Baxter International Inc.

The General Hospital Corporation

Baxter Healthcare Sa

Ralph H LaBedz

Michael Kenneth Platt

Ronald H Spang, Jr

Michelle Kowalski Greaney

Matthew Stephen Vogel

James Frei Berrill

John Gillespie, Jr

John M Turner

Hal C Danby

Kenneth M Lynn

Martin Monaghan

Thomas McGraghan

Jon Plumb

Janice Stewart

Alan Keith Brundle

Tim Allen

Geoff Hutchins

Mark Harris

Patrick Hovis

Stuart Page

Kevin J Moraski

Svante Eric Myren

Ronald P Spang

Nathaniel M Sims

Peter M Bojan

Zhengyan Wang

Joseph Allen Carmichael

Jane M Zeisloft

Surya Pratap Rai

Svante (Eric) Myren

John Gillespie

David G Zabel

Daniel C Kusswurm

An infusion pump operable with a syringe having a syringe barrel and a syringe plunger includes a housing having a compartment to receive the syringe and defining a wall, and a syringe clamp moveable towards and away from the wall, the syringe clamp contacting the syringe barrel; a drive mechanism supported and structured and arranged to contact and end of the syringe plunger so as to be able to move the syringe plunger within the syringe barrel; a syringe barrel size sensor including a magnet operably coupled to the syringe clamp, and a sensing member supported by the housing and configured to generate an output indicative of a magnetic field associated with the magnet; and software installed on the pump and programmed to use the output to determine a size of the syringe barrel received by the compartment.

Infusion pump including syringe sensing

A method of delivering a medical fluid to a patient includes enabling the attachment of an infusion pump housing to an external support, enabling the viewing of information right-side-up on a display screen of the infusion pump housing, enabling the rotation of the display screen approximately 90 degrees about an axis extending perpendicularly from the display screen, automatically reorienting the information on the display screen so that the information remains right-side-up after rotation, enabling the viewing of the information right-side-up on the display screen after rotation, and enabling the delivery of a flowable material to the patient through an infusion line attached to the infusion pump housing before and after rotation.

Method of operating an infusion pump with a multiple orientation display

An infusion pump includes a housing having a compartment structured to receive a syringe and a drive mechanism supported by the housing. The drive mechanism is structured and arranged to contact a syringe plunger of the syringe and move the syringe plunger within a syringe barrel of the syringe. The infusion pump further includes a syringe plunger position sensor and a syringe barrel size sensor. The sensors each include a magnet positioned on the drive mechanism and a magnetic sensor array supported by the housing.

Infusion pump including syringe plunger position sensor

An infusion pump including a drive mechanism; an assembly operable with the drive mechanism, the assembly configured to deliver a flowable material to a patient; a mountable housing holding the drive mechanism and configured at its front side to receive the assembly and at its backside to mount in either a first orientation or a second orientation to an external support, wherein the housing supports the drive mechanism and the assembly in each of the orientations; a controller operably connected to the housing; and a display operably connected to the controller and supported by the front side of the housing, the display configured to be rotatably responsive so that information displayed by the display is oriented right-side-up regardless of whether the assembly is in the first orientation or the second orientation.

Infusion pump with multiple orientation display

An infusion pump includes a housing; a user interface carried by the housing; a pump actuator positioned by the housing so as to be able to actuate a medical fluid pump member; and wherein the user interface and the pump actuator are powered interchangeably by a first, rechargeable battery unit and a second battery unit, both the first and second battery units configured to power the user interface and the pump actuator at a place for which outside power is unavailable, and such that the user interface and the pump actuator can be powered by the second battery unit while the first battery unit is being recharged.

Infusion pump with battery operation capability

An infusion pump uses an improved shuttle mechanism to more reliably pump liquids in low volumes for medical and other purposes. The improved shuttle uses linear translation and wider, symmetric jaws to grasp infusate tubing and pump liquid infusate through the tubing. Adjustment of the linear motion allows a user to also adjust a pumping volume of the infusion pump. Other shuttles with wider jaws may also pump infusate using a rotary motion. In addition, more than one shuttle, such as two or three shuttles, may be used to approximate continuous pumping. A series of several smaller linear shuttles with sequential actuation may be used as a linear peristaltic pump for general peristaltic pump applications.

Shuttle pump with controlled geometry

An infusion pump which includes a fingerprint reader to verify that a patient or a user is authorized to activate a patient-controlled analgesic button. The fingerprint reader can be integrated into the patient-controlled analgesic button. The infusion pump delivers a dose of medication to the patient if the fingerprint of the patient or user matches a pre-loaded fingerprint.

Infusion pump

A drive mechanism for an infusion pump linearly moves a syringe plunger within a syringe barrel supported by the pump and includes: (i) a motor; (ii) a lead screw rotatably connected to the motor; (iii) a slide assembly having a threaded member supported thereon, the threaded member being associated with the lead screw; (iv) an arm having one end connected to the slide assembly and one end adapted to be engaged with the syringe plunger, and (v) the threaded member being rotatably biased in engagement with the lead screw, wherein upon rotation of the lead screw by the motor, the slide assembly linearly moves the arm wherein the arm is adapted to move the syringe plunger within the syringe barrel.

An infusion pump () is configured to be powered by either a disposable battery source or a rechargeable battery source. The infusion pump () has a housing () having a recess (). A motor is positioned within the housing () and is operably connected to an electrical contact () disposed in the recess (). The motor powers the pump (). The recess () receives one of a rechargeable battery unit () having an electrical contact () that contacts the recess electrical contact (), and a disposable battery unit () having an electrical contact () that contacts the recess electrical contact ().

A method of detecting an occlusion within a flexible infusion tube by measuring samples indicative of pressures relative to instances in time. Difference values for the samples are created. The difference values are compared to percentages of other difference values. When appropriate, an occlusion signal is generated in response to a comparison of a difference value to a percentage of another difference value.

Occlusion detection method and system for ambulatory drug infusion pump

An air in-line sensor for detecting air bubbles in a therapeutic solution flowing through a tube utilizes a unitary type sensor having a channel for receiving the tube. The channel has a tube loading section. A signal emitting member is positioned on one side of the tube and a signal receiving member is positioned on an opposite side of the tube. A first air baffle is positioned between the signal emitting and signal receiving members.

Air in-line sensor for ambulatory drug infusion pump

A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medicaments to a patient. Among the various features included in the instant invention is a pumping body which serves to deform and reform a tube so as to maintain the initial cross-section thereof and thereby preserve the output accuracy of the pump. Also disclosed with regard to the pumping body is a wholly mechanical synchronization of the pumping body and valves associated therewith and coactive with the aforementioned synchronization a mechanical linearization of output of the pumping body per each pumping cycle. Additionally, several features which serve to enhance the utility of the instant invention are also included therein among which is an associated assembly operative to automatically load or disload a tube or IV set into or out of the pumping body. Associated with the assembly operative to automatically load or disload a tube and disclosed herein is an assembly operative to selectively open or close a slide clamp associated with the tube in such a way as to ensure that the tube is occluded such that in combination with the valves associated with the pumping body, a condition of free-flow of medicament is never realized. Additionally disclosed are sensor housings adapted to measure various quantities associated with fluid flowing through the tube wherein the housings are with associated components adapted to achieve a substantially normal orientation with respect to the sidewall of the tube and in the achieving of such normal orientation, expressing an essentially zero elastic stress gradient across the tube.

Growing community of inventors

McHenry, IL, United States of America

Ralph H LaBedz