Patents by Inventor William G. Palsulich
William G. Palsulich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7582049Abstract: A centrifugal fluid separation system is disclosed for centrifugally separating a composite fluid into components thereof. This centrifugal separation system includes at least a centrifugal rotor which has a composite fluid containment area, a fluid flow channel/tubing and at least one separated component collection area defined therein. A composite fluid to be separated is delivered to the fluid containment area where under centrifugal forces the composite fluid is separated into components and then from which a component travels through an outlet channel to a respective separated component fluids flowing therethrough. A centrally disposed pump is also provided to move the separated component(s) to the collection area(s). Optical sensing of the interface of the separated fluid components may be used with a clamp to stop flow. A disposable bag and tubing system is also disclosed for use with reusable rotor devices.Type: GrantFiled: February 8, 2006Date of Patent: September 1, 2009Assignee: CaridianBCT, Inc.Inventors: Dennis J. Hlavinka, William G Palsulich, Thomas J. Felt, Frank Corbin, III
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Patent number: 7033512Abstract: A centrifugal fluid separation system is disclosed for centrifugally separating a composite fluid into components thereof. This centrifugal separation system includes at least a centrifugal rotor which has a composite fluid containment area, a fluid flow channel/tubing and at least one separated component collection area defined therein. A composite fluid to be separated is delivered to the fluid containment area where under centrifugal forces the composite fluid is separated into components and then from which a component travels through an outlet channel to a respective separated component fluids flowing therethrough. A centrally disposed pump is also provided to move the separated component(s) to the collection area(s). Optical sensing of the interface of the separated fluid components may be used with a clamp to stop flow. A disposable bag and tubing system is also disclosed for use with reusable rotor devices.Type: GrantFiled: April 14, 2003Date of Patent: April 25, 2006Assignee: Gambro, IncInventors: Dennis J. Hlavinka, William G. Palsulich, Thomas J. Felt, Frank Corbin, III
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Publication number: 20030195104Abstract: A centrifugal fluid separation system is disclosed for centrifugally separating a composite fluid into components thereof. This centrifugal separation system includes at least a centrifugal rotor which has a composite fluid containment area, a fluid flow channel/tubing and at least one separated component collection area defined therein. A composite fluid to be separated is delivered to the fluid containment area where under centrifugal forces the composite fluid is separated into components and then from which a component travels through an outlet channel to a respective separated component fluids flowing therethrough. A centrally disposed pump is also provided to move the separated component(s) to the collection area(s). Optical sensing of the interface of the separated fluid components may be used with a clamp to stop flow. A disposable bag and tubing system is also disclosed for use with reusable rotor devices.Type: ApplicationFiled: April 14, 2003Publication date: October 16, 2003Applicant: Gambro, Inc.Inventors: Dennis J. Hlavinka, William G. Palsulich, Thomas J. Felt, Frank Corbin
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Patent number: 5693008Abstract: A combination pressure pod and access site apparatus is suitable for use in a medical tubing set. The combination pressure pod and access site comprises a pressure sensing chamber and a measured fluid chamber separated by a pressure transmissive diaphragm. An access site having a needle or needle-less septum is in fluid communication with the measured fluid chamber and permits and withdrawing fluids from, the measured fluid chamber through the access site. One or more of the combination pressure sites and access sites may be provided in a simplified blood tubing set for an extracorporeal blood treatment apparatus, such as a hemodialysis apparatus.Type: GrantFiled: June 7, 1995Date of Patent: December 2, 1997Assignee: COBE Laboratories, Inc.Inventors: James M. Brugger, Keith J. Manica, William G. Palsulich
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Patent number: 4798090Abstract: A fluid flow chamber cassette that can be mounted with either its front wall or rear wall against a supporting machine and has a flexible tube that extends from a sidewall and forms a loop that is symetrical about a loop axis that is transverse to the side wall so that the loop will be acted upon by a pump roller on the machine both when the front wall is against the machine and when the rear wall is against the machine. Also disclosed is automatically fixing the initial liquid levels and amounts of air in venous and arterial chambers of fluid flow transfer device apparatus by having the arterial chamber inlet enter the arterial chamber at a position higher than the arterial chamber outlet, having the venous chamber inlet enter the venous chamber at a position higher than the venous chamber outlet, and priming the apparatus by causing reverse flow, so that the liquid rises in the venous and arterial chambers to the level of the entrances of the inlets.Type: GrantFiled: February 11, 1987Date of Patent: January 17, 1989Assignee: Cobe Laboratories, Inc.Inventors: Gary B. Heath, William G. Palsulich, Keith J. Manica, Jack C. Swan, Jr.
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Patent number: 4770787Abstract: A fluid flow chamber cassette that can be mounted with either its front wall or rear wall against a supporting machine and has a flexible tube that extends from a sidewall and forms a loop that is symmetrical about a loop axis that is transverse to the side wall so that the loop will be acted upon by a pump roller on the machine both when the front wall is against the machine and when the rear wall is against the machine. Also disclosed is automatically fixing the initial liquid levels and amounts of air in venous and arterial chambers of fluid flow transfer device apparatus by having the arterial chamber inlet enter the arterial chamber at a position higher than the arterial chamber outlet, having the venous chamber inlet enter the venous chamber at a position higher than the venous chamber outlet, and priming the apparatus by causing reverse flow, so that the liquid rises in the venous and arterial chambers to the level of the entrances of the inlets.Type: GrantFiled: February 11, 1987Date of Patent: September 13, 1988Assignee: Cobe Laboratories, Inc.Inventors: Gary B. Heath, William G. Palsulich, Keith J. Manica, Jack C. Swan, Jr.
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Patent number: 4676467Abstract: Apparatus for supporting a fluid flow cassette having an opening for receiving a sensor, the apparatus including a sensor mounted on a support, means to lock the cassette into an insertion position with its opening aligned with but spaced from the sensor along an insertion axis, means to move the sensor relative to the opening to cause the sensor and opening to be brought together, and means to prevent the sensor and opening from coming close enough for the sensor to sealably engage the opening until after the cassette has been locked into the insertion position.Type: GrantFiled: October 31, 1985Date of Patent: June 30, 1987Assignee: Cobe Laboratories, Inc.Inventor: William G. Palsulich
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Patent number: 4666598Abstract: A fluid flow chamber cassette that can be mounted with either its front wall or rear wall against a supporting machine and has a flexible tube that extends from a sidewall and forms a loop that is symmetrical about a loop axis that is transverse to the side wall so that the loop will be acted upon by a pump roller on the machine both when the front wall is against the machine and when the rear wall is against the machine. Also disclosed is automatically fixing the initial liquid levels and amounts of air in venous and arterial chambers of fluid flow transfer device apparatus by having the arterial chamber inlet enter the arterial chamber at a position higher than the arterial chamber outlet, having the venous chamber inlet enter the venous chamber at a position higher than the venous chamber outlet, and priming the apparatus by causing reverse flow, so that the liquid rises in the venous and arterial chambers to the level of the entrances of the inlets.Type: GrantFiled: June 25, 1985Date of Patent: May 19, 1987Assignee: Cobe Laboratories, Inc.Inventors: Gary B. Heath, William G. Palsulich, Keith J. Manica, Jack C. Swan, Jr.