Pumping Cassette

a cassette and pumping technology, applied in the direction of machines/engines, liquid fuel engines, positive displacement liquid engines, etc., can solve the problems of contamination of the sensor apparatus and/or the fluid, and the accuracy of the device used,

Inactive Publication Date: 2008-10-02
DEKA PROD LLP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023]Alternatively, the well may be coupled to the cassette, e.g., using at least one of press fit connection, flexible tabs, adhesive, ultrasonic weld, and a retaining plate and fastener. An o-ring may be disposed between the well and the fluid conduit. The o-ring may include one of a round cross-section, a square cross-section, and an X-shaped cross-section. The well may include a groove to receive a portion of the o-ring. A portion of the well in contact with the conduit may be flexible so as to deform the conduit and may include a plurality of cuts to provide such flexibility.

Problems solved by technology

However, this method may lead to contamination of the sensor apparatus and / or the fluid.
Additional problems with harsh media or problems with the accuracy of the device used exist.

Method used

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Examples

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Embodiment Construction

[0082]Definitions. As used in this description and the accompanying claims, the following terms shall have the meanings indicated, unless the context otherwise requires:

[0083]“Spheroid” means any three-dimensional shape that generally corresponds to a oval rotated about one of its principal axes, major or minor, and includes three-dimensional egg shapes, oblate and prolate spheroids, spheres, and substantially equivalent shapes.

[0084]“Hemispheroid” means any three-dimensional shape that generally corresponds to approximately half a spheroid.

[0085]“Spherical” means generally spherical.

[0086]“Hemispherical” means generally hemispherical.

[0087]“Fluid” shall mean a substance, a liquid for example, that is capable of being pumped through a flow line. Blood is a specific example of a fluid.

[0088]A “patient” includes a person or animal from whom, or to whom, fluid is pumped, whether as part of a medical treatment or otherwise.

[0089]“Subject media” is any material, including any fluid, soli...

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PUM

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Abstract

A sensor apparatus and sensor apparatus system for use in conjunction with a cassette, including a disposable or replaceable cassette. In some embodiments, the cassette includes a thermal well for permitting the sensing of various properties of a subject media. The thermal well includes a hollow housing of a thermally conductive material. In other embodiments, the cassette includes sensor leads for sensing of various properties of a subject media. The thermal well has an inner surface shaped so as to form a mating relationship with a sensing probe. The mating thermally couples the inner surface with a sensing probe. In some embodiments, the thermal well is located on a disposable portion and the sensing probe on a reusable portion.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001]This application claims priority from the following United States Provisional Patent Applications, all of which are hereby incorporated herein by reference in their entireties:[0002]U.S. Provisional Patent Application No. 60 / 904,024 entitled Hemodialysis System and Methods filed on Feb. 27, 2007; and[0003]U.S. Provisional Patent Application No. 60 / 921,314 entitled Sensor Apparatus filed on Apr. 2, 2007.[0004]This application is also related to the following United States patent applications, all of which are being filed on even date herewith and are hereby incorporated herein by reference in their entireties:[0005]U.S. patent application entitled Pumping Cassette (Attorney Docket No. DEKA-020XX); U.S. patent application entitled Pumping Cassette (Attorney Docket No. DEKA-021XX); U.S. patent application entitled Pumping Cassette (Attorney Docket No. DEKA-022XX); U.S. patent application entitled Pumping Cassette (Attorney Docket No. DEKA-0...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B53/00
CPCA61M1/28A61M2205/12F04B43/0054F04B43/06F04B2205/11A61M1/3623A61M1/36222A61M1/362265A61M1/36224A61M1/362261A61M1/36225
Inventor KAMEN, DEANPERRY, N. CHRISTOPHERDEMERS, JASON A.TRACEY, BRIAN
Owner DEKA PROD LLP
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