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US4753248A Expired / Lapsed US ⏱️ 0.0 years remaining

Probe translation system for use in hyperthermia treatment

Assignee: Duke University
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Filing: 1987-06-24
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Granted: 1988-06-28
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Expires: 2007-06-24
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Abstract

Abstract An automated temperature scanning system for monitoring hyperthermia treatment has a linear drive assembly operatively connected to a non-rotational extended-length screw shaft which is linearly translated by a stepper motor. A first tube having a thermometric probe concentrically positioned therein is fixedly secured to the linear drive assembly so as to be motivated thereby. A second tube is secured at one end to an interstitial catheter and is adapted to be at least partially slidably received within the first tube so that linear movement of the first tube toward the second tube slidably moves the thermometric probe within the second tube and an interstitial catheter associated therewith. A computer is electrically connected to the stepper motor to control the movement of the thermometric probe utilizing real time data generated thereby.

Inventors

  • 👤 Mark J. Engler
  • 👤 James R. Oleson
  • 👤 Mark W. Dewhirst

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:42
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14; G01K1/146; A; A61; A61F; A61F7/00; A61B; A61B34/00; A61B34/30; A61B2034/301

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 193 words
An automated temperature scanning system for monitoring hyperthermia treatment and the like comprising; a base; a support having two ends, said support secured at one end to said base; means for mounting a motor and drive assembly secured to the other end of said support; a motor secured to said mounting means; a linear drive assembly operatively connected to said motor; a thermometer translation assembly operatively connected to said linear drive assembly and comprising: a first tube secured to said linear drive assembly and adapted for linear motivation thereby, said first tube having a thermometric probe secured thereto and positioned substantially concentrically therein; a second tube having two ends, one end of said second tube being slidably received and said second tube being at least partially slidably received by said first tube, and said second tube adapted at the other end to be secured to a catheter, so that linear motivation of said first tube toward said second tube causes the thermometric probe to be slidably moved within said second tube and said catheter; and control means electrically connected to said motor for controlling the insertion of the thermometric probe into said catheter.
Claim 2
Dependent Claim 193 words
An automated temperature scanning system for monitoring hyperthermia treatment and the like comprising; a base; a support having two ends, said support secured at one end to said base; means for mounting a motor and drive assembly secured to the other end of said support; a motor secured to said mounting means; a linear drive assembly operatively connected to said motor; a thermometer translation assembly operatively connected to said linear drive assembly and comprising: a first tube secured to said linear drive assembly and adapted for linear motivation thereby, said first tube having a thermometric probe secured thereto and positioned substantially concentrically therein; a second tube having two ends, one end of said second tube being slidably received and said second tube being at least partially slidably received by said first tube, and said second tube adapted at the other end to be secured to a catheter, so that linear motivation of said first tube toward said second tube causes the thermometric probe to be slidably moved within said second tube and said catheter; and control means electrically connected to said motor for controlling the insertion of the thermometric probe into said catheter.
Claim 3
Dependent Claim 14 words
An automated temperature scanning system according to claim 1 wherein said base is magnetized.
Claim 4
Dependent Claim 20 words
An automated temperature scanning system according to claim 1 wherein said support comprises a plurality of relatively pivotably movable segments.
Claim 5
Dependent Claim 26 words
An automated temperature scanning system according to claim 1 wherein said mounting means includes a cylinder supporting said linear drive assembly and said thermometer translation assembly.
Claim 6
Dependent Claim 36 words
An automated temperature scanning system according to claim 1 wherein said motor comprises a stepper motor having an extended length non-rotating screw shaft therethrough which is linearly motivated by a rotating armature within said stepper motor.
Claim 7
Dependent Claim 63 words
An automated temperature scanning system according to claim 5 wherein said linear drive assembly comprises a plug element secured to one end of said screw shaft extending through said stepper motor, said plug element also being fixedly secured to said first tube so as to effectuate linear movement thereof corresponding to the linear movement of said screw shaft effectuated by said stepper motor.
Claim 8
Dependent Claim 49 words
An automated temperature scanning system according to claim 6 wherein said linear drive assembly includes magnetic means carried by said plug element and reed switch means associated with said mounting means and electrically connected to said stepper motor to limit the length of linear movement of said plug element.
Claim 9
Dependent Claim 26 words
An automated temperature scanning system according to claim 1 wherein said first tube of said thermometer translation assembly is of greater diameter than said second tube.
Claim 10
Dependent Claim 52 words
An automated temperature scanning system according to claim 8 wherein said thermometer translation assembly includes a third tube concentrically positioned within and secured to said first tube so as to surround said thermometric probe therein, said third tube being substantially coextensive with said first tube and slidably received within said second tube.
Claim 11
Dependent Claim 26 words
An automated temperature scanning system according to claim 1 wherein said first tube of said thermometric translation assembly is of smaller diameter than said second tube.
Claim 12
Dependent Claim 55 words
An automated temperature scanning system according to claim 10 wherein said thermometer translation assembly includes a third tube concentrically positioned within and secured to said second tube so as to surround said thermometric probe therein, said third tube being substantially coextensive with said second tube and adapted to be slidably received within said first tube.
Claim 13
Dependent Claim 46 words
An automated temperature scanning system according to claim 1 wherein said control means comprises a computer adapted to give real time feedback control and display of scan parameters comprising temperature (T), temperature difference between points (ΔT), position (r), spacing (Δr), time (t) and dwell time (Δt).
Claim 14
Dependent Claim 240 words
An automated temperature scanning system for monitoring hyperthermia treatment and the like comprising; a base; an adjustable support arm having two ends, said support arm secured at one end to said base; means for mounting a motor and drive assembly secured to the other end of said support arm; a stepper motor having an extended length screw shaft therethrough, said stepper motor being secured to said mounting means; a linear drive assembly operatively connected to said motor, said drive assembly including a plug element secured to one end of said screw shaft of said stepper motor and adapted to slidably move along a linear pathway; a thermometer translation assembly operatively connected to said linear drive assembly and comprising: a first tube secured to said plug element of said linear drive assembly and adapted for linear motivation thereby, said first tube having a thermometric probe secured thereto and substantially concentrically positioned therein; a second tube having two ends, one end of said second tube being slidably received and said tube being at least partially slidably received by said first tube, and said second tube adapted at the other end to be secured to a catheter, so that linear motivation of said first tube toward said second tube causes the thermometric probe to be slidably moved within said second tube and said catheter; and computer means electrically connected to said motor for controlling the insertion of the thermometric probe into said catheter.
Claim 15
Dependent Claim 240 words
An automated temperature scanning system for monitoring hyperthermia treatment and the like comprising; a base; an adjustable support arm having two ends, said support arm secured at one end to said base; means for mounting a motor and drive assembly secured to the other end of said support arm; a stepper motor having an extended length screw shaft therethrough, said stepper motor being secured to said mounting means; a linear drive assembly operatively connected to said motor, said drive assembly including a plug element secured to one end of said screw shaft of said stepper motor and adapted to slidably move along a linear pathway; a thermometer translation assembly operatively connected to said linear drive assembly and comprising: a first tube secured to said plug element of said linear drive assembly and adapted for linear motivation thereby, said first tube having a thermometric probe secured thereto and substantially concentrically positioned therein; a second tube having two ends, one end of said second tube being slidably received and said tube being at least partially slidably received by said first tube, and said second tube adapted at the other end to be secured to a catheter, so that linear motivation of said first tube toward said second tube causes the thermometric probe to be slidably moved within said second tube and said catheter; and computer means electrically connected to said motor for controlling the insertion of the thermometric probe into said catheter.
Claim 16
Dependent Claim 14 words
An automated temperature scanning system according to claim 13 wherein said base is magnetized.
Claim 17
Dependent Claim 21 words
An automated temperature scanning system according to claim 13 wherein said support arm comprises a plurality of relatively pivotably movable segments.
Claim 18
Dependent Claim 52 words
An automated temperature scanning system according to claim 13 wherein said mounting means includes a cylinder supporting said linear drive assembly and said thermometer translation assembly and having at least one longitudinally extending guide slot to define the linear pathway of movement of said plug element and said first tube secured thereto.
Claim 19
Dependent Claim 31 words
An automated temperature scanning system according to claim 13 wherein said stepper motor comprises a non-rotating screw shaft therethrough which is linearly motivated by a rotating armature within said stepper motor.
Claim 20
Dependent Claim 50 words
An automated temperature scanning system according to claim 17 wherein said linear drive assembly further includes magnetic means carried by said plug element and reed switch means associated with said mounting means and electrically connected to said stepper motor to limit the length of linear movement of said plug element.
Claim 21
Dependent Claim 25 words
An automated temperature scanning system according to claim I3 wherein said first tube of said thermometer translation assembly is of greater diameter than said second.
Claim 22
Dependent Claim 52 words
An automated temperature scanning system according to claim 13 wherein said thermometer translation assembly includes a third tube concentrically positioned within and secured to said first tube so as to surround said thermometric probe therein, said third tube being substantially coextensive with said first tube and slidably received within said second tube.
Claim 23
Dependent Claim 26 words
An automated temperature scanning system according to claim 13 wherein said first tube of said thermometric translation assembly is of smaller diameter than said second tube.
Claim 24
Dependent Claim 52 words
An automated temperature scanning system according to claim 13 wherein said thermometer translation assembly includes a third tube concentrically positioned within and secured to said second tube so as to surround said thermometric probe therein, said third tube being substantially coextensive with said second tube and slidably received within said first tube.
Claim 25
Dependent Claim 44 words
An automated temperature scanning system according to claim 13 wherein said computer means is adapted to give real time feedback control and display of scan parameters comprising temperature (T), temperature difference between points (ΔT), position (r), spacing (Δr), time (t) and dwell time (Δt).

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-06-28 1991-12-28 1992-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-06-28 1995-12-28 1996-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-06-28 1999-12-28 2000-06-28 $7700.00 Window Closed / Lapsed

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