Mcneil Ab

Extracorporeal Medical Specialties Inc.

Concept, Inc.

Baxter International Inc.

Baxter Travenol Laboratories, Inc.

Extracorporeal, Inc.

Vernon H Troutner

Martin J King

Arthur F Trott

Carl L Foltz

Kyu H Lee

Raymond W Simmons

Jack Goss

Richard A Morrow

Prakash R Keshaviah

Andrew D Hopping

David E Staub

A fluid sampling module is provided for utilization in on-line real time fluid monitoring systems. The fluid sampling module can be utilized as a urea input module in a hemodialysis treatment. The hemodialysis monitoring system quantitates the rate and amount of urea removed during the hemodialysis treatment by measuring the urea concentrations as a function of time in the spent dialysate effluent from a hemodialysis machine. The urea input module interfaces with the dialysate effluent waste line from the hemodialysis machine and periodically removes a quantity of the spent dialysate effluent for measurement. The urea input module detects low flow rates and eliminates low flow rate flutter. The urea input module includes a resealable make before break docking interface with the dialysate effluent line and preferably includes a filter between the urea input module and the urea sensor.

Fluid sampling module

Authentication and verification of suitability for use of disposable elements can be made by evaluation of characteristic data stored on a non-volatile read/write memory element, especially useful in a photoactivatable agent patient treatment system wherein photoactivatable agents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Electronic device for authenticating and verifying disposable elements

Control panel for a patient photophoresis treatment unit

Patient photopheresis treatment unit

Disposable patient fluid irradiation chamber

A removable U.V. light array assembly for use in a photoactivatable agent, patient treatment system wherein photoactivatable agents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Irradiation chamber for photoactivation patient treatment system

Light array assembly for photoactivation patient treatment system

Pump block for interfacing an irradiation chamber with a roller pump in an apparatus for use in a photoactivatable agent, patient treatment system wherein photoactivatable agents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Pump block for interfacing irradiation chamber to photoactivation

Automatic operating zero insertion force socket for use in a photoactivatable reagent treatment system wherein photoactivatable agents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Zero insertion force socket for photoactivation patient treatment system

Manually overridable servo controlled valve mechanisms for controlling the flow of fluids through a flexible tube for use in a photoactivatable agent treatment system wherein photoactivatable agents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Valve apparatus for photoactivation patient treatment system

Manually overridable servo controlled valve mechanisms for controlling the flow of fluids through a flexible tube for use in a photoactivatable reagent treatment system wherein photoactivatable reagents, in contact with patient blood cells, are irradiated extracorporeally and then retruned to the patient.

A blood flow system for processing blood has two phases of operation, an arterial phase and a venous phase. During the arterial phase, the system is filled with blood through operation of an arterial blood pump. When a predetermined blood pressure level in the system has been attained, the arterial blood pump is inactivated and a venous blood pump removes blood from the system for a given number of pump turns. By accurately monitoring both arterial and venous pumps operating cycles, ultrafiltration volume and rate may be determined.

Method and apparatus for ultrafiltration measurement in a two pump

Manually overridable servo controlled valve mechanisms for controlling the flow of fluids through a flexible tube for use in a photoactivatable reagent treatment system wherein photoactivatable reagents, in contact with patient blood cells, are irradiated extracorporeally and then returned to the patient.

Provided are apparatus and methods of use for extracorporeally treating a patient whereby blood is withdrawn from the patient, separated into a leukocyte enriched portion which, in contact with a photoactivatable reagent, is irradiated and all blood portions being returned to the patient. The preferred apparatus is suitably modified with appropriate tubing sets, valves, pumps, centrifuge and controlling means to perform the patient treatment in three operational phases.

Patient photopheresis treatment apparatus and method

Cassette drawer assembly for receiving an irradiation cassette wherein patient blood is irradiated to photoactivate a reagent in contact therewith, said irradiated blood being returned to the patient as part of the complete treatment.

Growing community of inventors

St. Petersburg, FL, United States of America

Vernon H Troutner