Method for aspirating liquid from surgical operating room floors

• US 5,032,184 A
• Filed: 08/31/1990
• Issued: 07/16/1991
• Est. Priority Date: 11/15/1989
• Status: Expired due to Term

• Current Assignee: Linvatec Corporation (Jefferies Financial Group, Inc.)
• Original Assignee: Concept, Inc. (Bristol-Myers Squibb Company)
• Inventors: Winkler, Rance A., Ogilvie, Rick A.
• Primary Examiner(s): Morris, Theodore
• Assistant Examiner(s): CHAUDHRY, SAEED T
• Application Number:
  US07/575,565
• Time in Patent Office: 319 Days
• Field of Search: 134/21, 15/227, 15/353, 15/393, 15/401
• US Class Current: 134/21
• CPC Class Codes: A47L 5/38 Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
• CPC Class Codes: A47L 7/0009 with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
• CPC Class Codes: A47L 9/06 with fixed, e.g. adjustably fixed brushes or the like
• CPC Class Codes: A47L 9/0613 with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads

Abstract

A method and apparatus for aspirating fluids from a surgical operating room utilizing a suction head that readily slides along the floor in response to translational forces applied by foot by operating room personnel. The suction head has a flat bottom surface with a plurality of narrow flow channels defined therein between a suction port mouth and the surface periphery. Support ribs, disposed on the top surface in juxtaposed alignment with respective flow channels, impart strength to the suction head and prevent sealing of the flow channels. The suction head is adapted to operate with suction sources commonly available in surgical operating rooms operating through a fluid waste collection chamber. The flow channels conduct fluid to be aspirated while preventing the bottom surface from becoming sealed to the floor.

Claims

1. The method of aspirating waste fluid material from a floor or similar surface in a surgical operating room comprising the steps of:

(a) connecting a fluid suction head to a source of negative pressure;

(b) placing said suction head on said floor;

(c) positionally sliding said suction head along said floor by applying translational forces thereto with a foot of an operator; and

(d) aspirating fluid through said suction head toward said source along recessed flow channels defined in the bottom surface of said suction head.

2. The method according to claim 1 further including the step of disposing of said suction head after use in only a single surgical operation.

3. The method according to claim 1 wherein step (a) includes connecting said suction head to a source of negative pressure having a magnitude of approximately 300 millimeters of mercury.

4. The method according to claim 3 wherein step (a) includes aspirating the fluid at a flow rate in the range of approximately 600 to 750 ml/minute.

5. The method according to claim 3 further comprising the step of collecting the waste fluid material aspirated in step (b) in a waste collection chamber connected in flow communication between said source and said suction head.

6. The method according to claim 1 wherein step (b) includes aspirating the fluid through said flow channels in a plurality of radial directions from the periphery to the center of the bottom surface of said suction head.

7. The method of aspirating waste liquid from a surgical operating room floor comprising the steps of:

(a) applying suction to a suction head; and

(b) by means of translational forces applied by a foot of a person, positioning said suction head along the surgical operating room floor to permit the suction at the suction head to draw the waste liquid away from the floor.

8. The method according to claim 7, further comprising the step of deriving said suction from a wall suction port in the surgical operating room.

9. The method according to claim 8 wherein the pressure of said suction is on the order to 300 mm of mercury below atmospheric pressure.

10. The method according to claim 8 wherein step (a) comprises the steps of:

(a.1) connecting a first fluid conduit between said wall suction portion and an outlet port of a waste collection chamber; and

(a.2) connecting a flexible hose between a suction supply port of said suction head and an inlet port of said waste collection chamber;

such that suction from said wall suction port is applied to the suction supply port of said suction head through said waste collection chamber and said flexible hose to thereby draw waste liquid from said floor through said suction head and flexible hose into said waste collection chamber to permit waste liquid to fall into said waste collection chamber.

11. The method according to claim 7 wherein step (b) includes drawing the waste liquid through flow channels recessed in a bottom surface of said suction head.

12. The method according to claim 7 further comprising the step of disposing of said suction head after use in only a single surgical procedure.

13. The method according to claim 7 wherein fluid is drawn through said suction head and flexible hose at a flow rate in the range of approximately 600 to 750 ml/minute.

14. The method of aspirating waste liquid from a floor in a surgical operating room comprising the steps of:

(a) applying suction to said floor via a suction head connected to a flexible hose to draw matter from said floor through said suction head and said flexible hose;

(b) selectively translating said suction head along said floor by means of foot-applied translational forces imparted to the suction head by surgical operating room personnel; and

(c) collecting waste liquid drawn from said floor through said suction head and flexible hose.

15. The method according to claim 14 wherein step (c) includes collecting said waste liquid in a waste collection chamber, said method further comprising the steps of:

connecting said flexible hose between a suction portion of said suction head and an inlet port of said waste collection chamber located above the bottom of the chamber;

connecting a fluid conduit between a source of said suction and an outlet port of said waste collection chamber located above the bottom of said chamber; and

in response to said suction, flowing air through said waste collection chamber from said inlet port to said outlet port while permitting waste liquid that is carried by the air to fall to the bottom of the chamber.

16. The method according to claim 15 further comprising the step of providing said suction via a wall suction port whereby said fluid conduit is connected between the wall suction portion and the outlet port of said chamber.

17. The method according to claim 16 further comprising the step of providing said suction at a pressure on the order of 300 mm of mercury below atmospheric pressure.

18. The method according to claim 17 wherein step (a) includes drawing matter through said flexible hose at a flow rate in the range of approximately 600 to 750 ml/minute.

19. The method according to claim 14 further including the step of disposing of said suction head after use in only a single surgical procedure.

20. The method according to claim 14 wherein step (a) includes drawing matter from said floor through flow channels recessed in a bottom surface of said suction head.