Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field

• US 3,920,014 A
• Filed: 06/03/1974
• Issued: 11/18/1975
• Est. Priority Date: 12/15/1971
• Status: Expired due to Term

• Current Assignee: Anton Banko
• Original Assignee: Anton Banko
• Inventors: Banko, Anton
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Yasko, J.
• Application Number:
  US05/475,398
• Time in Patent Office: 533 Days
• Field of Search: 128/230,276,277,278,2A 137/205
• US Class Current: 604/31
• CPC Class Codes: A61F 9/00763 with rotating or reciprocating cutting elements, e.g. concentric cutting needles atherectomy cutting instruments A61B17/3207; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/79 Filters for solid matter specially adapted for dental use A61C17/065

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.

Claims

1. 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.

2. A system as in claim 1 further comprising means for visually displaying the measured pressure of the infusion fluid.

3. A system as in claim 1 further comprising means for visually displaying the measured pressure of the evacuation fluid.

4. 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.

5. 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.

6. A system as in claim 1 wherein said means for evacuating fluid from the operating site includes a peristaltic pump.

7. 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.

8. 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.

9. 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.

10. 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.

11. 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.

12. 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.

13. 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.

14. 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.

15. 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.

16. A system as in claim 15 wherein said means for evacuating fluid from the operating site includes a peristaltic pump.

17. 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.

18. 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.

19. 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.

20. 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.

21. 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.

22. 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.

23. Apparatus as in claim 22 further comprising means for setting the predetermined measured pressure at which the evacuation is stopped.

24. 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.

25. Apparatus as in claim 24 further comprising means for reversing the flow of fluid and material in said evacuation means.

26. Apparatus as in claim 24 further comprising means for venting said evacuation to another pressure after the evacuation is terminated.

27. Apparatus as in claim 25 wherein the venting takes place at atmosphereic pressure.

28. 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.

29. 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.