Liposuction cannula with abrading apertures

• US 6,676,677 B2
• Filed: 05/11/2001
• Issued: 01/13/2004
• Est. Priority Date: 05/11/2001
• Status: Expired due to Fees

• Current Assignee: Jeffrey A. Klein
• Original Assignee: Jeffrey A. Klein
• Inventors: Klein, Jeffrey A.
• Primary Examiner(s): Vanatta, A.
• Application Number:
  US09/853,224
• Publication Number:
  US 20020169469A1
• Time in Patent Office: 977 Days
• Field of Search: 606/167, 606/170, 606/171, 606/172, 606/168, 606/169, 604/22, 604/35, 604/36, 604/48, 604/27, 604/19, 604/43, 604/239, 604/902, 604/523, 604/264, 604/268, 604/93.01
• US Class Current: 606/171
• CPC Class Codes: A61B 17/320783 through side-hole, e.g. sliding or rotating cutter inside catheter
• CPC Class Codes: A61B 2017/320008 Scrapers
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/89 Suction aspects of liposuction surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2202/08 Lipoids

Abstract

A liposuction cannula with abrading suction apertures and a method of using a cannula with abrading suction apertures are disclosed. The liposuction cannula comprises: a hand-holdable housing having a cavity; a cannular tube having a distal end and a proximal end, the proximal end of the cannular tube being insertable within the cavity; and a plurality of abrading suction apertures about the cannular tube distal end. The abrading suction apertures can be arranged in a variety of configurations, for example, axially about the distal end of the cannular tube, radially about the distal end of the cannular tube or angularly about the distal end of the cannular tube. The abrading suction apertures include a hole, and an abrading member which may be a raised leading edge, a depressed trailing edge, or both a raised leading edge and a depressed trailing edge.

Claims

1. A liposuction cannula comprising:

a) a hand holdable housing having a cavity;

b) a cannular tube having a distal end and a proximal end, the proximal end of the cannular tube being insertable within the cavity; and

c) a plurality of abrading suction apertures about the cannular tube distal end, at least a portion of the periphery of each of the abrading suction apertures being raised.

2. The liposuction cannula of claim 1, wherein the abrading suction apertures are arranged axially about the distal end of the cannular tube.

3. The liposuction cannula of claim 1, wherein the abrading suction apertures comprise:

a) a hole;

b) a raised leading edge; and

c) a depressed trailing edge.

4. The liposuction cannula of claim 1, wherein the abrading suction apertures comprise:

a) a hole; and

b) leading edge.

5. The liposuction cannula of claim 1, wherein the abrading suction apertures comprise:

a) a hole; and

b) a depressed trailing edge.

6. A liposuction cannula comprising:

a) a hand-holdable housing having a cavity;

b) a cannular tube having a distal end and a proximal end, the proximal end of the cannular tube being insertable within the cavity; and

c) a plurality of abrading suction apertures about the cannular tube distal end, each of the abrading suction apertures comprising a hole;

a raised leading edge; and

a depressed trailing edge.

7. The liposuction cannula of claim 6, wherein the abrading suction apertures are arranged axially about the distal end of the cannular tube.

8. A liposuction cannula comprising:

a) a hand-holdable housing having a cavity;

b) a cannular tube having a distal end and a proximal end, the proximal end of the cannular tube being insertable within the cavity; and

c) a plurality of abrading suction apertures about the cannular tube distal end, each of the abrading suction apertures comprising a hole and a raised leading edge.

9. The liposuction cannula of claim 8, wherein the abrading suction apertures are arranged axially about the distal end of the cannular tube.

11. The liposuction cannula of claim 8, wherein the abrading suction apertures are arranged axially about the distal end of the cannular tube.

10. A liposuction cannula comprising:

a) a hand-holdable housing having a cavity;

b) a cannular tube having a distal end and a proximal end, the proximal end of the cannular tube being insertable within the cavity; and

c) a plurality of abrading suction apertures about the cannular tube distal end, each of the abrading suction apertures comprising a hole and a depressed trailing edge.