US3920014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field
Assignee: Individual
•
Filing: 1974-06-03
•
Granted: 1975-11-18
•
Expires: 1994-06-03
Abstract
Abstract A system for controlling the infusion of fluid to an operating field at a selected predetermined pressure, as a counterpart to an instrument for severing material from an object in the field, and for evacuating the severed material from the field in a suspension or emulsion of the infusion fluid. The system includes safety features for preventing a low pressure in the operating field, to thereby prevent a surge of fluid from the field, and referencing infusion and evacuation pressures to that of the operating field. In addition, the basic electrical functions of the entire system are operated by a single control.
Inventors
- 👤 Anton Banko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:16
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00736; A61F9/00763; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/79
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
90 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the infusion fluid, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predetermined measured pressure difference between the evacuated fluid and the infusion fluid for terminating the evacuation of fluid from the operating site.
Claim 2
Independent Claim
90 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the infusion fluid, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predetermined measured pressure difference between the evacuated fluid and the infusion fluid for terminating the evacuation of fluid from the operating site.
Claim 3
Dependent Claim
19 words
A system as in claim 1 further comprising means for visually displaying the measured pressure of the infusion fluid.
Claim 4
Dependent Claim
19 words
A system as in claim 1 further comprising means for visually displaying the measured pressure of the evacuation fluid.
Claim 5
Dependent Claim
27 words
A system as in claim 1 further comprising means for setting said predetermined pressure at which the evacuation of the fluid from the operating site is terminated.
Claim 6
Dependent Claim
35 words
A system as in claim 1 wherein said means for supplying said infusion fluid to and said means for evacuating fluid from said operating site include a portion of said instrument at the operating site.
Claim 7
Dependent Claim
20 words
A system as in claim 1 wherein said means for evacuating fluid from the operating site includes a peristaltic pump.
Claim 8
Independent Claim
115 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, and means including second control means and a portion of said means for evacuating fluid from the operating site in fluid communication with said evacuation means to supply a further fluid through said instrument to said operating site.
Claim 9
Independent Claim
115 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, and means including second control means and a portion of said means for evacuating fluid from the operating site in fluid communication with said evacuation means to supply a further fluid through said instrument to said operating site.
Claim 10
Dependent Claim
51 words
A system as in claim 7 wherein said instrument includes a motor for rotating at least a part of said operative portion of said instrument, means for stopping said motor and operating said first and second control means to supply siad infusion fluid and said further fluid to said operating site.
Claim 11
Dependent Claim
52 words
A system as in claim 7 wherein said instrument includes a motor for rotating at least a part of said operative portion of said instrument, means for rotating said motor in a second direction and operating said first and second control means to supply only said further fluid to said operating site.
Claim 12
Dependent Claim
51 words
A system as in claim 7 wherein said instrument includes a motor for rotating at least a part of said operative portion of said instrument, means for stopping said motor and operating said first and second control means to supply said infusion fluid and said further fluid to said operating site.
Claim 13
Dependent Claim
52 words
A system as in claim 7 wherein said instrument includes a motor for rotating at least a part of said operative portion of said instrument, means for rotating said motor in a second direction and operating said first and second control means to supply only said further fluid to said operating site.
Claim 14
Dependent Claim
83 words
Apparatus as in claim 7 further comprising means for operating said first and second control means to selectively: a. open said first and second control means to permit the supply of both said infusion fluid and said further fluid to said operating site, b. to open only said first control means to permit only the supply of infusion Fluid to said site, or c. to open only said second control means to permit only the supply of the further fluid to said site.
Claim 15
Dependent Claim
73 words
Apparatus as in claim 12 further comprising a reversible motor for a part of the operative portion of said instrument, said operating means includes means for a. stopping said motor when both said first and second control means are open, b. rotating said motor in a first direction when only said first control means is open, and c. rotating said motor in a second direction when only said second control means is open.
Claim 16
Independent Claim
76 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the infusion means for measuring the pressure of the evacuated fluid and other material, and means for referencing the pressures measured to the pressure at the operating site.
Claim 17
Independent Claim
76 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the infusion means for measuring the pressure of the evacuated fluid and other material, and means for referencing the pressures measured to the pressure at the operating site.
Claim 18
Dependent Claim
34 words
A system as in claim 14 further comprising means responsive to a predetermined measured pressure difference between the evacuated fluid and the infusion fluid for terminating the evacuation of fluid from the operating site.
Claim 19
Dependent Claim
20 words
A system as in claim 15 wherein said means for evacuating fluid from the operating site includes a peristaltic pump.
Claim 20
Independent Claim
96 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for measuring the pressure of said infusion fluid, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for measuring the pressure of the evacuated fluid, and means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid.
Claim 21
Independent Claim
96 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for measuring the pressure of said infusion fluid, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for measuring the pressure of the evacuated fluid, and means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid.
Claim 22
Dependent Claim
55 words
A system as in claim 17 wherein said instrument includes a motor for rotating at least a part of said operative portion of said instrument, means for controlling the rotation of said motor in a first direction with said first control means open to permit the infusion fluid to be supplied to the operating site.
Claim 23
Dependent Claim
44 words
Apparatus as in claim 17 further comprising means including second control means and a portion of said means for evacuating fluid from the operating site in fluid communication with said evacuation means to supply a further fluid through said instrument to said operating site.
Claim 24
Dependent Claim
83 words
Apparatus as in claim 19 further comprising means for operating said first and second control means to selectively: a. open said first and second control means to permit the supply of both said infusion fluid and said further fluid to said operating site, b. to open only said first control means to permit only the supply of infusion fluid to said site, or c. to open only said second control means to permit only the supply of the further fluid to said site.
Claim 25
Dependent Claim
73 words
Apparatus as in claim 9 further comprising a reversible motor for a part of the operative portion of said instrument, said operating means includes means for: a. stopping said motor when both said first and second control means are open, b. rotating said motor in a first direction when only said first control means is open, and c. rotating said motor in a second direction wherein only said second control means is open.
Claim 26
Independent Claim
72 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predeteRmined measured pressure for terminating the evacuation of fluid from the operating site.
Claim 27
Independent Claim
72 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predeteRmined measured pressure for terminating the evacuation of fluid from the operating site.
Claim 28
Dependent Claim
20 words
Apparatus as in claim 22 further comprising means for setting the predetermined measured pressure at which the evacuation is stopped.
Claim 29
Independent Claim
88 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the evacuated fluid and other material, means responsive to a predetermined measured pressure for terminating the evacuation of fluid from the operating site, and means for building up the pressure in said means for evacuation after the evacuation is terminated.
Claim 30
Independent Claim
88 words
A system for use with a surgical instrument having an operative part at an operating site comprising: means for supplying an infusion fluid under pressure to said operating site, means for evacuating fluid with other material entrained therein from said operating site, means for measuring the pressure of the evacuated fluid and other material, means responsive to a predetermined measured pressure for terminating the evacuation of fluid from the operating site, and means for building up the pressure in said means for evacuation after the evacuation is terminated.
Claim 31
Dependent Claim
20 words
Apparatus as in claim 24 further comprising means for reversing the flow of fluid and material in said evacuation means.
Claim 32
Dependent Claim
20 words
Apparatus as in claim 24 further comprising means for venting said evacuation to another pressure after the evacuation is terminated.
Claim 33
Dependent Claim
13 words
Apparatus as in claim 25 wherein the venting takes place at atmosphereic pressure.
Claim 34
Independent Claim
123 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, a motor for rotating at least a part of said operative portion of said instrument, and means for controlling the rotation of said motor in a first direction with said first control means open to permit the infusion fluid to be supplied to the operating site.
Claim 35
Independent Claim
123 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, a motor for rotating at least a part of said operative portion of said instrument, and means for controlling the rotation of said motor in a first direction with said first control means open to permit the infusion fluid to be supplied to the operating site.
Claim 36
Independent Claim
125 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, means for measuring the pressure of the infusion fluid, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predetermined measured pressure difference between the evacuated fluid and the infusion fluid for terminating the evacuation of fluid from the operating site.
Claim 37
Independent Claim
125 words
A system for use with a surgical instrument having an operative portion at an operating site comprising: means including first control means for supplying an infusion fluid under pressure through said instrument to said operating site, means for evacuating fluid with material entrained therein from said operating site through said instrument, means for selectively operating said first control means to open and close said control means to thereby permit or stop the supply of the infusion fluid, means for measuring the pressure of the infusion fluid, means for measuring the pressure of the evacuated fluid and other material, and means responsive to a predetermined measured pressure difference between the evacuated fluid and the infusion fluid for terminating the evacuation of fluid from the operating site.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |