Patents by Inventor Ken Vien
Ken Vien 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: 20240000530Abstract: An aspiration catheter can include an elongate shaft and an instrument base coupled to the shaft and configured to control actuation of at least a distal portion of the shaft. The shaft can include a lumen configured to couple to an aspiration system to provide aspiration to a target site, such as to remove an object from a patient. The instrument base can be controlled robotically and/or manually to articulate at least the distal portion of the shaft.Type: ApplicationFiled: May 26, 2023Publication date: January 4, 2024Inventors: Russell W. PONG, Thomas R. JENKINS, Luis Andrade BAEZ, JR., Bryan D. KNODEL, Ka Chun WONG, Ken VIEN
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Publication number: 20230233805Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: ApplicationFiled: April 3, 2023Publication date: July 27, 2023Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Patent number: 11617859Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: GrantFiled: September 11, 2021Date of Patent: April 4, 2023Assignee: BioCardia, Inc.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Publication number: 20220305237Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: ApplicationFiled: June 2, 2022Publication date: September 29, 2022Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman
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Publication number: 20220168544Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: ApplicationFiled: September 11, 2021Publication date: June 2, 2022Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Patent number: 11141568Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: GrantFiled: August 27, 2018Date of Patent: October 12, 2021Assignee: BioCardia, Inc.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Publication number: 20200398029Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: ApplicationFiled: September 2, 2020Publication date: December 24, 2020Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman
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Patent number: 10780248Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: GrantFiled: August 9, 2018Date of Patent: September 22, 2020Assignee: BioCardia, Inc.Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman
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Publication number: 20190151614Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: ApplicationFiled: August 27, 2018Publication date: May 23, 2019Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Publication number: 20180344986Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: ApplicationFiled: August 9, 2018Publication date: December 6, 2018Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman
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Patent number: 10071226Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: GrantFiled: September 30, 2014Date of Patent: September 11, 2018Assignee: BioCardia, Inc.Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman
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Publication number: 20170106170Abstract: A bi-directional steerable catheter adapted for delivery into a patient's vasculature. The pull wires which are used to tension the deflectable segment of the steerable catheter are wound in parallel around the axis of the steerable catheter on opposite sides of the steerable catheter.Type: ApplicationFiled: October 19, 2015Publication date: April 20, 2017Applicant: BIOCARDIA, INC.Inventors: Wai Hsueh, Ken Vien, James B. Ross
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Publication number: 20150231368Abstract: A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.Type: ApplicationFiled: September 30, 2014Publication date: August 20, 2015Applicant: BioCardia, Inc.Inventors: Wai Hsueh, Olin Jay Palmer, Scott Comiso, James B. Ross, Ken Vien, Julio Argentieri, Peter Altman