Waste collection unit

Patent metadata

Field	Value
Publication number	US-11160909-B2
Application number	US-201616065440-A
Country	US
Kind code	B2
Filing date	Dec 20, 2016
Priority date	Dec 24, 2015
Publication date	Nov 2, 2021
Grant date	Nov 2, 2021

Abstract

A waste collection unit is provided that comprises a vacuum pump and smoke evacuation system including a blower and blower motor. The vacuum pump, the blower, and the blower motor, create noise. This noise is attenuated in first and second sound attenuating enclosures for the vacuum pump and the blower and blower motor. A cleaning system is also provided with rotating liquid delivery devices. An actuator is operatively coupled to the liquid delivery devices to rotate the liquid delivery devices.

First claim

What is claimed is:

1. A waste collection unit for collecting waste material through a suction line during a medical procedure, said waste collection unit comprising:
a waste container configured to be in fluid communication with the suction line to collect the waste material during the medical procedure, said waste container having an internal surface defining a collection chamber;
a vacuum source in selective communication with said waste container for providing a vacuum in said waste container to draw the waste material into said waste container through the suction line; and
a cleaning system comprising liquid delivery devices rotatably supported relative to said waste container, said liquid delivery devices configured to direct liquid on said internal surface,
wherein said cleaning system comprising an actuator operatively coupled to said liquid delivery devices for rotating said liquid delivery devices relative to said waste container to vary a direction in which the liquid is directed on said internal surface,
wherein said cleaning system further comprises a gear arrangement operatively coupling said actuator to said liquid delivery devices so that said liquid delivery devices rotate at different rotational speeds.

2. The waste collection unit of claim 1 , wherein each of said liquid delivery devices comprises a spray nozzle.

3. The waste collection unit of claim 2 , wherein said spray nozzles are replaceable.

4. The waste collection unit of claim 2 , wherein each of said spray nozzles are configured to provide a spray pattern with a spray angle subtended by the spray pattern of at least eighty degrees.

5. The waste collection unit of claim 2 , wherein each of said spray nozzles are configured to discharge a flat spray pattern.

6. The waste collection unit of claim 2 , wherein said spray nozzles are configured to discharge spray patterns that impact said internal surface at different locations.

7. The waste collection unit of claim 6 , wherein a first of said spray nozzles is configured to discharge a first spray pattern at an upper portion of said internal surface and a second of said spray nozzles is configured to discharge a second spray pattern at a lower portion of said internal surface.

8. The waste collection unit of claim 1 , wherein said actuator comprises a variable speed motor, and wherein said waste collection unit further comprises a current sensor in communication with said variable speed motor for monitoring current drawn by said variable speed motor and detecting whether said variable speed motor is in a stalled condition.

9. The waste collection unit of claim 1 , further comprising a cap coupled to said waste container wherein said liquid delivery devices and said actuator are supported by said cap.

10. The waste collection unit of claim 1 , wherein said cleaning system further comprises a manifold directing the liquid from a liquid source to said liquid delivery devices, the manifold comprising an inlet for receiving the liquid from the liquid source, a pair of openings through which the liquid enters said liquid delivery devices, and a main flow passage to carry the liquid from said inlet to said pair of openings.

11. The waste collection unit of claim 10 , wherein said cleaning system further comprises a check valve disposed in said main flow passage to separate said pair of openings.

12. The waste collection unit of claim 11 , wherein said cleaning system further comprises a prefill port in communication with said main flow passage to receive prefill liquid from a prefill liquid source with said check valve located so that the prefill liquid is unable to pass through both of said pair of openings into both of said liquid delivery devices.

13. The waste collection unit of claim 1 , comprising a portable cart supporting said waste container, said vacuum source, and said cleaning system.

14. A waste collection unit for collecting waste material through a suction line during a medical procedure, said waste collection unit comprising:
a waste container configured to be in fluid communication with the suction line to collect the waste material during the medical procedure, said waste container having an internal surface defining a collection chamber;
a vacuum source in selective communication with said waste container for providing a vacuum in said waste container to draw the waste material into said waste container through the suction line; and
a cleaning system comprising first and second liquid delivery devices disposed within said collection chamber and each rotatably supported relative to said waste container, and an actuator operatively coupled to said first and second liquid delivery devices for rotating said first and second liquid delivery devices to discharge spray patterns that impact said internal surface at different locations,
wherein said first liquid delivery device is configured to discharge a first spray pattern at an upper portion of said internal surface and said second liquid delivery device is configured to discharge a second spray pattern at a lower portion of said internal surface,
wherein said cleaning system further comprises a gear arrangement operatively coupled to said first and second liquid delivery devices with said gear arrangement configured to rotate said first and second liquid delivery devices at different rotational speeds.

15. The waste collection unit of claim 14 , further comprising a controller in communication with said actuator.

16. The waste collection unit of claim 14 , wherein said actuator comprises a variable speed motor, and wherein said waste collection unit further comprises a current sensor in communication with said variable speed motor for monitoring current drawn by said variable speed motor and detecting whether said variable speed motor is in a stalled condition.

17. The waste collection unit of claim 14 , wherein said cleaning system further comprises a manifold directing the liquid from a liquid source to said first and second liquid delivery devices, the manifold comprising an inlet for receiving the liquid from the liquid source, a pair of openings through which the liquid enters said first and second liquid delivery devices, and a main flow passage to carry the liquid from said inlet to said pair of openings.

18. The waste collection unit of claim 17 , wherein said cleaning system further comprises a check valve disposed in said main flow passage to separate said pair of openings.

19. A waste collection unit for collecting waste material through a suction line during a medical procedure, said waste collection unit comprising:
a waste container configured to be in fluid communication with the suction line to collect the waste material during the medical procedure, said waste container having an internal surface defining a collection chamber;
a vacuum source in selective communication with said waste container for providing a vacuum in said waste container to draw the waste material into said waste container through the suction line; and
a cleaning system comprising first and second liquid delivery devices disposed within said collection chamber and each rotatably supported relative to said waste container, and an actuator operatively coupled to said first and second liquid delivery devices for rotating said first and second liquid delivery devices to discharge spray patterns that impact said internal surface at different locations,
wherein said first liquid delivery device is configured to discharge a first spray pattern at an upper portion of said interna

Assignees

• Stryker Corp

Inventors

• Davie Daniel
• Zollinger Michael
• Maclachlan Brian
• Isham Stephen
• Edinger Benjamin
• Durnell Troy

Classifications

• A61M1/88

  Draining devices having means for processing the drained fluid, e.g. an absorber (for liposuction A61M1/892) · CPC title

• A61M1/65

  the suction means being electrically actuated · CPC title

• A61M1/63 Primary

  with means for emptying the suction container, e.g. by interrupting suction · CPC title

• A61M1/80

  Suction pumps (A61M1/64, A61M1/71, A61M60/00 take precedence) · CPC title

• A61M1/77

  Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463) · CPC title