the port including an edge; and
an inner tube slidable within the outer tube and having a longitudinal axis and an open tip, the inner tube being in fluid communication with the handle,wherein at least one of the outer tube port edge and the inner tube open tip is formed with a cusp.
1 Assignment
0 Petitions
Accused Products
Abstract
An ophthalmic surgical cutting apparatus for cutting biological material including a handle, an outer tube attached to the handle and having a closed tip, a port formed in a side wall of the outer tube with a cusp formed by two or more intersecting surfaces, and an inner tube slidable within the outer tube and having a longitudinal axis and an open tip. The inner tube is in fluid communication with the handle, and the cusp of the port and the open tip interface during a cutting motion to fracture and cut biological materials and direct cut materials radially inward into the port.
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Citations
27 Claims
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1. An ophthalmic A surgical cutting apparatus for cutting biological material, the apparatus comprising:
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a handle; an outer tube attached to the handle and having a closed tip; a port formed in a side wall of the outer tube, the port including an edge; and an inner tube slidable within the outer tube and having a longitudinal axis and an open tip, the inner tube being in fluid communication with the handle, wherein at least one of the outer tube port edge and the inner tube open tip is formed with a cusp. - View Dependent Claims (2, 3, 8)
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4-7. -7. (canceled)
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9-10. -10. (canceled)
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11. A surgical cutting apparatus for cutting biological material, the apparatus comprising:
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a handle; an outer tube attached to the handle and having an open tip; an inner tube slidable within the outer tube and having a closed tip, the inner tube being in fluid communication with the handle; and a port formed in a side wall of the inner tube, the port including an edge, wherein the edge of the port and the open tip interface to fracture and cut biological materials, and wherein the inner tube is extendable beyond the outer tube. - View Dependent Claims (12, 14, 15, 17, 18)
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13. (canceled)
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16. (canceled)
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19. A surgical cutting apparatus for cutting biological material, the apparatus comprising:
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a handle; an outer tube attached to the handle and having a closed tip; a first port formed in a side wall of the outer tube, the port including a cusp formed by two or more intersecting surfaces; an inner tube slidable within the outer tube and having a longitudinal axis and an open tip, the inner tube being in fluid communication with the handle; and a second port formed in a side wall of the inner tube, wherein the cusp of the first port and the open tip of the inner tube interface during a cutting motion to fracture and cut biological materials and direct cut materials radially inward into the first port, wherein the first and second ports overlap when the inner tube is in an extended position within the outer tube, and wherein an edge of the first port further from the closed tip than the cusp is configured to interface with an edge of the second port to fracture and cut biological materials. - View Dependent Claims (20, 24, 25)
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21-23. -23. (canceled)
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26. A method of operating a surgical cutting apparatus, the surgical cutting apparatus including a handle, an outer tube with a closed tip, an inner tube with an open tip, a first port formed in a side wall of the outer tube, and a second port formed in a side wall of the inner tube, the method comprising:
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operating the surgical cutting apparatus in a first mode of operation, the first mode of operation including positioning the inner tube in an extended position, and aspirating biological tissue through the first and second ports; operating the surgical cutting apparatus in a second mode of operation, the second mode of operation including positioning the inner tube in the extended position, aspirating biological tissue through the first and second ports, actuating the inner tube to move from the extended position to a retracted position when the biological material is occluding the second port, and returning the inner tube to the extended position; and operating the surgical cutting apparatus in a third mode of operation, the third mode of operating including positioning the inner tube in the retracted position, aspirating biological tissue through the first port, actuating the inner tube to move from the retracted position to the extended position when biological tissue is occluding the first port, and returning the inner tube to the retracted position.
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27-30. -30. (canceled)
Specification