Compact peristaltic medical pump
First Claim
1. A medical pumping apparatus for administering a fluid to a patient via a pump set loaded therein, said pump set comprising a tube in fluid communication with a fluid source, said pumping apparatus comprising:
- a guide channel adapted for receiving a portion of the tube when the pump set is loaded in the pumping apparatus;
a belt responsive to a motive force provided thereto for traveling proximate the portion of the tube received in the guide channel, said belt having at least one finger on an outer surface thereof, said finger engaging the portion of the tube received by the guide channel as the belt travels such that the tube is squeezed between the finger and an opposing surface of the guide channel to force the fluid through the tube from the fluid source toward the patient; and
a drive system for providing the motive force to the belt, said drive system including a motor for generating the motive force, said motor being positioned substantially within an interior space defined by an inner surface of the belt.
3 Assignments
0 Petitions
Accused Products
Abstract
A compact medical pump includes a linear peristaltic pumping mechanism driven by a motor located within a periphery of a belt of the pumping mechanism. The motor drives a gear set that drives a driving pulley which engages the belt having the rollers. A battery for the pump is positioned adjacent to the gear set. The pump includes a controller and user interface for operating the pumping mechanism as a function of pumping parameters input via the user interface. The controller may sense motor current and determine fluid path characteristics based on the sensed current.
93 Citations
10 Claims
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1. A medical pumping apparatus for administering a fluid to a patient via a pump set loaded therein, said pump set comprising a tube in fluid communication with a fluid source, said pumping apparatus comprising:
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a guide channel adapted for receiving a portion of the tube when the pump set is loaded in the pumping apparatus; a belt responsive to a motive force provided thereto for traveling proximate the portion of the tube received in the guide channel, said belt having at least one finger on an outer surface thereof, said finger engaging the portion of the tube received by the guide channel as the belt travels such that the tube is squeezed between the finger and an opposing surface of the guide channel to force the fluid through the tube from the fluid source toward the patient; and a drive system for providing the motive force to the belt, said drive system including a motor for generating the motive force, said motor being positioned substantially within an interior space defined by an inner surface of the belt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. The medical pumping apparatus of 7 further comprising a housing, said housing having a front for supporting the user interface, a bottom for supporting the guide channel, and a back, wherein the controller is positioned within the housing behind the user interface, the belt is positioned within the housing behind the controller, and a gear set of the drive system is positioned adjacent the back of the housing.
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10. A medical pumping apparatus for administering a fluid to a patient via a pump set loaded therein, said pump set comprising a tube in fluid communication with a fluid source, said pumping apparatus comprising:
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a guide channel adapted for receiving a portion of the tube when the pump set is loaded in the pumping apparatus; a belt responsive to a motive force provided thereto for traveling proximate the portion of the tube received in the guide channel, said belt having a plurality of rollers evenly spaced about an outer surface of the belt, each of said rollers periodically engaging the portion of the tube received by the guide channel as the belt travels such that the tube is squeezed against an opposing surface of the guide channel to force the fluid through the tube from the fluid source toward the patient; a drive system positioned at least partially within an interior space defined by an inner surface of the belt for providing the motive force to the belt, said drive system including a motor for generating the motive force; a user interface for displaying and receiving information relating to one or more pumping parameters; a controller for selectively providing power to the drive system as a function of the pumping parameters, said controller being responsive to a current sensed in the motor for determining a fluid path characteristic of the pumping apparatus and said controller further selectively providing power to the drive system as a function of the determined fluid path characteristic; and a housing, said housing having a front for supporting the user interface, a bottom for supporting the guide channel, and a back, wherein the controller is positioned within the housing behind the user interface, the belt is positioned within the housing behind the controller, and a gear set of the drive system is positioned adjacent the back of the housing.
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Specification