Liposuction cannula
First Claim
1. A liposuction cannula comprising a cannular tube having a proximal open end attachable to a vacuum source, an inside diameter not exceeding about 2.2 mm, and at least five apertures disposed laterally through at least one longitudinal segment of the tube, with the cross-sectional area of each aperture from about 7.6×
- 10-4 to about 3.0×
10-3 inch.
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Accused Products
Abstract
A liposuction cannula constructed of a cannular tube having a proximal open end attachable to a vacuum source and a plurality of apertures disposed laterally through at least one longitudinal segment of the tube. The apertures preferably are situated substantially uniformly about the tube and have a cross-sectional area of about 7.6×10-4 to about 3.0×10-3 inch. Inside diameter of the tube is preferably from about 1.2 mm to about 2.2 mm to thereby provide a cannula whose size causes a relatively minimal invasive action through individual incisions through skin to sites of lipid-containing tissue. A method of performing liposuction includes tumescent delivery of a local anesthetic and vasoconstrictor medication to an adipose tissue site and thereafter providing the cannula defined above to the site. The vacuum source is activated and the cannula is moved longitudinally forward and backward within the tissue site. By so doing, the apertures additionally function as a rasp by such longitudinal movement to facilitate disassociation of the lipid from the surrounding tissue.
236 Citations
33 Claims
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1. A liposuction cannula comprising a cannular tube having a proximal open end attachable to a vacuum source, an inside diameter not exceeding about 2.2 mm, and at least five apertures disposed laterally through at least one longitudinal segment of the tube, with the cross-sectional area of each aperture from about 7.6×
- 10-4 to about 3.0×
10-3 inch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- 10-4 to about 3.0×
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11. A liposuction cannula comprising a cannular tube having a proximal open end attachable to a vacuum source, an inside diameter from about 1.2 mm to about 2.2 mm, and at least five apertures disposed laterally through at least one longitudinal segment of the tube, with the cross-sectional area of each aperture from about 7.6×
- 10-4 to about 3.0×
10-3 inch.
- 10-4 to about 3.0×
-
12. A method of performing liposuction at an adipose tissue site, the method comprising:
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a) providing to the tissue site a tumescent quantity of a solution comprising a clinically effective dosage of a local anesthetic and a vasoconstrictor; b) providing a liposuction cannula comprising a cannular tube having a proximal open end attachable to a vacuum source, an inside diameter not exceeding about 2.2 mm, and at least five apertures disposed laterally through at least one longitudinal segment of the tube, with the cross-sectional area of each aperture from about 7.6×
10-4 to about 3.0×
10-3 inch;c) placing the liposuction cannula within the adipose tissue site and attaching its proximal open end to a vacuum source; and d) activating the vacuum source while longitudinally moving the cannula forward and backward within the tissue site, thereby effectuating adipocyte entrance from the adipose tissue site into the cannula through the apertures. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of performing liposuction at an adipose-containing breast tissue site, the method comprising:
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a) providing to the breast tissue site a tumescent quantity of a solution comprising a clinically effective dosage of a local anesthetic and a vasoconstrictor; b) providing a liposuction cannula comprising a cannular tube having a proximal open end attachable to a vacuum source, an inside diameter not exceeding about 2.2 mm, and at least five apertures disposed laterally through at least one longitudinal segment of the tube, with the cross-sectional area of each aperture from about 7.6×
10-4 to about 3.0×
10-3 inch;c) placing the liposuction cannula within the breast tissue site and attaching its proximal open end to a vacuum source; and d) activating the vacuum source while longitudinally moving the cannula forward and backward within the breast tissue site, thereby effectuating adipocyte entrance from the breast tissue site into the cannula through the apertures. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification