# US 6,665,888 B1 · Portable colon irrigator

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- Number: US 6,665,888 B1
- Document ID: US6665888B1
- Status: Granted
- Kind: B1
- Application number: 10/290,783
- Filed: 2002-11-12
- Granted: 2003-12-23
- Earliest claimed: 2002-11-12
- Inventors: Hughes H. Kwak
- Web page: https://patentgrep.com/patent/US6665888B1

## CPC

- E03D 9/08: Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting}
- A61M 3/0208: {before use}
- A61M 3/0216: {Pressure}
- A61M 3/022: {Volume; Flow rate}
- A61M 3/0225: {Devices on which the patient can sit, e.g. mounted on a toilet bowl (combined with bidets A61M3/06); Devices containing liquid pumped by the patient's weight}
- A61M 3/0241: {the liquid being supplied by gravity}
- A61M 3/0262: {manually, e.g. by squeezing a bulb}
- E03D: WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A portable colon irrigator is provided. The colon irrigator includes a manually operated pump, a first hose connecting the manually operated pump and a water source, a water ejector having an ejector body and an irrigating nozzle attached to the ejector body for being inserted into the anus of a user, a second hose connecting the manually operated pump and the ejector body, and two wings attached to the ejector body. The manually operated pump provides pressure to eject water from the irrigating nozzle and prevents backflow from the second hose, and the wings rest on a toilet. The colon irrigator may further include a branching valve and spraying nozzles so that it may also used as a bidet.

## Claims

### Claim 1

A portable colon irrigator comprising:
a) a manually operated pump;
b) a first hose connecting the manually operated pump and a water source;
c) a water ejector having an ejector body and an irrigating nozzle attached to the ejector body for being inserted into the anus of a user;
d) a second hose connecting the manually operated pump and the ejector body; and
e) one or more wings attached to the ejector body; wherein the manually operated pump provides pressure to eject water from the irrigating nozzle and prevents backflow from the second hose, and wherein the wings rest on a toilet.

### Claim 2 (depends on 1)

The portable colon irrigator of claim 1, wherein each of the wings comprise a wire having a shape of rotated “U”, and wherein the wire has two ends that are attached to the ejector body.

### Claim 3 (depends on 2)

The portable colon irrigator of claim 2, wherein the wire has bent portions near the ends to position the ejector body lower than a seat of the toilet.

### Claim 4 (depends on 1)

The portable colon irrigator of claim 1, further comprising a water tank as the water source.

### Claim 5 (depends on 1)

The portable colon irrigator of claim 1, wherein the ejector body further includes a first cavity that guides water flow from the second hose to the irrigating nozzle.

### Claim 6 (depends on 1)

The portable colon irrigator of claim 1, wherein the water ejector further includes one or more spraying nozzles.

### Claim 7 (depends on 6)

The portable colon irrigator of claim 6, further comprising a branching valve that is installed between the second hose and the ejector body, wherein the branching valve includes a valve body and a selector, wherein the valve body includes a circular chamber, a flow-in conduit connected to the chamber, a first flow-out conduit connected to the chamber, and a second flow-out conduit connected the chamber, wherein the selector guides water flow from the flow-in conduit to the first flow-out conduit or the second flow-out conduit.

### Claim 8 (depends on 7)

The portable colon irrigator of claim 7, wherein the selector has a shape of cylinder and is rotationally received in the chamber, wherein the selector has a selector cavity, a first hole, a second hole, a third hole and a fourth hole, wherein the first hole, the second hole and the third hole are provided near one end of the selector cavity, wherein the fourth hole is provided near the other end of the selector cavity, wherein the first hole is positioned perpendicular with the second hole, and the second hole is positioned perpendicular with the third hole, wherein the fourth hole is parallel with the second hole, whereby when the first hole is aligned with the flow-in conduit, the third hole is aligned with the first flow-out conduit, and the second hole and the fourth hole are blocked by the wall of the chamber so that water flows out through the first flow-out conduit, whereby when the second hole is aligned with the flow-in conduit, the fourth hole is aligned with the second flow-out conduit, and the first hole and the third hole are blocked by the wall of the chamber so that water flows out through the second flow-out conduit.

### Claim 9 (depends on 8)

The portable colon irrigator of claim 8, wherein the valve body has a rectangular recess, wherein the selector further has a handle for rotating the selector, and a projection in the manner that the projection moves in the rectangular recess when the selector is rotated such that rotation of the selector is limited up to 90 degrees.

### Claim 10 (depends on 7)

The portable colon irrigator of claim 7, further comprising a third hose and a fourth hose, wherein the third hose and the fourth hose connect the first and second flow-out conduits of the branching valve and the ejector body.

### Claim 11 (depends on 10)

The portable colon irrigator of claim 10, wherein the ejector body further includes a first cavity that guides water flow from the third hose to the irrigating nozzle, and a second cavity that guides water flow from the fourth hose to the spraying nozzles.

### Claim 12 (depends on 11)

The portable colon irrigator of claim 11, wherein the manually operated pump includes an elastic tube, a top check valve that is installed at the upstream end of the elastic tube, and a bottom check valve that is installed at the downstream end of the elastic tube, and wherein the top and bottom check valves prevent reverse water flow.

### Claim 13 (depends on 1)

The portable colon irrigator of claim 1, wherein the manually operated pump includes an elastic tube, a top check valve that is installed at the upstream end of the elastic tube, and a bottom check valve that is installed at the downstream end of the elastic tube, and wherein the top and bottom check valves prevent reverse water flow.

### Claim 14 (depends on 13)

The portable colon irrigator of claim 13, wherein the top check valve has a ball and a stop portion that limits the upstream movement of the ball, and a bottom holding sleeve that limits the downstream movement of the ball, wherein the top stop portion has a circular cross section and the bottom holding sleeve has a circular cross section and one or more channels along the cross section so that when the ball contacts with the top stop portion, water flow is blocked, and when the ball contacts with the bottom holding sleeve, water can flow through the channels, wherein the bottom check valve has a ball and a top holding sleeve that limits the upstream movement of the ball, and a bottom stop portion that limits the downstream movement of the ball, wherein the top holding sleeve has a circular cross section and the bottom stop portion has a circular cross section and one or more channels along the cross section so that when the ball contacts with the top holding sleeve, water flow is blocked, and when the ball contacts with the bottom stop portion, water can flow through the channels.

### Claim 15 (depends on 12)

The portable colon irrigator of claim 12, wherein the top check valve has a ball and a stop portion that limits the upstream movement of the ball, and a bottom holding sleeve that limits the downstream movement of the ball, wherein the top stop portion has a circular cross section and the bottom holding sleeve has a circular cross section and one or more channels along the cross section so that when the ball contacts with the top stop portion, water flow is blocked, and when the ball contacts with the bottom holding sleeve, water can flow through the channels, wherein the bottom check valve has a ball and a top holding sleeve that limits the upstream movement of the ball, and a bottom stop portion that limits the downstream movement of the ball, wherein the top holding sleeve has a circular cross section and the bottom stop portion has a circular cross section and one or more channels along the cross section so that when the ball contacts with the top holding sleeve, water flow is blocked, and when the ball contacts with the bottom stop portion, water can flow through the channels.

### Claim 16 (depends on 15)

The portable colon irrigator of claim 15 wherein each of the wings comprise a wire having a shape of rotated “U”, and wherein the wire has two ends that are attached to the ejector body.

### Claim 17 (depends on 16)

The portable colon irrigator of claim 16, wherein the wire has bent portions near the ends to position the ejector body lower than a seat of the toilet.

### Claim 18 (depends on 17)

The portable colon irrigator of claim 17, further comprising a water tank as the water source.

### Claim 19 (depends on 18)

The portable colon irrigator of claim 18, wherein the selector has a shape of cylinder and is rotationally received in the chamber, wherein the selector has a selector cavity, a first hole, a second hole, a third hole and a fourth hole, wherein the first hole, the second hole and the third hole are provided near one end of the selector cavity, wherein the fourth hole is provided near the other end of the selector cavity, wherein the first hole is positioned perpendicular with the second hole, and the second hole is positioned perpendicular with the third hole, wherein the fourth hole is parallel with the second hole, whereby when the first hole is aligned with the flow-in conduit, the third hole is aligned with the first flow-out conduit, and the second hole and the fourth hole are blocked by the wall of the chamber so that water flows out through the first flow-out conduit, whereby when the second hole is aligned with the flow-in conduit, the fourth hole is aligned with the second flow-out conduit, and the first hole and the third hole are blocked by the wall of the chamber so that water flows out through the second flow-out conduit.

### Claim 20 (depends on 19)

The portable colon irrigator of claim 19, wherein the valve body has a rectangular recess, wherein the selector further has a handle for rotating the selector, and a projection in the manner that the projection moves in the rectangular recess when the selector is rotated such that rotation of the selector is limited up to 90 degrees.