Patents by Inventor Ehsan Qaium
Ehsan Qaium 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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Publication number: 20230347111Abstract: Disclosed catheter insertion systems enable the user to identify the location of the needle based on the electrical properties of subcutaneous tissue relative the electrical properties of other fluids such as blood or air. Disclosed systems can include one or more of the following features: 1) the catheter assembly is modular (e.g., the catheter can be connected and disconnected from the detection unit at will); 2) the detection unit employs an electrical circuit that allows for the discernment between subcutaneous tissue and blood; 3) the system assists the end user with catheter advancement. Some embodiments can be used to insert catheters into a spaces where the needle passes first through subcutaneous fat and muscle before entering fluid or air.Type: ApplicationFiled: June 2, 2023Publication date: November 2, 2023Applicant: University of Pittsburgh - Of the Commonwealth System of Higher EducationInventors: Cameron Dezfulian, William W. Clark, Ehsan Qaium, Dennis Wist
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Patent number: 11701494Abstract: Disclosed catheter insertion systems enable the user to identify the location of the needle based on the electrical properties of subcutaneous tissue relative the electrical properties of other fluids such as blood or air. Disclosed systems can include one or more of the following features: 1) the catheter assembly is modular (e.g., the catheter can be connected and disconnected from the detection unit at will); 2) the detection unit employs an electrical circuit that allows for the discernment between subcutaneous tissue and blood; 3) the system assists the end user with catheter advancement. Some embodiments can be used to insert catheters into a spaces where the needle passes first through subcutaneous fat and muscle before entering fluid or air.Type: GrantFiled: July 5, 2018Date of Patent: July 18, 2023Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Cameron Dezfulian, William W. Clark, Ehsan Qaium, Dennis Wist
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Publication number: 20230149620Abstract: Disclosed cannula systems can detect the tissue type within which the cannula tip is located in real time using electrodes adjacent the cannula tip. The sensing cannula system can differentiate when the cannula tip is in adipose tissue or muscle based on electrical impedance. The system can be used in fat grafting and liposuction procedures, for example. An operator can detect if the cannula tip enters muscle by watching for an indicator light or audible alarm that is automatically activated by the device based on a change in sensed impedance. The device may also stop the flow of fat through a pump halting injection into the sub-muscular space.Type: ApplicationFiled: January 3, 2023Publication date: May 18, 2023Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, UPMCInventors: David Turer, William W. Clark, April Lawrence, Ehsan Qaium, Joseph P. Rubin, Cameron Dezfulian
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Patent number: 11547787Abstract: Disclosed cannula systems can detect the tissue type within which the cannula tip is located in real time using electrodes adjacent the cannula tip. The sensing cannula system can differentiate when the cannula tip is in adipose tissue or muscle based on electrical impedance. The system can be used in fat grafting and liposuction procedures, for example. An operator can detect if the cannula tip enters muscle by watching for an indicator light or audible alarm that is automatically activated by the device based on a change in sensed impedance. The device may also stop the flow of fat through a pump halting injection into the sub-muscular space.Type: GrantFiled: May 10, 2019Date of Patent: January 10, 2023Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, UPMCInventors: David Turer, William W. Clark, April Lawrence, Ehsan Qaium, Joseph P. Rubin, Cameron Dezfulian
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Publication number: 20220273188Abstract: Described herein are sensing cannula systems that include a surgical instrument, a detection unit, and a conductive pad having a reference electrode and configured to be placed on the patient at a location outside the patient's body. The surgical instrument can include a cannula (such as a fat grafting cannula) having an electrically conductive distal tip and electrical insulation covering the cannula proximally from the distal tip, wherein the distal tip comprises a first electrode. The detection unit can include electrical circuitry that is electrically coupled to the surgical instrument and the conductive pad and operable to measure an electrical impedance between the first electrode and the reference electrode to determine what type of tissue the distal tip is in.Type: ApplicationFiled: March 23, 2020Publication date: September 1, 2022Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, UPMCInventors: David Turer, William W. Clark, April Lawrence, Ehsan Qaium, Joseph Peter Rubin, Cameron Dezfulian
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Publication number: 20210093757Abstract: Disclosed cannula systems can detect the tissue type within which the cannula tip is located in real time using electrodes adjacent the cannula tip. The sensing cannula system can differentiate when the cannula tip is in adipose tissue or muscle based on electrical impedance. The system can be used in fat grafting and liposuction procedures, for example. An operator can detect if the cannula tip enters muscle by watching for an indicator light or audible alarm that is automatically activated by the device based on a change in sensed impedance. The device may also stop the flow of fat through a pump halting injection into the sub-muscular space.Type: ApplicationFiled: May 10, 2019Publication date: April 1, 2021Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, UPMCInventors: David Turer, William W. Clark, April Lawrence, Ehsan Qaium, Joseph Peter Rubin Peter Rubin, Cameron Dezfulian
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Publication number: 20200206471Abstract: Disclosed catheter insertion systems enable the user to identify the location of the needle based on the electrical properties of subcutaneous tissue relative the electrical properties of other fluids such as blood or air. Disclosed systems can include one or more of the following features: 1) the catheter assembly is modular (e.g., the catheter can be connected and disconnected from the detection unit at will); 2) the detection unit employs an electrical circuit that allows for the discernment between subcutaneous tissue and blood; 3) the system assists the end user with catheter advancement. Some embodiments can be used to insert catheters into a spaces where the needle passes first through subcutaneous fat and muscle before entering fluid or air.Type: ApplicationFiled: July 5, 2018Publication date: July 2, 2020Applicant: University of Pittsburgh - Of the Commonwealth System of Higher EducationInventors: Cameron Dezfulian, William W. Clark, Ehsan Qaium, Dennis Wist