US5665101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscopic or open lipectomy instrument
Assignee: Linvatec Corp
•
Filing: 1996-04-01
•
Granted: 1997-09-09
•
Expires: 2016-04-01
Abstract
Abstract A single surgical instrument capable of being used as a powered resection instrument or a conventional liposuction cannula. The instrument is elongated and may be used in either open or closed (endoscopic) lipectomy procedures, with or without visualization. The instrument comprises a stationary elongated outer tube having a side-facing window near its distal tip and a rotatable elongated inner tube situated within the outer tube and having a cutting edge juxtaposed adjacent the window of the outer tube. The method of using the device comprises the steps of utilizing it as a powered resecting instrument, in which the uniquely shaped surfaces of the inner edge and outer window cooperate to resect tissue, or as a liposuction cannula in which the inner member is stopped in alignment with the outer window.
Inventors
- 👤 Daniel G. Becker
- 👤 Charles W. Gross
- 👤 Michael P. Glowa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61M; A61M1/00; A61M1/84; A61M1/842; A61B2217/00; A61B2217/002; A61B2217/005; A61M2202/00; A61M2202/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
A method of cutting tissue with a rotary powered surgical instrument having an elongated inner tube with a first distal cutting window rotatable within an elongated outer tube with a second distal cutting window comprising the steps of: providing said second cutting window with a rectangular side-facing opening, formed by two parallel and spaced transverse edges and two parallel and spaced longitudinal edges; rounding the longitudinal edges of said second cutting window; providing said first cutting window with a rectangular side-facing opening, formed by two parallel and spaced transverse edges and two parallel and spaced longitudinal edges; sharpening the longitudinal edges of said first cutting window; rotating the inner tube within the outer tube.
Claim 2
Independent Claim
114 words
A method of cutting tissue with a rotary powered surgical instrument having an elongated inner tube with a first distal cutting window rotatable within an elongated outer tube with a second distal cutting window comprising the steps of: providing said second cutting window with a rectangular side-facing opening, formed by two parallel and spaced transverse edges and two parallel and spaced longitudinal edges; rounding the longitudinal edges of said second cutting window; providing said first cutting window with a rectangular side-facing opening, formed by two parallel and spaced transverse edges and two parallel and spaced longitudinal edges; sharpening the longitudinal edges of said first cutting window; rotating the inner tube within the outer tube.
Claim 3
Dependent Claim
35 words
A method according to claim 1 further comprising the step of: forming the longitudinal edges of both said first and second cutting windows lie in a diametral plane of the respective inner and outer tube.
Claim 4
Independent Claim
100 words
A method of removing tissue from a surgical site comprising the steps of: providing a rotary powered surgical instrument having an elongated inner tube with a first distal cutting window rotatable within an elongated outer tube with a second distal cutting window; providing a vacuum source and connecting it to the proximal end of said surgical instrument to aspirate the tissue therethrough; rotating the inner tube within the outer tube to resect tissue; stopping the rotation of the inner tube within the outer with the first and second windows aligned; operating the assembly as a liposuction cannula to aspirate tissue.
Claim 5
Independent Claim
100 words
A method of removing tissue from a surgical site comprising the steps of: providing a rotary powered surgical instrument having an elongated inner tube with a first distal cutting window rotatable within an elongated outer tube with a second distal cutting window; providing a vacuum source and connecting it to the proximal end of said surgical instrument to aspirate the tissue therethrough; rotating the inner tube within the outer tube to resect tissue; stopping the rotation of the inner tube within the outer with the first and second windows aligned; operating the assembly as a liposuction cannula to aspirate tissue.
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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) | 2000-09-08 | 2001-03-10 | 2001-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-08 | 2005-03-10 | 2005-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-08 | 2009-03-10 | 2009-09-09 | $7700.00 | Window Closed / Lapsed |