# US 9,433,771 B2 · Quick disconnect fluid connector

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- Number: US 9,433,771 B2
- Document ID: US9433771B2
- Status: Granted
- Kind: B2
- Application number: 12/998,458
- Filed: 2009-10-05
- Published: 2012-01-12
- Granted: 2016-09-06
- Earliest claimed: 2008-10-13
- Assignees: Ethicon, Inc.
- Applicants: Nick N. Nguyen; Walter Francovich; Philippe Conseil
- Inventors: Nick N. Nguyen; Walter Francovich; Philippe Conseil
- Web page: https://patentgrep.com/patent/US9433771B2

## CPC

- A61M 39/12: for joining a flexible tube to a rigid attachment
- A61L 2/18: Liquid substances
- A61L 2/26: Accessories
- A61L 2103/15: Laboratory, medical or dentistry appliances, e.g. catheters or sharps
- A61L 2202/123: Connecting means
- A61M 2039/1027: {Quick-acting type connectors}
- 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)}
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

Coupling arrangements and connectors for establishing a substantially fluid-tight removable connection between a plurality of fluid ports or channels in a medical device such as, an endoscope. Various embodiments of the connectors may be coupled to a plurality of fluid conduits that may be attached to a decontamination or reprocessing device used to flow fluid through corresponding channels in the medical device during the decontamination process.

## Claims

### Claim 1

A endoscopic fluid line connector comprising:
a housing comprising:
a first fluid passage extending through the housing along a first fluid axis;
a second fluid passage extending through the housing along a second fluid axis, wherein the second fluid axis is substantially parallel to the first fluid axis;
a bottom surface substantially perpendicular to the second fluid axis and comprising an opening in fluid communication with the second fluid passage; and
a latch cavity formed in the bottom surface of the housing, the latch cavity comprising a bottom surface and two opposed end walls, wherein the bottom surface of the latch cavity is off-set from the bottom surface of the housing, wherein the bottom surface of the latch cavity is substantially perpendicular to the first fluid axis and comprises an opening in fluid communication with the first fluid passage, and wherein one of the two opposed end walls comprises a button opening extending through the end wall;
a latch slide located within the latch cavity and slidable from a latched position to an unlatched position along a lateral axis that is substantially perpendicular to the first fluid axis and the second fluid axis, the latch slide comprising:
opposed lateral side walls that are substantially parallel to the lateral axis;
a latch opening located between the opposed lateral side walls and extending through the latch slide in a direction substantially parallel to the first fluid axis and the second fluid axis;
a latch button located on an end of the latch slide and positioned through the button opening in the end wall of the latch cavity; and
a latch feature located on at least one of the two opposed lateral side walls facing the latch opening, the latch feature comprising a retention ledge located substantially parallel to the lateral axis, and a cam surface located at a non-zero angle to the lateral axis, the first fluid axis, and the second fluid axis; and
a biaser positioned between the end wall of the latch cavity opposite the end wall comprising the button opening and the end of the latch slide opposite the end comprising the latch button.

### Claim 2 (depends on 1)

The fluid line connector of claim 1, wherein the latch slide comprises two latch features, one latch feature located on each of the two opposed lateral side walls facing the latch opening, each latch feature comprising a retention ledge located substantially parallel to the lateral axis, and a cam surface located at a non-zero angle to the lateral axis, the first fluid axis, and the second fluid axis.

### Claim 3 (depends on 1)

The fluid line connector of claim 1, wherein the biaser biases the latch slide toward the latched position in which the latch button extends beyond the button opening in the end wall of the latch cavity.

### Claim 4 (depends on 1)

The fluid line connector of claim 1, wherein the biaser comprises a coil spring.

### Claim 5 (depends on 4)

The fluid line connector of claim 4, wherein the coil spring comprises:
a first end seated in a spring opening on the end wall of the latch cavity opposite the end wall comprising the button opening; and
a second end seated in a spring opening on the end of the latch slide opposite the end comprising the latch button.

### Claim 6 (depends on 1)

The fluid line connector of claim 1, wherein the bottom surface of the latch cavity comprises a chamfered or tapered surface surrounding the opening in fluid communication with the first fluid passage.

### Claim 7 (depends on 1)

The fluid line connector of claim 1, wherein the bottom surface of the housing comprises a chamfered or tapered surface surrounding the opening in fluid communication with the second fluid passage.

### Claim 8 (depends on 1)

The fluid line connector of claim 1, wherein the housing comprises an outermost surface and a recessed portion that is recessed from the outermost surface, and wherein the latch button extends through the button opening in the end wall of the latch cavity and into the recessed portion when the latch slide is in the latched position.

### Claim 9 (depends on 8)

The fluid line connector of claim 8, wherein the latch button does not extend beyond the outermost surface of the housing when the latch slide is in the latched position.

### Claim 10 (depends on 1)

The fluid line connector of claim 1, further comprising:
a first hose barb protruding from the housing and in fluid communication with the first fluid passage; and
a second hose barb protruding from the housing and in fluid communication with the second fluid passage.

### Claim 11 (depends on 10)

The fluid line connector of claim 10, wherein the first hose barb comprises:
a first attachment end connected to the first fluid passage; and
a first coupling end configured for connecting to a first external fluid conduit; and
wherein the second hose barb comprises:
a second attachment end connected to the second fluid passage; and
a second coupling end configured for connecting to a second external fluid conduit.

### Claim 12 (depends on 11)

The fluid line connector of claim 11, further comprising:
a first seal member located between the first attachment end of the first hose barb and the housing; and
a second seal member located between the second attachment end of the second hose barb and the housing.

### Claim 13 (depends on 12)

The fluid line connector of claim 12, wherein the first seal member comprises a first O-ring, and wherein the second seal member comprises a second O-ring.

### Claim 14 (depends on 10)

The fluid line connector of claim 10, further comprising:
a first external fluid conduit connected to the first hose barb; and
a second external fluid conduit connected to the second hose barb.

### Claim 15 (depends on 14)

The fluid line connector of claim 14, wherein the first external fluid conduit and/or the second external fluid conduit comprise a hose fitting or a tube fitting.

### Claim 16 (depends on 1)

A coupling arrangement comprising:
the fluid line connector of claim 1; and
a medical device coupled to the fluid line connector.

### Claim 17 (depends on 16)

The coupling arrangement of claim 16, wherein the medical device comprises an endoscope.

### Claim 18 (depends on 17)

The coupling arrangement of claim 17, wherein the endoscope is coupled to the fluid line connector at a proximal end of the endoscope.

### Claim 19 (depends on 16)

The coupling arrangement of claim 16, wherein the medical device comprises:
a first fluid connecting port comprising at least one retention flange; and
a second fluid connecting port;
wherein the latch slide is in the latched position and the retention ledge of the latch feature engages the at least one retention flange of the first fluid connecting port, thereby retaining the first fluid connecting port and the second fluid connecting port of the medical device in substantially fluid-tight engagement with the fluid line connector;
wherein the first fluid connecting port of the medical device is in fluid communication with the first fluid passage in the housing of the fluid line connector; and
wherein the second fluid connecting port of the medical device is in fluid communication with the second fluid passage in the housing of the fluid line connector.

### Claim 20 (depends on 16)

The coupling arrangement of claim 16, wherein:
the first fluid passage in the housing of the fluid line connector is in fluid communication with a medical device decontamination system through a first hose barb protruding from the housing and a first external fluid conduit connected to the first hose barb; and
the second fluid passage in the housing of the fluid line connector is in fluid communication with the medical device decontamination system through a second hose barb protruding from the housing and a second external fluid conduit connected to the second hose barb.