US4938743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical apparatus for performing suction lipectomy
Assignee: Individual
•
Filing: 1989-06-29
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Granted: 1990-07-03
•
Expires: 2009-06-29
Abstract
Abstract A cannula is provided with a guide bar, a rear end of which is formed with a mounting sleeve through which the cannula handle is clamped to the guide bar. The forward end of the guide bar carries a height adjustment bar having a pair of guide wheels rotatably mounted to a lower surface thereof between the guide bar and cannula tip. The height adjustment bar is provided with an elongate slot through which two screws pass for threaded connection to the forward end. Loosening of the screws permits the height adjustment bar to slide to vary the spacing between the guide wheels and cannula tip. The peripheral surface of each guide wheel is formed with an inner beveled edge that stretches the skin between the guide wheels during the suction lipectomy procedure enabling the cannula tip to travel at constant depth through the fatty tissue as the cannula is manually directed by the surgeon in reciprocating strokes.
Inventors
- 👤 Hans Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:24
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/84; A61M1/89; A61B; A61B90/00; A61B90/03; A61B2090/033; A61M2202/00; A61M2202/08; Y; Y10; Y10S; Y10S604/00; Y10S604/902
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
A device for use with a cannula having a handle and a tip, for positioning the tip of the cannula at a constant depth within subcutaneous fatty tissue to surgically aspirate the tissue upon application of suction supplied thereto through the tip, comprising a guide element formed with attachment means at a rear end of the guide element for attachment of the guide element to said handle of the cannula to secure said handle to the attachment means, said guide element including a guide surface spaced in relation to said tip when the cannula handle is secured to the guide element to thereby contact a portion of the skin covering the fatty tissue and maintain the cannula tip at said constant depth during reciprocating movement of the cannula and guide element with the guide surface moving on and in contact with the skin.
Claim 2
Independent Claim
143 words
A device for use with a cannula having a handle and a tip, for positioning the tip of the cannula at a constant depth within subcutaneous fatty tissue to surgically aspirate the tissue upon application of suction supplied thereto through the tip, comprising a guide element formed with attachment means at a rear end of the guide element for attachment of the guide element to said handle of the cannula to secure said handle to the attachment means, said guide element including a guide surface spaced in relation to said tip when the cannula handle is secured to the guide element to thereby contact a portion of the skin covering the fatty tissue and maintain the cannula tip at said constant depth during reciprocating movement of the cannula and guide element with the guide surface moving on and in contact with the skin.
Claim 3
Dependent Claim
53 words
The device of claim 1, said attachment means including a sleeve, wherein said sleeve is welded or otherwise secured to a rear end of the guide element and said clamping means includes at least one tightening screw extending radially through the sleeve to urge the cannula handle into tight contact with the sleeve.
Claim 4
Dependent Claim
23 words
The device of claim 2, wherein said sleeve includes an inner cylindrical surface against which an exterior surface of the handle is clamped.
Claim 5
Dependent Claim
31 words
The device of claim 1, further comprising a height adjustment member fixed to the forward end of the guide element, a lower end of the adjustment member defining said guide surface.
Claim 6
Dependent Claim
34 words
The device of claim 4, wherein the lower end of the height adjustment member includes a pair of guide wheels rotatably mounted thereon, a peripheral surface of said guide wheels defining said guide surface.
Claim 7
Dependent Claim
25 words
The device of claim 5, wherein each guide wheel is formed with an inner beveled edge intersecting the peripheral surface of the associated guide wheel.
Claim 8
Dependent Claim
19 words
The device of claim 1, wherein said attachment means is clamped to a front portion of the cannula handle.
Claim 9
Dependent Claim
53 words
The device of claim 1, wherein said guide element is formed with an elevated portion secured to the attachment means with a spacer portion so that the elevated portion extends generally parallel and coextensive to the cannula located forwardly of the handle and the spacer portion extends generally perpendicular to the cannula handle.
Claim 10
Independent Claim
162 words
A device for positioning a tip of a cannula at a constant depth within subcutaneous fatty tissue to surgically aspirate the tissue upon application of suction supplied thereto through the tip, comprising guide means mounted on the cannula for maintaining said tip at said constant depth as said tip is manually directed by a surgeon through the tissue in reciprocating strokes, said guide means including at a rear end thereof means for clamping the guide means to a handle of the cannula, said guide means including at a forward end thereof a vertically movable height adjustment member a lower portion of which defines a guide surface adapted to contact a portion of the skin covering the fatty tissue to locate the cannula tip at a constant depth as said tip is manually directed by a surgeon through the tissue in reciprocating strokes, said height adjustment member including means for tightening it to the guide means in selectively spaced locations to the tip.
Claim 11
Independent Claim
162 words
A device for positioning a tip of a cannula at a constant depth within subcutaneous fatty tissue to surgically aspirate the tissue upon application of suction supplied thereto through the tip, comprising guide means mounted on the cannula for maintaining said tip at said constant depth as said tip is manually directed by a surgeon through the tissue in reciprocating strokes, said guide means including at a rear end thereof means for clamping the guide means to a handle of the cannula, said guide means including at a forward end thereof a vertically movable height adjustment member a lower portion of which defines a guide surface adapted to contact a portion of the skin covering the fatty tissue to locate the cannula tip at a constant depth as said tip is manually directed by a surgeon through the tissue in reciprocating strokes, said height adjustment member including means for tightening it to the guide means in selectively spaced locations to the tip.
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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) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-02 | 2002-01-01 | 2002-07-03 | $7700.00 | Window Closed / Lapsed |