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US 6,261,262 B1Granted
Pump with anti-free flow feature
AssigneeAbbott Laboratories
InventorsKenneth D. Briggs, Allen C. Hall, Russel M. Sampson
Life of this patent
Estimating the term…
Abstract
A peristaltic pump is provided with a housing, a pump head in the housing, and a receiving path defined along a housing and pump head for receiving tubing. A door is pivotable about an axis between a closed position covering the receiving path and an open position exposing the receiving path. A carrier is provided on the housing for holding an anti-free flow slide clamp on the tubing in the receiving path. The carrier is movable relative to the housing so as to automatically effect closure of the tubing by the slide clamp when the door is opened.
Claims35
A pump comprising:
- (a) a housing having a receiving path for receiving tubing through which fluid is pumped;
- (b) a door pivotable with respect to said housing about an axis;
- and
- (c) a carrier means on said housing for carrying a clamp on said tubing, said carrier means movable relative to said housing in a direction parallel to said axis;
- said carrier means includes a carrier defining first and second slots for receiving said clamp;
- and said second slot extends from, and is generally normal to, said first slot.
3 more elements
A pump comprising:
- a housing;
- a receiving path defined along said housing for receiving tubing;
- a door pivotable about an axis between a closed position covering said receiving path and an open position exposing said receiving path;
- and
- a carrier on said housing for holding an anti-free flow slide clamp defining an elongate aperture, said carrier adapted to hold said clamp in an orientation wherein said clamp aperture lies in a plane parallel to said door axis.
2 more elements
A peristaltic pump comprising:
- a housing;
- a receiving path defined substantially in a plane along said housing for receiving tubing;
- and
- a carrier on said housing for holding an anti-free flow slide clamp, said carrier being moveable relative to said housing in a direction parallel to said plane defined by said receiving path, said clamp defines an elongate aperture having (1) a narrow portion for squeezing said tubing into a closed configuration, and (2) a wide portion for receiving said tubing in an unsqueezed, open configuration.
1 more element
A pump comprising:
- a housing which defines (1) a receiving path for receiving tubing extending from an inlet end of said path to an outlet end of said path, and (2) a groove that is (a) oriented generally normal to a portion of said receiving path, and (b) communicates with said receiving path;
- and
- a carrier into which can be inserted an anti-free flow clamp, said carrier being located adjacent said housing receiving path and groove, said carrier defining first and second slots for receiving portions of said clamp, said second slot extending from said first slot, said second slot being generally normal to said first slot and aligned with said housing groove.
In a pump which includes (1) a receiving path for receiving tubing extending from an inlet end of the path to an outlet end of the path, and (2) a peristaltic pump head along said receiving path between said inlet end and said outlet end, the improvement comprising:
- a carrier into which can be inserted an anti-free flow clamp, said carrier being located adjacent said receiving path between said inlet end and said pump head;
- said carrier defines first and second slots for receiving said clamp;
- and said second slot extends from, and is generally normal to, said first slot.
In a pump which includes (1) a receiving tubing extending from an inlet end of the path to an outlet end of the path, and (2) a peristaltic pump head along said receiving path between said inlet end and said outlet end, the improvement comprising:
- a carrier for holding an anti-free flow clamp on said tubing for operation between a closed condition squeezing said tubing into a closed configuration and an open condition in which said tubing is free to return to an open configuration, said barrier being lacated adjacent said receiving path between said inlet end and said pump head to position a portion of said clamp across said receiving path when said clamp is inserted into said carrier into said closed condition on said tubing so that said tubing can be loaded into said receiving path beginning at said inlet end and terminating at said outlet end;
- said pump has a door pivotable about an axis between a closed position covering said receiving path and an open position exposing said receiving path;
- and said carrier is movable toward and away from said receiving path in opposite direction parallel to said door axis.
A pump comprising:
- a housing;
- a peristaltic pump head in said housing;
- a receiving path defined along said housing and said pump head for receiving tubing;
- a door pivotable about a first axis between a closed position covering said receiving path and an open position exposing said receiving path;
- a carrier on said housing for holding an anti-free flow slide clamp defining an elongate aperture, said carrier adapted to hold said clamp in an orientation wherein said clamp aperture lies in a plane parallel to said door axis, said carrier being mounted on said housing to accommodate reciprocatable movement toward and away from a portion of said receiving path;
- a handle pivotally mounted to said door about a second axis perpendicular to said first axis, said handle having a camming surface;
- a cam follower element pivotally mounted to said housing about a third pivot axis for being engaged and pivoted by said handle camming surface when said handle is pivoted while said door is at said closed position;
- a link pivotally connected to said cam follower element about a fourth pivot axis and pivotally connected to said carrier about a fifth pivot axis;
- and
- a spring acting between said cam housing and said cam follower element to urge said follower element to pivot about said third pivot axis in a direction to move said carrier toward said portion of said receiving path.
7 more elements
A pump comprising:
- (a) a housing having a receiving path that includes at least a portion lying in a straight line and that is adapted to receive tubing through which fluid is pumped;
- and
- (b) a carrier means on said housing for carrying a clamp on said tubing, said carrier means movable relative to said housing in a direction parallel to said straight line;
- said carrier means includes a carrier adapted for holding an anti-free flow clamp defining an elongate aperture that lies generally in a plane and that has (1) a narrow portion for squeezing said tubing into a closed configuration, and (2) a wide portion for receiving said tubing in an unsqueezed, open configuration.
1 more element
A system for delivering a fluid through tubing comprising:
- (A) a clamp for clamping the tubing;
- and
- (B) a pump including
- (1) a housing having a receiving path for receiving the tubing through which the fluid is pumped;
- and
- (2) a carrier mounted in said housing for carrying said clamp on the tubing, said carrier being movable relative to said housing, said carrier defines first and second slots for each receiving said clamp;
- and said second slot extends from, and is generally normal to, said first slot.
4 more elements
A pump comprising:
- (a) a housing having a receiving path for receiving tubing though which fluid is pumped;
- (b) a door pivotable with respect to said housing about an axis;
- (c) a carrier on said housing for carrying a clamp on said tubing, said carrier means movable relative to said housing in a direction parallel to said axis,
- said door is pivotable about said axis between a closed position covering said receiving path and an open position exposing said receiving path,
- said carrier is adapted for holding said clamp on said tubing, and said clamp is an anti-free flow clamp having an elongate aperture for receiving the tubing.
2 more elements
Dependencies are inferred from the claim text.