Patents by Inventor Daniel Alexander Smith
Daniel Alexander Smith 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: 20240165360Abstract: Patient interface components and/or associated head gear and adjustment systems improve sealing and/or patient comfort and/or ease of use. The interface comprising an inflating or ballooning seal. The headgear assembly can be connected to the interface with an elastic component and an inelastic component. The elastic component enabling a course fitting of the interface to the patient and the inelastic component enabling a final fitting of the interface to the patient.Type: ApplicationFiled: December 4, 2023Publication date: May 23, 2024Inventors: Daniel John Smith, Brett John Huddart, Matthew James Adams, Nicholas Alexander Hobson, Timothy James Beresford Sharp, Roheet Patel, Gregory James Olsen, Matthew Roger Stephenson, Troy Barsten
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Publication number: 20220323142Abstract: Systems, devices, and methods for transvascular ablation of target tissue. The devices and methods may, in some examples, be used for splanchnic nerve ablation to increase splanchnic venous blood capacitance to treat at least one of heart failure and hypertension. For example, the devices disclosed herein may be advanced endovascularly to a target vessel in the region of a thoracic splanchnic nerve (TSN), such as a greater splanchnic nerve (GSN) or a TSN nerve root. Also disclosed are methods of treating heart failure, such as HFpEF, by endovascularly ablating a thoracic splanchnic nerve to increase venous capacitance and reduce pulmonary blood pressure.Type: ApplicationFiled: December 17, 2021Publication date: October 13, 2022Applicant: Axon Therapies, Inc.Inventors: Mark GELFAND, Howard LEVIN, Daniel Alexander SMITH, Ali SHAJII
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Patent number: 7829353Abstract: A system for delivering a desired mass of gas, including a chamber, a first valve controlling flow into the chamber, a second valve controlling flow out of the chamber, a pressure transducer connected to the chamber, an input device for providing a desired mass to be delivered, and a controller connected to the valves, the pressure transducer and the input device. The controller is programmed to receive the desired mass from the input device, close the second valve and open the first valve, receive chamber pressure measurements from the pressure transducer, and close the inlet valve when pressure within the chamber reaches a predetermined level. The controller is then programmed to wait a predetermined waiting period to allow the gas inside the chamber to approach a state of equilibrium, then open the outlet valve at time=t0, and close the outlet valve at time=t* when the mass of gas discharged equals the desired mass.Type: GrantFiled: October 26, 2006Date of Patent: November 9, 2010Assignee: MKS Instruments, Inc.Inventors: Ali Shajii, Siddharth P. Nagarkatti, Matthew Mark Besen, William R. Clark, Daniel Alexander Smith, Bora Akgerman
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Patent number: 7628860Abstract: A system for delivering a desired mass of gas, including a chamber, a first valve controlling flow into the chamber, a second valve controlling flow out of the chamber, a pressure transducer connected to the chamber, an input device for providing a desired mass to be delivered, and a controller connected to the valves, the pressure transducer and the input device. The controller is programmed to receive the desired mass from the input device, close the second valve and open the first valve, receive chamber pressure measurements from the pressure transducer, and close the inlet valve when pressure within the chamber reaches a predetermined level. The controller is then programmed to wait a predetermined waiting period to allow the gas inside the chamber to approach a state of equilibrium, then open the outlet valve at time=t0, and close the outlet valve at time=t* when the mass of gas discharged equals the desired mass.Type: GrantFiled: April 12, 2004Date of Patent: December 8, 2009Assignee: MKS Instruments, Inc.Inventors: Ali Shajii, Siddharth P. Nagarkatti, Matthew Mark Besen, William R. Clark, Daniel Alexander Smith, Bora Akgerman
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Patent number: 7615120Abstract: A system for delivering a desired mass of gas, including a chamber, a first valve controlling flow into the chamber, a second valve controlling flow out of the chamber, a pressure transducer connected to the chamber, an input device for providing a desired mass to be delivered, and a controller connected to the valves, the pressure transducer and the input device. The controller is programmed to receive the desired mass from the input device, close the second valve and open the first valve, receive chamber pressure measurements from the pressure transducer, and close the inlet valve when pressure within the chamber reaches a predetermined level. The controller is then programmed to wait a predetermined waiting period to allow the gas inside the chamber to approach a state of equilibrium, then open the outlet valve at time=t0, and close the outlet valve at time=t* when the mass of gas discharged equals the desired mass.Type: GrantFiled: October 26, 2006Date of Patent: November 10, 2009Assignee: MKS Instruments, Inc.Inventors: Ali Shajii, Siddharth P. Nagarkatti, Matthew Mark Besen, William R. Clark, Daniel Alexander Smith, Bora Akgerman
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Publication number: 20070039549Abstract: A system for delivering a desired mass of gas, including a chamber, a first valve controlling flow into the chamber, a second valve controlling flow out of the chamber, a pressure transducer connected to the chamber, an input device for providing a desired mass to be delivered, and a controller connected to the valves, the pressure transducer and the input device. The controller is programmed to receive the desired mass from the input device, close the second valve and open the first valve, receive chamber pressure measurements from the pressure transducer, and close the inlet valve when pressure within the chamber reaches a predetermined level. The controller is then programmed to wait a predetermined waiting period to allow the gas inside the chamber to approach a state of equilibrium, then open the outlet valve at time=t0, and close the outlet valve at time=t* when the mass of gas discharged equals the desired mass.Type: ApplicationFiled: October 26, 2006Publication date: February 22, 2007Inventors: Ali Shajii, Siddharth Nagarkatti, Matthew Mark Besen, William Clark, Daniel Alexander Smith, Bora Akgerman
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Patent number: 7174263Abstract: A flow verifier for in-situ verification of a device under test (DUT), including an inlet connectable to a DUT, an outlet connectable to a vacuum pump for drawing gas through the DUT and the flow verifier, a vessel having a predetermined volume, diffusive media connecting the inlet to the vessel, an outlet valve connecting the vessel to the outlet for controlling flow from the vessel to the outlet, at least one temperature sensor operatively connected to the vessel for providing temperature measurements from within the vessel, and a pressure transducer operatively connected to the vessel for providing pressure measurements from within the vessel.Type: GrantFiled: March 25, 2005Date of Patent: February 6, 2007Assignee: MKS Instruments, Inc.Inventors: Ali Shajii, Daniel Alexander Smith
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Patent number: 7121139Abstract: A flow rate sensor includes a main conduit, a sensor tube and a bypass tube connecting an upstream portion of the main conduit to a downstream portion of the main conduit such that flow through the main conduit is divided through the sensor tube and the bypass tube, and at least one heater element for heating the sensor tube. A first flow restrictor of porous media is positioned between the upstream portion of the main conduit and the sensor tube, and a second flow restrictor of porous media is positioned between the upstream portion of the main conduit and the bypass tube. The flow restrictors provide the flow rate sensor with a fixed bypass ratio so that the sensor can operate independently of the type of gas being measured.Type: GrantFiled: November 12, 2004Date of Patent: October 17, 2006Assignee: MKS Instruments, Inc.Inventors: Ali Shajii, Paul Meneghini, Daniel Alexander Smith