Tissue removal probe with irrigation and aspiration ports
First Claim
1. A tissue removal probe, comprising:
- an elongated member having a lumen and a distal tip;
a window laterally formed on the member;
a drive shaft rotatably disposed within the member lumen;
a rotatable tissue removal element disposed on the drive shaft;
an irrigation lumen extending through the member in fluid communication with the window; and
an aspiration lumen extending through the member in fluid communication with the window.
2 Assignments
0 Petitions
Accused Products
Abstract
A probe and method for removing tissue is provided. The probe comprises an elongated member, a window laterally formed on the distal end of the member, a drive shaft rotatably disposed within the lumen of the member, and a rotatable tissue removal element disposed on the drive shaft. The tissue removal probe further comprises irrigation and aspiration lumens extending through the member in fluid communication with the window. In one method, target tissue, e.g., bone tissue, can be removed without removing non-target tissue, e.g., nerve tissue, by rotating the tissue removal element relative to the window. Fluid can be conveyed through the irrigation lumen into contact with the rotating tissue removal element. As a result of the rotation of the tissue removal element, the tissue is irrigated and removed, and forced towards the aspiration lumen. The irrigation fluid and removed tissue is then aspirated into the aspiration lumen.
114 Citations
49 Claims
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1. A tissue removal probe, comprising:
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an elongated member having a lumen and a distal tip;
a window laterally formed on the member;
a drive shaft rotatably disposed within the member lumen;
a rotatable tissue removal element disposed on the drive shaft;
an irrigation lumen extending through the member in fluid communication with the window; and
an aspiration lumen extending through the member in fluid communication with the window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of removing tissue, comprising:
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providing a probe with a window, a tissue removal element disposed in the window, and separate irrigation and aspiration lumens in fluid communication with the window;
placing the window against tissue;
rotating the tissue removal element;
conveying fluid through the irrigation lumen into contact with the rotating tissue removal element, whereby rotation of tissue removal element irrigates and removes the tissue, and forces the fluid and removed tissue towards the aspiration lumen; and
aspirating the irrigation fluid and removed tissue into the aspiration lumen. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of removing target tissue without removing non-target tissue, comprising:
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providing a probe with a window, a tissue removal element disposed in the window, and separate irrigation and aspiration lumens in fluid communication with the window;
placing the probe between the target tissue and the non-target tissue, wherein the window is placed against the target tissue and the non-target tissue is shielded from the tissue removal element;
conveying fluid through the irrigation lumen into contact with the rotating tissue removal element, whereby rotation of tissue removal element irrigates and removes the target tissue, and forces the fluid and removed target tissue towards the aspiration lumen; and
aspirating the irrigation fluid and removed target tissue into the aspiration lumen. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A tissue removal probe, comprising:
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an elongated member having a lumen and a distal tip;
a window laterally formed on the member;
a drive shaft rotatably disposed within the member lumen;
a rotatable tissue removal element disposed on the drive shaft;
at least one of an irrigation lumen and aspiration lumen extending through the member in fluid communication with the window. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of removing tissue, comprising:
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providing a probe with a window, a tissue removal element disposed in the window, and an irrigation lumen in fluid communication with the window;
placing the window against tissue;
rotating the tissue removal element; and
conveying fluid through the irrigation lumen into contact with the rotating tissue removal element, whereby rotation of tissue removal element irrigates and removes the tissue. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. A method of removing target tissue without removing non-target tissue, comprising:
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providing a probe with a window, a tissue removal element disposed in the window, and separate irrigation and aspiration lumens in fluid communication with the window;
placing the probe between the target tissue and the non-target tissue, wherein the window is placed against the target tissue and the no-target tissue is shielded from the tissue removal element; and
conveying fluid through the irrigation lumen into contact with the rotating tissue removal element, whereby rotation of tissue removal element irrigates and removes the target tissue. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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Specification