US6869439B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic dissector
Assignee: United States Surgical Corp
•
Filing: 2002-08-19
•
Granted: 2005-03-22
•
Expires: 2022-08-19
Abstract
Abstract An ultrasonic surgical instrument for dissection and coagulation of tissue is provided. The surgical instrument includes a vibration coupler supported within a housing and operably connected to an ultrasonic generator. An angled blade member is connected to the distal end of the vibration coupler to conduct high frequency vibration from the ultrasonic generator to the blade member. A clamp member is positioned adjacent to the blade member and is movable from a first position to a second approximated position. The clamp member and angled blade member combine to enhance contact between the tissue and the blade member during operation of the instrument to improve the performance of the instrument.
Inventors
- 👤 Jeffrey S. White
- 👤 Howard Alliger
- 👤 Ronald R. Manna
- 👤 Daniel Voic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B17/320092; A61B17/28; A61B17/2812; A61B17/2833; A61B2017/2837; A61B17/29; A61B2017/2926; A61B2017/2932; A61B2017/2944; A61B2017/2946; A61B2017/320072; A61B2017/320074; A61B2017/320075; A61B2017/320094; A61B2017/320095
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
140 words
A surgical cutting instrument comprising: a housing defining a longitudinal axis; a vibration coupler positioned within the housing and having a proximal end positioned to engage an ultrasonic generator; a tool member supported adjacent a distal end of the vibration coupler and having a cutting surface; a clamp pivotally connected to the housing, the clamp being positioned adjacent the tool member and being movable from an open position spaced from the cutting surface to a closed position in close alignment with the cutting surface; an actuation member operably connected to the clamp and being movable to move the clamp between the open and closed positions; and a retaining mechanism supported by the housing, the retaining mechanism being positioned and configured to selectively retain the clamp at a plurality of positions in relation to the cutting surface of the tool member.
Claim 2
Dependent Claim
140 words
A surgical cutting instrument comprising: a housing defining a longitudinal axis; a vibration coupler positioned within the housing and having a proximal end positioned to engage an ultrasonic generator; a tool member supported adjacent a distal end of the vibration coupler and having a cutting surface; a clamp pivotally connected to the housing, the clamp being positioned adjacent the tool member and being movable from an open position spaced from the cutting surface to a closed position in close alignment with the cutting surface; an actuation member operably connected to the clamp and being movable to move the clamp between the open and closed positions; and a retaining mechanism supported by the housing, the retaining mechanism being positioned and configured to selectively retain the clamp at a plurality of positions in relation to the cutting surface of the tool member.
Claim 3
Dependent Claim
22 words
A surgical cutting instrument according to claim 1 , further including a biasing mechanism for urging the clamp toward the open position.
Claim 4
Dependent Claim
32 words
A surgical cutting instrument according to claim 2 , wherein the retaining mechanism is positioned to selectively retain the clamp at multiple distinct positions between the open position and the closed position.
Claim 5
Dependent Claim
15 words
A surgical cutting instrument according to claim 3 , wherein the actuation-member includes a rod.
Claim 6
Dependent Claim
21 words
A surgical cutting instrument according to claim 4 , wherein the retaining mechanism includes a rack positioned on the actuation rod.
Claim 7
Dependent Claim
42 words
A surgical cutting instrument according to claim 5 , wherein the retaining mechanism further includes a retaining member, the retaining member being movable into operable engagement with the rack to retain the clamp in multiple locations between the open and closed positions.
Claim 8
Dependent Claim
32 words
A surgical cutting instrument according to claim 1 , wherein the cutting surface of the tool member defines an axis which extends radially outwardly of the longitudinal axis of the vibration coupler.
Claim 9
Dependent Claim
19 words
A surgical cutting instrument according to claim 7 , wherein the cutting surface of the tool member is linear.
Claim 10
Dependent Claim
30 words
A surgical cutting instrument according to claim 8 , wherein the cutting surface of the tool member and the longitudinal axis of the vibration coupler define a fixed obtuse angle.
Claim 11
Dependent Claim
18 words
A surgical instrument according to claim 1 , wherein the cutting surface of the tool member is linear.
Claim 12
Dependent Claim
34 words
A surgical instrument according to claim 10 , wherein the cutting surface of the tool member is continuous from a proximal end of the cutting surface to a distal end of the cutting surface.
Claim 13
Dependent Claim
104 words
An ultrasonic instrument comprising: a cylindrical body defining a lumen and having a longitudinal axis; a vibration coupler being positioned within the body and having a first end configured to be operably connected to an ultrasonic generator and a second end supporting a tool member; a clamp member pivotally supported adjacent the tool member about a pivot axis, the clamp member being pivotable between an open position spaced from the tool member and a closed position in juxtaposed alignment with the tool member; and a retaining mechanism positioned to selectively retain the clamp member in multiple distinct positions between the open and closed positions.
Claim 14
Dependent Claim
104 words
An ultrasonic instrument comprising: a cylindrical body defining a lumen and having a longitudinal axis; a vibration coupler being positioned within the body and having a first end configured to be operably connected to an ultrasonic generator and a second end supporting a tool member; a clamp member pivotally supported adjacent the tool member about a pivot axis, the clamp member being pivotable between an open position spaced from the tool member and a closed position in juxtaposed alignment with the tool member; and a retaining mechanism positioned to selectively retain the clamp member in multiple distinct positions between the open and closed positions.
Claim 15
Dependent Claim
22 words
An ultrasonic instrument according to claim 12 , further including a biasing mechanism for urging the clamp member towards the open position.
Claim 16
Dependent Claim
16 words
An ultrasonic instrument according to claim 12 , further including an actuation member including a rod.
Claim 17
Dependent Claim
20 words
An ultrasonic instrument according to claim 5 , wherein the retaining mechanism includes a rack positioned on the actuation rod.
Claim 18
Dependent Claim
42 words
An ultrasonic instrument according to claim 15 , wherein the retaining mechanism further includes a retaining member, the retaining member being movable into operable engagement with the rack to retain the clamp member at multiple locations between the open and closed positions.
Claim 19
Dependent Claim
27 words
An ultrasonic instrument according to claim 12 , wherein the tool member defines an axis which extends radially outwardly of the longitudinal axis of the vibration coupler.
Claim 20
Dependent Claim
17 words
An ultrasonic instrument according to claim 17 , wherein the tool member includes a linear cutting surface.
Claim 21
Dependent Claim
29 words
An ultrasonic instrument according to claim 8 , wherein a cuffing surface of the tool member and the longitudinal axis of the vibration coupler define a fixed obtuse angle.
Claim 22
Dependent Claim
35 words
An ultrasonic instrument according to claim 18 , wherein the linear cutting surface of the tool member is continuous from a proximal end of the cutting surface to a distal end of the cutting surface.
Claim 23
Dependent Claim
29 words
A surgical cutting instrument according to claim 1 , wherein the clamp is pivotally connected to the housing at a location offset from the longitudinal axis of the housing.
Claim 24
Dependent Claim
23 words
An ultrasonic instrument according to claim 12 , wherein the pivot axis is spaced radially of the longitudinal axis of the cylindrical body.
Claim 25
Dependent Claim
25 words
An ultrasonic instrument according to claim 18 , wherein the linear cutting surface is positioned at an angle to the longitudinal axis of the housing.
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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) | 2008-03-21 | 2008-09-20 | 2009-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-21 | 2012-09-20 | 2013-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-21 | 2016-09-20 | 2017-03-22 | $7700.00 | Window Closed / Lapsed |