US6875207B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liposuction cannula device and method
Assignee: Lawrence Livermore National Security LLC
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Filing: 2003-04-30
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Granted: 2005-04-05
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Expires: 2023-04-30
Abstract
Abstract A liposuction apparatus and method optionally having a sonic or ultrasonic source with an axial lumen passage in which the shaft can be made to reciprocate (oscillate) in a non-rectilinear fashion. The apparatus may also contain the concomitant use of rectilinear reciprocation motion in addition to ultrasonic motion or energy along the shaft of the apparatus. The advantages of the liposuction apparatus are as follows: 1) non-rectilinear single shaft reciprocating cannula, 2) sonic or ultrasonic energy delivered to the distal tip, 3) rectilinear reciprocating cannula with ultrasonic energy along the shaft from the handle, and 4) any of the above reciprocating components powered by excess unused vacuum capacity in the liposuction aspirator (suction engine) apparatus. There are three (3) primary sources of energy applied to the cannula shaft: the first is the oscillating surgeon's arm motion (approximately 1-2 hertz); the reciprocating motion (of about 100 Hz); and the optional concomitant motion as delivered by the ultrasonic energy (e.g. 25 KHz).
Inventors
- 👤 Paul J. Weber
- 👤 Steven R. Visuri
- 👤 Matthew J. Everett
- 👤 Luiz B. Da Silva
- 👤 Alwin H. Kolster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B17/320016; A61B17/32002; A61M; A61M1/00; A61M1/84; A61M1/842; A61M1/89; A61B2017/00681; A61B2017/00738; A61B2017/32007; A61B2217/00; A61B2217/002; A61B2217/005; A61M2202/00; A61M2202/08; A61M2205/00; A61M2205/10; A61M2205/103; A61M2205/106; Y; Y10; Y10S; Y10S604/00; Y10S604/902
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
62 words
A method for carrying out liposuction, including: providing a single cannula shaft for at least loosening target material, oscillating a distal end of the shaft by utilizing energy from a combination of at least two different types of energy sources selected from ultrasonic, vacuum, electrical, pneumatic and hydraulic energy, and providing means for suctioning material at least loosened by the oscillating shaft.
Claim 2
Independent Claim
62 words
A method for carrying out liposuction, including: providing a single cannula shaft for at least loosening target material, oscillating a distal end of the shaft by utilizing energy from a combination of at least two different types of energy sources selected from ultrasonic, vacuum, electrical, pneumatic and hydraulic energy, and providing means for suctioning material at least loosened by the oscillating shaft.
Claim 3
Dependent Claim
20 words
The method of claim 1 , additionally including providing means for directing fluid to the distal end of the shaft.
Claim 4
Dependent Claim
18 words
The method of claim 1 , additionally including providing means for retaining a proximal end of the shaft.
Claim 5
Dependent Claim
20 words
The method of claim 1 , wherein one of the different types of energy sources is derived from negative pressure.
Claim 6
Dependent Claim
41 words
The method of claim 1 , wherein providing means for suctioning material is carried out by providing the distal end of the shaft with an opening selected from the group consisting of a series of scalloped shaped edges and geometric edges.
Claim 7
Dependent Claim
19 words
The method of claim 1 , additionally including providing a handpiece for retaining a proximal end of the shaft.
Claim 8
Dependent Claim
27 words
The method of claim 6 , wherein providing means for oscillating the distal end of the shaft is carried out by providing a motor within the handpiece.
Claim 9
Dependent Claim
50 words
The method of claim 7 , wherein providing means for oscillating the distal end of the shaft additionally including providing a vacuum source, providing a shuttle valve between the vacuum source and the motor, and providing means whereby the motor is oscillated by the vacuum source via the shuttle valve.
Claim 10
Dependent Claim
37 words
The method of claim 1 , wherein providing means for oscillating the distal end of the shaft is carried out by providing a combination of two different energy sources for oscillating the distal end of the shaft.
Claim 11
Dependent Claim
20 words
The method of claim 9 , wherein the two different energy sources comprises an ultrasonic source and a vacuum source.
Claim 12
Dependent Claim
26 words
The method of claim 6 , additionally including interconnecting the shaft with the handpiece by providing a swan neck member between the handpiece and the shaft.
Claim 13
Dependent Claim
39 words
The method of claim 1 , additionally including providing a temperature sensor at the tip for feedback control for cooling fluid/gas necessary to be delivered to the tip, and providing a cooling fluid/gas supply controlled by the feedback control.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-04-04 | 2008-10-04 | 2009-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-04-04 | 2012-10-04 | 2013-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-04-04 | 2016-10-04 | 2017-04-05 | $7700.00 | Window Closed / Lapsed |