Locking mechanism for roller clamp

Patent metadata

Field	Value
Publication number	US-11058861-B2
Application number	US-201916379639-A
Country	US
Kind code	B2
Filing date	Apr 9, 2019
Priority date	Apr 9, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

Roller clamps are described herein. A roller clamp includes a housing, a roller wheel, and a locking device. The housing includes a first wall and a second wall, wherein the first wall and the second wall are spaced apart to define a longitudinal channel therebetween, the housing including an upper opening and a lower opening configured to allow a tubing to pass through the longitudinal channel. The roller wheel is disposed at least partially within the longitudinal channel and configured to engage the tubing, the roller wheel including a plurality of teeth extending from an outer surface of the roller wheel, wherein a longitudinal position of the roller wheel relative to the channel adjusts a flow rate through the tubing. The locking device is releasably engaged to the housing and the roller wheel, wherein the locking device prevents movement of the roller wheel from the longitudinal position.

First claim

What is claimed is:

1. A roller clamp, comprising:
a housing comprising a first wall and a second wall, wherein the first wall and the second wall are spaced apart to define a longitudinal channel therebetween, the housing including an upper opening and a lower opening configured to allow a tubing to pass through the longitudinal channel;
a roller wheel disposed at least partially within the longitudinal channel and configured to engage the tubing, the roller wheel including a plurality of teeth extending from an outer surface of the roller wheel, wherein a longitudinal position of the roller wheel relative to the channel adjusts a flow rate through the tubing; and
an access door coupled to the housing, the access door comprising a plurality of mating teeth, wherein the plurality of mating teeth is configured to engage with at least one of the plurality of teeth of the roller wheel to prevent movement of the roller wheel when the access door is in a closed position.

2. The roller clamp of claim 1 , wherein the access door comprises a latch releasably coupling the access door to the housing.

3. The roller clamp of claim 2 , wherein the latch comprises a snap mechanism.

4. A method for adjusting a flow rate through a tubing, the method comprising:
providing the tubing through a roller clamp;
adjusting a longitudinal position of a roller wheel of the roller clamp to adjust the flow rate through the tubing, wherein the roller wheel includes a plurality of teeth extending from an outer surface of the roller wheel;
covering the roller wheel with a locking device engaged to a housing of the roller clamp; and
engaging a plurality of mating teeth of the locking device with at least one of the plurality of teeth of the roller wheel to prevent movement of the roller wheel when the locking device is in a closed position.

5. The method of claim 4 , further comprising:
engaging the roller wheel with the locking device to releasably couple the roller wheel to the housing to prevent movement of the roller wheel.

6. A roller clamp, comprising:
a housing comprising a first wall and a second wall, wherein the first wall and the second wall are spaced apart to define a longitudinal channel therebetween, the housing including an upper opening and a lower opening configured to allow a tubing to pass through the longitudinal channel;
a roller wheel disposed at least partially within the longitudinal channel and configured to engage the tubing, the roller wheel including a plurality of teeth extending from an outer surface of the roller wheel, wherein a longitudinal position of the roller wheel relative to the channel adjusts a flow rate through the tubing; and
a locking device releasably engaged to the housing and the roller wheel, wherein the locking device prevents movement of the roller wheel from the longitudinal position, the locking device comprising an immobilizer, the immobilizer including a plurality of locking teeth, wherein the locking teeth engage the housing and at least one of the plurality of teeth of the roller wheel to prevent movement of the roller wheel.

7. The roller clamp of claim 6 , wherein the plurality of locking teeth engages at least one of a plurality of housing teeth of the housing.

8. The roller clamp of claim 6 , wherein the roller wheel includes an axial lip defining the outer surface of the roller wheel.

9. The roller clamp of claim 8 , wherein the immobilizer further comprises a first immobilizer wall and a second immobilizer wall, wherein the first immobilizer wall and the second immobilizer wall extend beyond the axial lip of the roller wheel.

10. The roller clamp of claim 9 , wherein the first immobilizer wall defines a keyway.

11. A roller clamp, comprising:
a housing comprising a first wall and a second wall, wherein the first wall and the second wall are spaced apart to define a longitudinal channel therebetween, the housing including an upper opening and a lower opening configured to allow a tubing to pass through the longitudinal channel;
a roller wheel disposed at least partially within the longitudinal channel and configured to engage the tubing, the roller wheel including a plurality of teeth extending from an outer surface of the roller wheel, wherein a longitudinal position of the roller wheel relative to the channel adjusts a flow rate through the tubing; and
a locking device releasably engaged to the housing and the roller wheel, wherein the locking device prevents movement of the roller wheel from the longitudinal position,
wherein the first wall and the second wall are biased to contact the roller wheel, preventing movement of the roller wheel from the longitudinal position, and the locking device comprises a first wall extension of the first wall extending away from the roller wheel and a second wall extension of the second wall extending away from the roller wheel, wherein compressing the first wall extension and the second wall extension urge the first wall and the second wall away from the roller wheel to permit movement of the roller wheel from the longitudinal position.

12. A roller clamp, comprising:
a housing comprising a first wall and a second wall, wherein the first wall and the second wall are spaced apart to define a longitudinal channel therebetween, the housing including an upper opening and a lower opening configured to allow a tubing to pass through the longitudinal channel;
a roller wheel disposed at least partially within the longitudinal channel and configured to engage the tubing, the roller wheel including a plurality of teeth extending from an outer surface of the roller wheel, wherein a longitudinal position of the roller wheel relative to the channel adjusts a flow rate through the tubing; and
a locking device releasably engaged to the housing and the roller wheel, wherein the locking device prevents movement of the roller wheel from the longitudinal position, the locking device comprising a slider, the slider including a biasing arm engaging the roller wheel and configured to bias the roller wheel against the first wall.

Assignees

• Carefusion 303 Inc

Inventors

• Pak Janice
• Underwood Wesley
• Dekalb Shawn

Classifications

• A61M39/286 Primary

  Wedge clamps, e.g. roller clamps with inclined guides · CPC title

• A61M2205/276

  preventing unwanted use · CPC title

• A61M5/16877

  Adjusting flow; Devices for setting a flow rate · CPC title

• F16K7/06

  by means of a screw-spindle, cam, or other mechanical means {(F16K7/045 takes precedence)} · CPC title