Waste evacuation system

• US 6,238,378 B1
• Filed: 04/10/1998
• Issued: 05/29/2001
• Est. Priority Date: 04/11/1997
• Status: Expired due to Fees

• Current Assignee: Francisco Perez
• Original Assignee: Francisco Perez
• Inventors: Perez, Francisco
• Primary Examiner(s): Lewis, Kim M.
• Application Number:
  US09/058,472
• Time in Patent Office: 1,145 Days
• Field of Search: 604/317, 604/345, 604/322, 604/349, 604/119, 604/320, 428/317.1, 528/80
• US Class Current: 604/317
• CPC Class Codes: A61F 5/44 Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aidsabsorbent pads, e.g. sanitary towels, A61F13/15; drainage appliances for wounds A61M27/00; emptying devices for urine bags B65B69/0016; Colostomy devices adhesives for colostomy devices A61L24/00; materials for colostomy devices A61L28/00
• CPC Class Codes: A61F 5/4404 Details or parts
• CPC Class Codes: A61F 5/4408 Means for securing receptacles or bags to the body otherwise than by adhesives, e.g. belts, straps or harnesses A61F5/449 takes precedence

Abstract

A bodily waste evacuation system, particularly adapted for use with an immobile patient, generally comprises a pair of shorts, or other like undergarment-type apparel, and a collection and storage unit in operable and fluid communication with the shorts. The shorts are provided with a plurality of connecting tubes for the removal of bodily wastes and a plurality of connecting tubes for the supply of cleansing liquid and drying air. The collection and storage unit generally comprises a plurality of removable chambers. Each chamber is in fluid communication with the shorts via the connecting tubes. A plurality of separate chambers are utilized for storing waste, liquid waste, and the cleansing fluids. A vacuum operated waste collection system is included, as well as a source of drying air to be diffused upon the patient. There is also a means for heating the cleansing liquid and/or the drying air so that it is assured to be at a desired temperature for patient comfort and increased drying efficacy. A pump is included for supplying the cleansing liquid to the patient'"'"'s rectal and/or genital areas. A microprocessor based timing and control system is utilized in the automation of the invention'"'"'s operation. Those components exclusive of the part and connective tubing portions may be housed in a unified base described as the collection and storage unit.

Claims

1. A method for maintaining a sanitary environment about a bedridden patient, said method comprising the steps of:

automatically detecting the presence of bodily waste excreted by the patient;

diverting detected bodily waste from the patient in automated response to the detection thereof and utilizing a waste removal system adapted to separately divert solid and liquid waste from the patient;

collecting and maintaining the solid and liquid waste removed away from the patient in substantially separate compartments; and

cleansing the patient of remnant bodily wastes after said diverting step.

2. The method as recited in claim 1, wherein said diverting step comprises automatically activating a waste removal system.

3. The method as recited in claim 1, wherein said cleansing step comprises:

providing a cleansing fluid to said area adjacent the patient'"'"'s body; and

providing a drying fluid to said area adjacent the patient'"'"'s body.

4. The method as recited in claim 3, wherein:

said providing a cleansing fluid step comprises supplying a liquid cleanser; and

said providing a drying fluid step comprises supplying heated air.

5. The method as recited in claim 1, wherein said waste removal system further comprises:

a garment adapted for collecting bodily waste from said area adjacent the patient'"'"'s body; and

a collection and storage unit in fluid communication with said garment.

6. The method as recited in claim 5, wherein said garment comprises a pair of shorts having integrated therein a funnel for collecting bodily waste.

7. The method as recited in claim 5, wherein said funnel is adapted for the separate collection of solid waste from the patient'"'"'s rectal area.

8. The method as recited in claim 5, wherein said funnel is adapted for the separate collection of liquid waste from the patient'"'"'s genital area.

9. The method as recited in claim 5, wherein said shorts comprise releasably engageable hook and loop fasteners for removably affixing said shorts to the patient.

10. The method as recited in claim 6, wherein said shorts comprise a polyurethane laminate.

11. The method as recited in claim 10, wherein said funnel is RF-welded to said polyurethane laminate.

12. The method as recited in claim 6, wherein said collection and storage unit comprises:

a plurality of chambers for the separate collection and storage of solid waste, liquid waste, cleansing fluid and drying fluid.

13. The method as recited in claim 12, wherein said chambers are removably engageable with said collection and storage unit.

14. The method as recited in claim 12, wherein said collection and storage unit further comprises a controller.

15. The method as recited claim 14, wherein said controller comprises a microprocessor based control system.

16. The method as recited in claim 14, wherein said controller is adapted to initiate said diverting step in response to detection in said detecting step of the presence of bodily waste excreted by the patient.

17. The method as recited in claim 16, wherein said controller is further adapted to initiate said cleansing step at a time following initiation of said diverting step.

18. A waste evacuation system for maintaining a sanitary environment about a bedridden patient comprising:

a garment adapted for collecting bodily waste from an area adjacent a patient'"'"'s body;

a collection and storage unit in fluid communication with said garment, said storage unit comprising a plurality of chambers for the separate collection and storage of solid waste and liquid waste and storage of cleansing fluid;

a sensor for detecting the excretion of urine or fecal matter;

a vacuum pump in fluid communication with the area adjacent the patient'"'"'s body;

a means for supplying a liquid cleanser to the patient'"'"'s body;

a means for supplying drying air to the patient'"'"'s body; and

a means for heating the liquid cleanser and drying air.

19. The waste evacuation system as recited in claim 18, further comprising a powering system.

20. The waste evacuation system as recited in claim 19, wherein said powering system is a battery pack.

21. The waste collection system as recited in claim 18, wherein said garment comprises a pair of shorts having integrated therein a funnel for collecting bodily waste.

22. The waste collection system as recited in claim 21, wherein said funnel is adapted for the separate collection of solid waste from the patient'"'"'s rectal area.

23. The waste collection system as recited in claim 21, wherein said funnel is adapted for the separate collection of liquid waste from the patient'"'"'s genital area.

24. The waste collection system as recited in claim 21, wherein said shorts comprise:

releasably engageable hook and loop fasteners for removably affixing said shorts to the patient.

25. The waste collection system as recited in claim 21, wherein said shorts comprise:

a polyurethane laminate.

26. The waste collection system as recited in claim 25, wherein said funnel is RF-welded to said polyurethane laminate.

27. The waste collection system as recited in claim 18, wherein said collection and storage unit comprises a plurality of chambers.

28. The waste collection system as recited in claim 27, wherein said chambers are removably engageable with said collection and storage unit.

29. The waste collection system as recited in claim 18, wherein said collection and storage unit further comprises:

a controller.

30. The waste collection system as recited in claim 29, wherein said controller comprises:

a microprocessor based control system.

31. The waste collection system as recited in claim 29, wherein said controller is adapted to initiate said diverting step in response to detection in said detecting step of the presence of bodily waste excreted by the patient.

32. The waste collection system as recited in claim 31, wherein said controller is further adapted to initiate said cleansing step at a time following initiation of said diverting step.

33. A method for maintaining a sanitary environment about a patient, said method comprising the steps of:

automatically detecting the presence of bodily waste excreted by the patient utilizing an automatic detection device free from care-giver initiation;

diverting detected bodily waste from the patient in automated response to the detection thereof utilizing a waste removal system adapted to separately divert solid and liquid waste from the patient; and

cleansing the patient of remnant bodily wastes after said diverting step.

34. A method for maintaining a sanitary environment about a patient, said method comprising the steps of:

automatically detecting the presence of bodily waste excreted by the patient utilizing an automatic detection device free from care-giver initiation; and

diverting detected bodily waste from the patient in automated response to the detection thereof utilizing a waste removal system adapted to separately divert solid and liquid waste from the patient.

35. The method as recited in claim 34, said method further comprising:

collecting and maintaining the solid and liquid waste removed away from the patient in substantially separate compartments.