Patents by Inventor David Kenneth Wrolstad
David Kenneth Wrolstad 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: 11963822Abstract: An intraluminal imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member including a proximal portion and a distal portion; an imaging assembly positioned at the distal portion of the flexible elongate member; and a bridge member at electrical ground and in contact with at least a portion of the imaging assembly to maintain the at least portion of the imaging assembly at electrical ground, wherein the bridge member is disposed in cylindrical configuration. Associated devices, systems, and methods are also provided.Type: GrantFiled: September 25, 2017Date of Patent: April 23, 2024Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventor: David Kenneth Wrolstad
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Patent number: 11944489Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; a conductor extending between the proximal and distal portions of the flexible elongate member; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit including a body and a tab extending therefrom, the tab having a conductive portion coupled to the conductor; and a support member around which the flex circuit is disposed, the support member including a shelf on which tab is positioned.Type: GrantFiled: October 11, 2022Date of Patent: April 2, 2024Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventors: Maritess Minas, Princeton Saroha, Jeremy Stigall, David Kenneth Wrolstad
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Patent number: 11903759Abstract: An intravascular imaging device is provided. In some embodiments, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; and an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including a flex circuit positioned directly around the flexible elongate member. In some embodiments, a method of assembling an intravascular imaging device includes obtaining a flex circuit including a first layer having a plurality of transducers and a second layer having an acoustic backing material; and positioning the flex circuit directly around a distal portion of a flexible elongate member.Type: GrantFiled: September 19, 2022Date of Patent: February 20, 2024Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventors: Maritess Minas, Princeton Saroha, Jeremy Stigall, David Kenneth Wrolstad
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Patent number: 11857362Abstract: A method of assembling an intravascular imaging device is provided. In one embodiment, the method includes obtaining a support member having a body portion including a plurality of recesses longitudinally spaced from one another; positioning a flex circuit around the support member such that the flex circuit is radially spaced from the body portion of the support member; and filling a space between the flex circuit and the support member with a backing material through the plurality of recesses of the body portion. In one embodiment, an intravascular imaging device includes a flexible elongate member; an imaging assembly including: a flex circuit; and a support member around which the flex circuit is disposed, the support member having a body portion including plurality of recesses, wherein the support member defines lumen in fluid communication with a space between the flex circuit and the support member via the plurality of recesses.Type: GrantFiled: October 29, 2021Date of Patent: January 2, 2024Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventors: David Kenneth Wrolstad, Maritess Minas, Princeton Saroha, Jeremy Stigall
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Publication number: 20230285000Abstract: An intraluminal ultrasound imaging device includes a flexible elongate member and an ultrasound imaging assembly coupled to a distal portion of the flexible elongate member. The ultrasound imaging assembly includes a flexible substrate comprising a scanner body portion, one or more control circuits mounted on the scanner body portion, and one or more transducer elements mounted on the scanner body portion. The ultrasound imaging assembly also includes an attachment portion extending proximally from the scanner body portion. The attachment portion defines a path that curves in a first direction and different second direction, and includes a plurality of conductive traces in electrical communication with the one or more control circuits. The plurality of conductive traces follows the curved path of the attachment portion, and each conductive trace comprises a pattern that bends relative to the curved path of the attachment portion.Type: ApplicationFiled: July 19, 2021Publication date: September 14, 2023Inventors: Nathan Andrew Williams, David Kenneth WROLSTAD, Reynaldo Borja HALILI, Megan Danielle FRIEDLANDER, Maritess MINAS
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Publication number: 20230240647Abstract: An intraluminal imaging device includes a flexible elongate member configured to be inserted into a lumen within a body of a patient, the flexible elongate member comprising a longitudinal axis; an imaging assembly coupled to the flexible elongate member, the imaging assembly comprising: a plurality of ultrasound transducer elements disposed around the longitudinal axis of the flexible elongate member; a plurality of controllers configured to control the plurality of ultrasound transducer elements to obtain imaging data associated with the lumen; and a plurality of electrical wires extending between the plurality of the ultrasound transducer elements and the plurality of controllers and configured to facilitate communication between the plurality of the ultrasound transducer elements and the plurality of controllers.Type: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Inventors: Maritess MINAS, Princeton SAROHA, Jeremy STIGALL, David Kenneth WROLSTAD
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Publication number: 20230157667Abstract: An intraluminal imaging catheter includes a flexible elongate member configured to be positioned within a body lumen of a patient. The flexible elongate member includes a proximal portion and a distal portion. The catheter includes an ultrasound imaging assembly coupled to the flexible elongate member at the distal portion. The ultrasound imaging assembly includes a flexible substrate. The flexible substrate includes a first surface and an opposite, second surface. The imaging assembly also includes an ultrasound transducer array disposed on the flexible substrate. The flexible substrate includes a first recess extending from the first surface to the second surface. The ultrasound imaging assembly is coupled to the flexible elongate member via a first adhesive positioned in a space between the flexible substrate and the flexible elongate member via the first recess.Type: ApplicationFiled: February 20, 2021Publication date: May 25, 2023Inventors: Maritess MINAS, David Kenneth WROLSTAD, Nathan Andrew WILLIAMS
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Patent number: 11622746Abstract: An intraluminal imaging device includes a flexible elongate member configured to be inserted into a lumen within a body of a patient, the flexible elongate member comprising a longitudinal axis; an imaging assembly coupled to the flexible elongate member, the imaging assembly comprising: a plurality of ultrasound transducer elements disposed around the longitudinal axis of the flexible elongate member; a plurality of controllers configured to control the plurality of ultrasound transducer elements to obtain imaging data associated with the lumen; and a plurality of electrical wires extending between the plurality of the ultrasound transducer elements and the plurality of controllers and configured to facilitate communication between the plurality of the ultrasound transducer elements and the plurality of controllers.Type: GrantFiled: February 5, 2018Date of Patent: April 11, 2023Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventors: Maritess Minas, Princeton Saroha, Jeremy Stigall, David Kenneth Wrolstad
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Publication number: 20230073447Abstract: An intraluminal imaging device includes a flexible elongate member configured to be positioned within a body lumen of a patient. An ultrasound imaging assembly is disposed at the distal portion of the flexible elongate member. In some embodiments, a tip member with a protrusion is coupled to the ultrasound imaging assembly. The ultrasound imaging assembly and/or the flexible elongate member includes a recess that that receives the protrusion. In some embodiments, a support member includes a first stand, a second stand, a third stand, and a ridge. A flexible substrate with integrated circuit chips and an ultrasound transducer assembly is positioned around the support member. A filling material and an acoustic backing material are disposed in different spaces defined by the stands and flexible substrate. A tip member includes a groove receiving the ridge.Type: ApplicationFiled: February 20, 2021Publication date: March 9, 2023Inventors: Maritess MINAS, David Kenneth WROLSTAD, Nathan Andrew WILLIAMS
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Publication number: 20230038543Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; a conductor extending between the proximal and distal portions of the flexible elongate member; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit including a body and a tab extending therefrom, the tab having a conductive portion coupled to the conductor; and a support member around which the flex circuit is disposed, the support member including a shelf on which tab is positioned.Type: ApplicationFiled: October 11, 2022Publication date: February 9, 2023Inventors: Maritess MINAS, Princeton SAROHA, Jeremy STIGALL, David Kenneth WROLSTAD
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Publication number: 20230017929Abstract: An intravascular imaging device is provided. In some embodiments, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; and an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including a flex circuit positioned directly around the flexible elongate member. In some embodiments, a method of assembling an intravascular imaging device includes obtaining a flex circuit including a first layer having a plurality of transducers and a second layer having an acoustic backing material; and positioning the flex circuit directly around a distal portion of a flexible elongate member.Type: ApplicationFiled: September 19, 2022Publication date: January 19, 2023Inventors: Maritess MINAS, Princeton SAROHA, Jeremy STIGALL, David Kenneth WROLSTAD
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Patent number: 11497470Abstract: A method for fabricating an intravascular imaging assembly is provided. In one embodiment, the method includes forming a stacked structure (415) having a plurality of sacrificial material layers disposed between a plurality of ultrasound material layers in an alternating pattern; dicing the stacked structure (420) to form a plurality of elongated strips, each comprising an array of ultrasound elements defined by the plurality of ultrasound material layers and spacers defined by the plurality of sacrificial material layers; coupling a first elongated strip (430) of the plurality of elongated strips to a flexible circuit substrate; and removing the spacers (435) of the first elongated strip from the flexible circuit substrate.Type: GrantFiled: September 25, 2017Date of Patent: November 15, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Princeton Saroha, Maritess Minas, David Kenneth Wrolstad, Jeremy Stigall
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Publication number: 20220330916Abstract: An intravascular imaging probe including a multiple material support member or chassis, and associated devices, systems, and methods are provided. According to one embodiment, an intraluminal ultrasound imaging catheter includes a flexible elongate member configured to be positioned within a body lumen of a patient, a support member coupled to a distal portion of the flexible elongate member, and an ultrasound scanner assembly positioned around the support member. The support member includes a hollow inner member comprising a first material, and a first annular member positioned around a perimeter of the hollow inner member at a proximal portion of the hollow inner member. The first annular member extends radially outward from the hollow inner member and includes a second material that is different from the first material.Type: ApplicationFiled: September 30, 2020Publication date: October 20, 2022Inventors: David Kenneth WROLSTAD, Maritess MINAS, Nathan Andrew WILLIAMS
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Patent number: 11464480Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; a conductor extending between the proximal and distal portions of the flexible elongate member; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit including a body and a tab extending therefrom, the tab having a conductive portion coupled to the conductor; and a support member around which the flex circuit is disposed, the support member including a shelf on which tab is positioned.Type: GrantFiled: March 23, 2017Date of Patent: October 11, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Maritess Minas, Princeton Saroha, Jeremy Stigall, David Kenneth Wrolstad
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Patent number: 11446000Abstract: An intravascular imaging device (102) is provided. In some embodiments, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; and an imaging assembly (110) disposed at the distal portion of the flexible elongate member, the imaging assembly including a flex circuit (214) positioned directly around the flexible elongate member. In some embodiments, a method of assembling an intravascular imaging device includes obtaining a flex circuit including a first layer having a plurality of transducers and a second layer having an acoustic backing material; and positioning the flex circuit directly around a distal portion of a flexible elongate member.Type: GrantFiled: March 30, 2017Date of Patent: September 20, 2022Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATIONInventors: Maritess Minas, Princeton Saroha, Jeremy Stigall, David Kenneth Wrolstad
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Publication number: 20220202391Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit; a conductor extending along the flexible elongate member and in electrical communication with the flex circuit; and a support member around which the flex circuit is positioned, the support member including a conductive portion electrically coupled to the support member.Type: ApplicationFiled: January 14, 2022Publication date: June 30, 2022Inventors: David Kenneth Wrolstad, Maritess Minas, Princeton Saroha, Jeremy Stigall
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Publication number: 20220061805Abstract: An intraluminal imaging device includes a flexible elongate member configured to be positioned within a body lumen of a patient, the flexible elongate member comprising a proximal portion and a distal portion; an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member, the ultrasound imaging assembly comprising: a flexible substrate comprising: a proximal portion comprising a plurality of recesses extending completely through the flexible substrate from a first surface to an opposite, second surface; and a distal portion comprising a plurality of acoustic elements; a support member around which the distal portion of the flexible substrate is positioned; and a plurality of conductors extending along a length of the flexible elongate member and coupled to the proximal portion of the flexible substrate such that the plurality of conductors are in communication with the plurality of acoustic elements.Type: ApplicationFiled: December 24, 2019Publication date: March 3, 2022Inventors: Maritess MINAS, David Kenneth WROLSTAD
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Publication number: 20220047242Abstract: A method of assembling an intravascular imaging device is provided. In one embodiment, the method includes obtaining a support member having a body portion including a plurality of recesses longitudinally spaced from one another; positioning a flex circuit around the support member such that the flex circuit is radially spaced from the body portion of the support member; and filling a space between the flex circuit and the support member with a backing material through the plurality of recesses of the body portion. In one embodiment, an intravascular imaging device includes a flexible elongate member; an imaging assembly including: a flex circuit; and a support member around which the flex circuit is disposed, the support member having a body portion including plurality of recesses, wherein the support member defines lumen in fluid communication with a space between the flex circuit and the support member via the plurality of recesses.Type: ApplicationFiled: October 29, 2021Publication date: February 17, 2022Inventors: David Kenneth Wrolstad, Maritess Minas, Princeton Saroha, Jeremy Stigall
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Patent number: 11224407Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit; a conductor extending along the flexible elongate member and in electrical communication with the flex circuit; and a support member around which the flex circuit is positioned, the support member including a conductive portion electrically coupled to the support member.Type: GrantFiled: March 30, 2017Date of Patent: January 18, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: David Kenneth Wrolstad, Maritess Minas, Princeton Saroha, Jeremy Stigall
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Publication number: 20210338198Abstract: An intraluminal imaging device (102) includes a flexible elongate member sized and shaped for positioning within a vessel of a patient, the flexible elongate member including a proximal portion and a distal portion; an imaging assembly (110) disposed at the distal portion of the flexible elongate member, the imaging assembly including a conductor interface (320); a plurality of wires (330) extending along a length of the flexible elongate member and in communication with the imaging assembly, wherein the plurality of wires are coupled to the imaging assembly at the conductor interface; and a guide member (350) disposed adjacent to the conductor interface, wherein the plurality of wires extend through the guide member. Associated devices, systems, and methods are also provided.Type: ApplicationFiled: September 22, 2017Publication date: November 4, 2021Inventor: David Kenneth Wrolstad