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US6258111B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus and method for performing ophthalmic procedures

Assignee: ENGO CORP
•
Filing: 1999-08-05
•
Granted: 2001-07-10
•
Expires: 2019-08-05
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Abstract

Abstract A surgical cutting system. The cutting system includes a cutter which has an inner sleeve that moves adjacent to an aspiration port of an outer sleeve. The inner sleeve is coupled to a source of vacuum that pulls tissue into the outer port when the inner sleeve is moved away from the port. The inner sleeve then moves across the outer port and severs the tissue in a guillotine fashion. The tip of the inner sleeve may exert a spring force that assist in the cutting action of the cutter. The cutter includes a motor which creates an oscillating translational movement of the sleeve. The motor can be controlled by a controller that is coupled a foot pedal. The foot pedal and controller can be configured so that the motor decreases speed as the pedal is depressed by the operator. The inner sleeve is coupled to an aspiration line that pulls the severed tissue out of the cutter. The level of the aspiration vacuum pressure can be controlled by a variable regulator valve. The regulator valve is coupled to the controller and the foot pedal. The foot pedal may have a switch that allows the system to operate in either a variable speed mode or a variable pressure mode. In the variable speed mode the actuation of the foot pedal changes the speed of the motor. In the variable pressure mode the actuation of the foot pedal changes the vacuum level within the aspiration line.

Inventors

  • 👤 Rod Ross
  • 👤 Greggory Hughes
  • 👤 James C. Boore
  • 👤 Thomas E. Reimer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:19
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61F; A61F9/00; A61F9/007; A61F9/00736; A61F9/00763; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B2017/00017; A61B2017/00115; A61B2017/00535; A61B2017/00544; A61B2017/00973; A61B2018/00636; A61B2018/00666; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61F9/00727; A61M; A61M1/00; A61M1/84; A61M1/85

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 71 words
A surgical device, comprising: a handpiece; a motor that is attached to said handpiece; a wobble plate that is connected to said motor; a slider that is coupled to said wobble plate, said slider having a key surface that aligns said slider with said handpiece; an outer sleeve that is coupled to said handpiece; an inner sleeve that is attached to said slider and can move relative to said outer sleeve.
Claim 2
Dependent Claim 71 words
A surgical device, comprising: a handpiece; a motor that is attached to said handpiece; a wobble plate that is connected to said motor; a slider that is coupled to said wobble plate, said slider having a key surface that aligns said slider with said handpiece; an outer sleeve that is coupled to said handpiece; an inner sleeve that is attached to said slider and can move relative to said outer sleeve.
Claim 3
Dependent Claim 31 words
The system as recited in claim 1 , further comprising a controller that aligns said wobble plate with said groove of said slider when said motor is in a start condition.
Claim 4
Dependent Claim 81 words
A surgical device, comprising: an outer sleeve that has an aspiration port which is in fluid communication with an inner channel of said outer sleeve; an inner sleeve that is located within said inner channel, said inner sleeve having a tip that has a circumferential slit and a preexisting bend before insertion into said inner sleeve so that said tip exerts a spring force on said outer sleeve; and, a motor that moves said inner sleeve relative to said outer sleeve.
Claim 5
Dependent Claim 81 words
A surgical device, comprising: an outer sleeve that has an aspiration port which is in fluid communication with an inner channel of said outer sleeve; an inner sleeve that is located within said inner channel, said inner sleeve having a tip that has a circumferential slit and a preexisting bend before insertion into said inner sleeve so that said tip exerts a spring force on said outer sleeve; and, a motor that moves said inner sleeve relative to said outer sleeve.
Claim 6
Dependent Claim 17 words
The device as recited in claim 3 , wherein said inner sleeve has a pair of slits.

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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) 2004-07-09 2005-01-08 2005-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2008-07-09 2009-01-08 2009-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2012-07-09 2013-01-08 2013-07-10 $7700.00 Window Closed / Lapsed

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