Donald J Classey

US Patent:

52902390, Mar 1, 1994

Filed:

May 15, 1992

Appl. No.:

7/884498

Inventors:

Donald J. Classey - Waukegan IL
Theresa Grajo - Round Lake Beach IL
Kenneth Lynn - McHenry IL
John McVey - Lake Zurich IL
Eric Myren - Barrington IL
Gabriel Vehovsky - McHenry IL

Assignee:

Baxter International, Inc. - Deerfield IL

International Classification:

A61M 3700

US Classification:

604131

Abstract:

The present invention provides an apparatus for use in a peristaltic pump 20 which prevents an inadvertent free flow condition prior to loading or after removal of an I. V. tube 26 in the peristaltic pump 20 and which also prevents the inadvertent occlusion of a loaded I. V. tube 26 in the peristaltic pump 20. A standard I. V. tube 26 has a slide clamp 109 provided thereon. The apparatus includes an I. V. tube groove 29 into which the I. V. tube 26 is positioned, a slide clamp receiving area 62 into which the slide clamp 109 is inserted, and a biased sliding member 81 which the inserted slide clamp 109 engages such that the I. V. tube 26 cannot be loaded into the apparatus without the slide clamp 109 occluding the I. V. tube 26. The present invention also contemplates a slide clamp 109' compatible with the apparatus having a surface pad 125 for facilitating automated identification of the slide clamp 109' in cooperation with a non-obstructive sensor 85 in the safety apparatus. The present invention further contemplates a slide clamp 109' having an I. V.

US Patent:

53000447, Apr 5, 1994

Filed:

Apr 12, 1993

Appl. No.:

8/045291

Inventors:

Donald J. Classey - Waukegan IL
Theresa Grajo - Round Lake Beach IL
Kenneth Lynn - McHenry IL
John McVey - Lake Zurich IL
Eric Myren - Barrington IL
Gabriel Vehovsky - McHenry IL

Assignee:

Baxter International Inc. - Deerfield IL

International Classification:

A61M 500

US Classification:

604250

Abstract:

The present invention provides an apparatus for use in a peristaltic pump 20 which prevents an inadvertent free flow condition prior to loading or after removal of an I. V. tube 26 in the peristaltic pump 20 and which also prevents the inadvertent occlusion of a loaded I. V. tube 26 in the peristaltic pump 20. A standard I. V. tube 26 has a slide clamp 109 provided thereon. The apparatus includes an I. V. tube groove 29 into which the I. V. tube 26 is positioned, a slide clamp receiving area 62 into which the slide clamp 109 is inserted, and a biased sliding member 81 which the inserted slide clamp 109 engages such that the I. V. tube 26 cannot be loaded into the apparatus without the slide clamp 109 occluding the I. V. tube 26. The present invention also contemplates a slide clamp 109, compatible with the apparatus having a surface pad 125 for facilitating automated identification of the slide clamp 109, in cooperation with a nonobstructive sensor 85 in the safety apparatus. The present invention further contemplates a slide clamp 109'.

US Patent:

53890710, Feb 14, 1995

Filed:

Apr 2, 1993

Appl. No.:

8/042015

Inventors:

Masafumi Kawahara - Nara, JP
Donald J. Classey - Waukegan IL
Kenneth M. Lynn - McHenry IL
Michael Gluth - Arlington Heights IL
Grace M. Esche - Algonquin IL
Joseph B. Matthews - Grayslake IL

Assignee:

Sharp Kabushiki Kaisha - Osaka

International Classification:

A61M 3100
A61M 530

US Classification:

604 51

Abstract:

An infusion apparatus incorporates a RAM which has a first storage section for storing only one delivery pattern defining an infusion rate and a volume to be infused at the infusion rate, and a PDP storage section for storing a plurality of delivery patterns. In a one-pattern delivery mode, an infusion fluid is delivered according to the only one delivery pattern read out from the first storage section by a CPU. Therefore, infusion is performed at the same rate from the beginning to the end. In a PDP (Program Delivery Profile) mode, an infusion fluid is delivered according to the plurality of delivery patterns read out in sequence from the PDP storage section. Therefore, infusion is performed at various rates. One of the one-pattern delivery mode and the PDP mode is selected by an operator through operation of a mode selector in consideration of factors such as the kind of medication and the condition of the patient.